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1.
Breast Cancer Res Treat ; 194(2): 463-473, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35648299

RESUMEN

BACKGROUND: Women from socio-economically deprived areas are less likely to develop and then to survive breast cancer (BC). Whether associations between deprivation and BC incidence and survival differ by tumour molecular subtypes and mode of detection in Scotland are unknown. METHODS: Data consisted of 62,378 women diagnosed with invasive BC between 2000 and 2016 in Scotland. Incidence rates and time trends were calculated for oestrogen receptor positive (ER+) and negative (ER-) tumours and stratified by the Scottish Index of Multiple Deprivation (SIMD) quintiles and screening status. SIMD is an area-based measure derived across seven domains: income, employment, education, health, access to services, crime and housing. We calculated adjusted hazard ratios (aHR [95% confidence intervals]) for BC death by immunohistochemical surrogates of molecular subtypes for the most versus the least deprived quintile. We adjusted for mode of detection and other confounders. RESULTS: In Scotland, screen-detected ER+tumour incidence increased over time, particularly in the least deprived quintile [Average Annual Percentage Change (AAPC) = 2.9% with 95% CI from 1.2 to 4.7]. No marked differences were observed for non-screen-detected ER+tumours or ER- tumours by deprivation. BC mortality was higher in the most compared to the least deprived quintile irrespective of ER status (aHR = 1.29 [1.18, 1.41] for ER+ and 1.27 [1.09, 1.47] for ER- tumours). However, deprivation was associated with significantly higher mortality for luminal A and HER2-enriched tumours (aHR = 1.46 [1.13, 1.88] and 2.10 [1.23, 3.59] respectively) but weaker associations for luminal B and TNBC tumours that were not statistically significant. CONCLUSIONS: Deprivation is associated with differential BC incidence trends for screen-detected ER+tumours and with higher mortality for select tumour subtypes. Future efforts should evaluate factors that might be associated with reduced survival in deprived populations and monitor progress stratified by tumour subtypes and mode of detection.


Asunto(s)
Neoplasias de la Mama , Escolaridad , Femenino , Humanos , Incidencia , Renta , Pobreza , Factores Socioeconómicos
2.
Br J Cancer ; 127(5): 844-854, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35618787

RESUMEN

BACKGROUND: International Cancer Benchmarking Partnership Module 4 reports the first international comparison of ovarian cancer (OC) diagnosis routes and intervals (symptom onset to treatment start), which may inform previously reported variations in survival and stage. METHODS: Data were collated from 1110 newly diagnosed OC patients aged >40 surveyed between 2013 and 2015 across five countries (51-272 per jurisdiction), their primary-care physicians (PCPs) and cancer treatment specialists, supplement by treatment records or clinical databases. Diagnosis routes and time interval differences using quantile regression with reference to Denmark (largest survey response) were calculated. RESULTS: There were no significant jurisdictional differences in the proportion diagnosed with symptoms on the Goff Symptom Index (53%; P = 0.179) or National Institute for Health and Care Excellence NG12 guidelines (62%; P = 0.946). Though the main diagnosis route consistently involved primary-care presentation (63-86%; P = 0.068), onward urgent referral rates varied significantly (29-79%; P < 0.001). In most jurisdictions, diagnostic intervals were generally shorter and other intervals, in particular, treatment longer compared to Denmark. CONCLUSION: This study highlights key intervals in the diagnostic pathway where improvements could be made. It provides the opportunity to consider the systems and approaches across different jurisdictions that might allow for more timely ovarian cancer diagnosis and treatment.


Asunto(s)
Benchmarking , Neoplasias Ováricas , Carcinoma Epitelial de Ovario , Femenino , Humanos , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/terapia , Atención Primaria de Salud , Derivación y Consulta
3.
BMC Cancer ; 21(1): 496, 2021 May 03.
Artículo en Inglés | MEDLINE | ID: mdl-33941114

RESUMEN

BACKGROUND: More people are surviving a first primary cancer and experiencing a second, different cancer. However, little is known about the diagnostic journeys of patients with second primary cancer (SPC). This study explores the views of patients and general practitioners (GPs) on their experiences of pathways to diagnosis of SPC, including the influence of a previous diagnosis of cancer on symptom appraisal, help-seeking and referral decisions. METHODS: Qualitative interviews with patients with a SPC diagnosis and case-linked GP interviews in a Scottish primary care setting. In-depth face to face or telephone interviews were conducted, underpinned by a social constructionist approach. Interviews were transcribed and Braun and Clarke's thematic analysis undertaken. Three analysts from the research team read transcripts and developed the coding framework using QSR NVivo version 10, with input from a fourth researcher. Themes were developed from refined codes and interpreted in the context of existing literature and theory. RESULTS: Interviews were conducted with 23 patients (aged 43-84 years) with a SPC diagnosis, and 7 GPs. Five patient themes were identified: Awareness of SPC, symptom appraisal and help-seeking, pathways to diagnosis, navigating the healthcare system, and impact of SPC. GPs interviews identified: experience and knowledge of SPC and referrals and decision-making. CONCLUSIONS: Insights into the pathway to diagnosis of SPC highlights the need for increased awareness of and vigilance for SPC among patients and healthcare providers (HCPs), and emotional support to manage the psychosocial burden.


Asunto(s)
Médicos Generales/psicología , Neoplasias Primarias Secundarias/diagnóstico , Neoplasias Primarias Secundarias/psicología , Evaluación de Síntomas/psicología , Adulto , Anciano , Anciano de 80 o más Años , Concienciación , Toma de Decisiones Clínicas , Femenino , Conductas Relacionadas con la Salud , Conducta de Búsqueda de Ayuda , Humanos , Masculino , Persona de Mediana Edad , Atención Primaria de Salud , Distrés Psicológico , Investigación Cualitativa , Derivación y Consulta , Escocia
4.
BMJ Open ; 10(10): e037011, 2020 10 07.
Artículo en Inglés | MEDLINE | ID: mdl-33033017

RESUMEN

OBJECTIVE: Cancer screening should be equitably accessed by all populations. Uptake of colorectal cancer screening was examined using the Scottish Health and Ethnicity Linkage Study that links the Scottish Census 2001 to health data by individual-level self-reported ethnicity and religion. SETTING: Data on 1.7 million individuals in two rounds of the Scottish Bowel Cancer Screening Programme (2007-2013) were linked to the 2001 Census using the Scottish Community Health Index number. MAIN OUTCOME MEASURE: Uptake of colorectal cancer screening, reported as age-adjusted risk ratios (RRs) by ethnic group and religion were calculated for men and women with 95% CI. RESULTS: In the first, incidence screening round, compared with white Scottish men, Other White British (RR 109.6, 95% CI 108.8 to 110.3) and Chinese (107.2, 95% CI 102.8 to 111.8) men had higher uptake. In contrast, men of all South Asian groups had lower uptake (Indian RR 80.5, 95% CI 76.1 to 85.1; Pakistani RR 65.9, 95% CI 62.7 to 69.3; Bangladeshi RR 76.6, 95% CI 63.9 to 91.9; Other South Asian RR 88.6, 95% CI 81.8 to 96.1). Comparable patterns were seen among women in all ethnic groups, for example, Pakistani (RR 55.5, 95% CI 52.5 to 58.8). Variation in uptake was also observed by religion, with lower rates among Hindu (RR (95%CI): 78.4 (71.8 to 85.6)), Muslim (69.5 (66.7 to 72.3)) and Sikh (73.4 (67.1 to 80.3)) men compared with the reference population (Church of Scotland), with similar variation among women: lower rates were also seen among those who reported being Jewish, Roman Catholic or with no religion. CONCLUSIONS: There are important variations in uptake of bowel cancer screening by ethnic group and religion in Scotland, for both sexes, that require further research and targeted interventions.


Asunto(s)
Neoplasias Colorrectales , Etnicidad , Neoplasias Colorrectales/diagnóstico , Detección Precoz del Cáncer , Femenino , Humanos , Masculino , Estudios Retrospectivos , Escocia/epidemiología , Población Blanca
5.
Br J Cancer ; 123(5): 852-859, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32555534

RESUMEN

BACKGROUND: We describe temporal trends in breast cancer incidence by molecular subtypes in Scotland because public health prevention programmes, diagnostic and therapeutic services are shaped by differences in tumour biology. METHODS: Population-based cancer registry data on 72,217 women diagnosed with incident primary breast cancer from 1997 to 2016 were analysed. Age-standardised rates (ASR) and age-specific incidence were estimated by tumour subtype after imputing the 8% of missing oestrogen receptor (ER) status. Joinpoint regression and age-period-cohort models were used to assess whether significant differences were observed in incidence trends by ER status. RESULTS: Overall, ER-positive tumour incidence increased by 0.4%/year (95% confidence interval (CI): -0.1, 1.0). Among routinely screened women aged 50-69 years, we observed an increase in ASR from 1997 to 2011 (1.6%/year, 95% CI: 1.2-2.1). ER-negative tumour incidence decreased among all ages by 2.5%/year (95% CI: -3.9 to -1.1%) over the study period. Compared with the 1941-1959 birth cohort, women born in 1912-1940 had lower incidence rate ratios (IRR) for ER+ tumours and women born in 1960-1986 had lower IRR for ER- tumours. CONCLUSIONS: Future incidence and survival reporting should be monitored by molecular subtypes to inform clinical planning and cancer control programmes.


Asunto(s)
Neoplasias de la Mama/epidemiología , Factores de Edad , Anciano , Neoplasias de la Mama/metabolismo , Estudios de Cohortes , Femenino , Humanos , Incidencia , Persona de Mediana Edad , Receptor ErbB-2/metabolismo , Receptores de Estrógenos/metabolismo , Sistema de Registros , Escocia/epidemiología
6.
BMJ Open ; 9(11): e025895, 2019 11 27.
Artículo en Inglés | MEDLINE | ID: mdl-31776134

RESUMEN

OBJECTIVE: Differences in time intervals to diagnosis and treatment between jurisdictions may contribute to previously reported differences in stage at diagnosis and survival. The International Cancer Benchmarking Partnership Module 4 reports the first international comparison of routes to diagnosis and time intervals from symptom onset until treatment start for patients with lung cancer. DESIGN: Newly diagnosed patients with lung cancer, their primary care physicians (PCPs) and cancer treatment specialists (CTSs) were surveyed in Victoria (Australia), Manitoba and Ontario (Canada), Northern Ireland, England, Scotland and Wales (UK), Denmark, Norway and Sweden. Using Wales as the reference jurisdiction, the 50th, 75th and 90th percentiles for intervals were compared using quantile regression adjusted for age, gender and comorbidity. PARTICIPANTS: Consecutive newly diagnosed patients with lung cancer, aged ≥40 years, diagnosed between October 2012 and March 2015 were identified through cancer registries. Of 10 203 eligible symptomatic patients contacted, 2631 (27.5%) responded and 2143 (21.0%) were included in the analysis. Data were also available from 1211 (56.6%) of their PCPs and 643 (37.0%) of their CTS. PRIMARY AND SECONDARY OUTCOME MEASURES: Interval lengths (days; primary), routes to diagnosis and symptoms (secondary). RESULTS: With the exception of Denmark (-49 days), in all other jurisdictions, the median adjusted total interval from symptom onset to treatment, for respondents diagnosed in 2012-2015, was similar to that of Wales (116 days). Denmark had shorter median adjusted primary care interval (-11 days) than Wales (20 days); Sweden had shorter (-20) and Manitoba longer (+40) median adjusted diagnostic intervals compared with Wales (45 days). Denmark (-13), Manitoba (-11), England (-9) and Northern Ireland (-4) had shorter median adjusted treatment intervals than Wales (43 days). The differences were greater for the 10% of patients who waited the longest. Based on overall trends, jurisdictions could be grouped into those with trends of reduced, longer and similar intervals to Wales. The proportion of patients diagnosed following presentation to the PCP ranged from 35% to 75%. CONCLUSION: There are differences between jurisdictions in interval to treatment, which are magnified in patients with lung cancer who wait the longest. The data could help jurisdictions develop more focused lung cancer policy and targeted clinical initiatives. Future analysis will explore if these differences in intervals impact on stage or survival.


Asunto(s)
Benchmarking/estadística & datos numéricos , Neoplasias Pulmonares/diagnóstico , Atención Primaria de Salud/organización & administración , Sistema de Registros , Adulto , Anciano , Estudios Transversales , Femenino , Salud Global , Humanos , Neoplasias Pulmonares/epidemiología , Masculino , Persona de Mediana Edad , Morbilidad , Estudios Retrospectivos , Factores de Tiempo
7.
Cancer Epidemiol ; 60: 201-207, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31071525

RESUMEN

BACKGROUND: More men are living following a prostate cancer (PCa) diagnosis. They may need support to maximize the quality of their survival. Physical and psychological impacts of PCa are widely documented. Less is known about social impacts. We aimed to identify key factors associated with social distress following PCa. METHODS: The Life After Prostate Cancer Diagnosis study is a UK national cross-sectional survey of men 18-42 months post diagnosis of PCa. Men (n = 58 930) were invited to participate by their diagnosing cancer centre including 82% of English NHS Trusts (n = 111) and 100% of all Health Boards in Northern Ireland (n = 5), Scotland (n = 14) and Wales (n = 6). Social distress was measured using the Social Difficulties Inventory (SDI-21), 16 item Social Distress scale with men assigned to 'socially distressed'/'not socially distressed' groups, according to published guidelines. Clinical and sociodemographic variables were collected from self-report and cancer registries. RESULTS: Response rate 60.8% (n = 35 823) of whom 97% (n = 29 351) completed the Social Distress scale (mean age = 71.2; SD = 7.88). The proportion of 'socially distressed' men was 9.4%. Multivariable logistic regression analysis revealed unemployment versus employment (odds ratio (OR): 11.58 [95% CI 9.16-14.63]) and ≥3 co-morbidities versus none (OR: 5.37 [95% CI 4.61-6.27]) as key associations. Others were Androgen Deprivation Therapy, External Beam Radiotherapy in combination with another treatment, age, prior mental health problems and living in a socio-economically deprived area. CONCLUSION: Most men following PCa are socially resilient. A simple checklist could help clinicians identify men at risk of social distress.


Asunto(s)
Neoplasias de la Próstata/epidemiología , Calidad de Vida/psicología , Anciano , Estudios Transversales , Humanos , Masculino , Persona de Mediana Edad , Medio Social
8.
Cancer Epidemiol ; 59: 227-231, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30836220

RESUMEN

AIM: The prevalence of hysterectomy is decreasing worldwide. It is not clear whether changes in the population at risk (women with intact uteruses) have contributed to an increased uterine cancer incidence. This study aims to assess the effect of changing trends in hysterectomy prevalence on uterine cancer incidence in Scotland. METHODS: The population of women aged ≥25 years with intact uteri was estimated using the estimated hysterectomy prevalence in 1995 and the number of procedures performed in Scotland (1996-2015). Age-standardized uterine cancer incidence was estimated using uncorrected (total) or corrected (adjusted for hysterectomy prevalence) populations as denominators and the number of incident cancers as numerators. Annual percentage change in uterine cancer was estimated. RESULTS: Hysterectomy prevalence fell from 13% to 10% between 1996-2000 and 2011-2015, with the most marked decline (from 20% to 6%) in the 50-54-year age group. After correction for hysterectomy prevalence, age-standardized incidence of uterine cancer increased by 20-22%. Annual percentage change in incidence of uterine cancer remained stable through the study period and was 2.2% (95%CI 1.8-2.7) and 2.1% (95%CI 1.7-2.6) for uncorrected and corrected estimates, respectively. CONCLUSION: Uterine cancer incidence in Scotland corrected for hysterectomy prevalence is higher than estimates using a total female population as denominator. The annual percentage increase in uterine cancer incidence was stable in both uncorrected and corrected populations despite a declining hysterectomy prevalence. The rise in uterine cancer incidence may thus be driven by other factors, including an ageing population, changing reproductive choices, and obesity.


Asunto(s)
Histerectomía/estadística & datos numéricos , Negativa del Paciente al Tratamiento/estadística & datos numéricos , Neoplasias Uterinas/epidemiología , Neoplasias Uterinas/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Incidencia , Persona de Mediana Edad , Prevalencia , Escocia/epidemiología
9.
Lancet Oncol ; 20(3): 436-447, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30713036

RESUMEN

BACKGROUND: Little is known about the health-related quality of life (HRQOL) of men living with advanced prostate cancer. We report population-wide functional outcomes and HRQOL in men with all stages of prostate cancer and identify implications for health-care delivery. METHODS: For this population-based study, men in the UK living 18-42 months after diagnosis of prostate cancer were identified through cancer registration data. A postal survey was administered, which contained validated measures to assess functional outcomes (urinary incontinence, urinary irritation and obstruction, bowel, sexual, and vitality and hormonal function), measured with the Expanded Prostate Cancer Index Composite short form (EPIC-26), plus questions about use of interventions for sexual dysfunction) and generic HRQOL (assessed with the 5-level EuroQol five dimensions questionnaire [EQ-5D-5L] measuring mobility, self-care, usual activities, pain or discomfort, and anxiety or depression, plus a rating of self-assessed health). Log-linear and binary logistic regression models were used to compare functional outcomes and HRQOL across diagnostic stages and self-reported treatment groups. Each model included adjustment for age, socioeconomic deprivation, and number of other long-term conditions. FINDINGS: 35 823 (60·8%) of 58 930 men responded to the survey. Disease stage was known for 30 733 (85·8%) of 35 823 men; 19 599 (63·8%) had stage I or II, 7209 (23·4%) stage III, and 3925 (12·8%) stage IV disease. Mean adjusted EPIC-26 domain scores were high, indicating good function, except for sexual function, for which scores were much lower. Compared with men who did not receive androgen deprivation therapy, more men who received the therapy reported moderate to big problems with hot flushes (30·7% [95% CI 29·8-31·6] vs 5·4% [5·0-5·8]), low energy (29·4% [95% CI 28·6-30·3] vs 14·7% [14·2-15·3]), and weight gain (22·5%, 21·7-23·3) vs 6·9% [6·5-7·3]). Poor sexual function was common (81·0%; 95% CI 80·6-81·5), regardless of stage, and more than half of men (n=18 782 [55·8%]) were not offered any intervention to help with this condition. Overall, self-assessed health was similar in men with stage I-III disease, and although slightly reduced in those with stage IV cancer, 23·5% of men with metastatic disease reported no problems on any EQ-5D dimension. INTERPRETATION: Men diagnosed with advanced disease do not report substantially different HRQOL outcomes to those diagnosed with localised disease, although considerable problems with hormonal function and fatigue are reported in men treated with androgen deprivation therapy. Sexual dysfunction is common and most men are not offered helpful intervention or support. Service improvements around sexual rehabilitation and measures to reduce the effects of androgen deprivation therapy are required. FUNDING: The Movember Foundation, in partnership with Prostate Cancer UK.


Asunto(s)
Neoplasias de la Próstata/epidemiología , Calidad de Vida , Incontinencia Urinaria/epidemiología , Anciano , Antagonistas de Andrógenos/uso terapéutico , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Medición de Resultados Informados por el Paciente , Neoplasias de la Próstata/patología , Autoinforme , Encuestas y Cuestionarios , Reino Unido/epidemiología , Incontinencia Urinaria/patología
10.
J Clin Epidemiol ; 109: 125-132, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30711490

RESUMEN

OBJECTIVE: Evidence-based guidelines recommend adjuvant chemotherapy in early stage breast cancer whenever treatment benefit is considered sufficient to outweigh the associated risks. However, many groups of patients were either excluded from or underrepresented in the clinical trials that form the evidence base for this recommendation. This study aims to determine whether using administrative health care data-real world data-and econometric methods for causal analysis to provide "real world evidence" (RWE) are feasible methods for addressing this gap. METHODS: Cases of primary breast cancer in women from 2001 to 2015 were extracted from the Scottish cancer registry (SMR06) and linked to other routine health records (inpatient and outpatient visits). Four methods were used to estimate the effect of adjuvant chemotherapy on disease-specific and overall mortality: (1) regression with adjustment for covariates, (2) propensity score matching, (3) instrumental variables analysis, and (4) regression discontinuity design. Hazard ratios for breast cancer mortality and all-cause mortality were compared to those from a meta-analysis of randomized trials. RESULTS: A total of 39,805 cases were included in the analyses. Regression adjustment, propensity score matching, and instrumental variables were feasible, whereas regression discontinuity was not. Effectiveness estimates were similar between RWE and randomized trials for breast cancer mortality but not for all-cause mortality. CONCLUSIONS: RWE methods are a feasible means to generate estimates of effectiveness of adjuvant chemotherapy in early stage breast cancer. However, such estimates must be interpreted in the context of the available randomized evidence and the potential biases of the observational methods.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Quimioterapia Adyuvante/estadística & datos numéricos , Ensayos Clínicos como Asunto/estadística & datos numéricos , Resultado del Tratamiento , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Humanos , Persona de Mediana Edad , Modelos de Riesgos Proporcionales
11.
Cancer Epidemiol ; 58: 184-192, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30639877

RESUMEN

BACKGROUND: International cancer survival comparisons use cancer registration data to report cancer survival, which informs the development of cancer policy and practice. Studies like the International Cancer Benchmarking Partnership (ICBP) have a duty to understand how registration differences impact on survival prior to drawing conclusions. METHODS: Key informants reported differences in registration practice for capturing incidence date, death certificate case handling and registration of multiple primary tumours. Sensitivity analyses estimated their impact on one-year survival using baseline and supplementary cancer registration data from England and Sweden. RESULTS: Variations in registration practice accounted for up to a 7.3 percentage point difference between unadjusted (estimates from previous ICBP survival data) and adjusted (estimates recalculated accounting for registration differences) one-year survival, depending on tumour site and jurisdiction. One-year survival estimates for four jurisdictions were affected by adjustment: New South Wales, Norway, Ontario, Sweden. Sweden and Ontario's survival reduced after adjustment, yet they remained the jurisdictions with the highest survival for breast and ovarian cancer respectively. Sweden had the highest unadjusted lung cancer survival of 43.6% which was adjusted to 39.0% leaving Victoria and Manitoba with the highest estimate at 42.7%. For colorectal cancer, Victoria's highest survival of 85.1% remained unchanged after adjustment. CONCLUSION: Population-based cancer survival comparisons can be subject to registration biases that may impact the reported 'survival gap' between populations. Efforts should be made to apply consistent registration practices internationally. In the meantime, survival comparison studies should provide acknowledgement of or adjustment for the registration biases that may affect their conclusions.


Asunto(s)
Benchmarking , Neoplasias/mortalidad , Sistema de Registros/estadística & datos numéricos , Sistema de Registros/normas , Inglaterra/epidemiología , Femenino , Humanos , Incidencia , Masculino , Manitoba/epidemiología , Neoplasias/epidemiología , Nueva Gales del Sur/epidemiología , Noruega/epidemiología , Ontario/epidemiología , Pronóstico , Tasa de Supervivencia , Suecia/epidemiología
12.
PLoS Med ; 16(12): e1003006, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31891574

RESUMEN

BACKGROUND: Adjuvant chemotherapy in early stage breast cancer has been shown to reduce mortality in a large meta-analysis of over 100 randomised trials. However, these trials largely excluded patients aged 70 years and over or with higher levels of comorbidity. There is therefore uncertainty about whether the effectiveness of adjuvant chemotherapy generalises to these groups, hindering patient and clinician decision-making. This study utilises administrative healthcare data-real world data (RWD)-and econometric methods for causal analysis to estimate treatment effectiveness in these trial-underrepresented groups. METHODS AND FINDINGS: Women with early breast cancer aged 70 years and over and those under 70 years with a high level of comorbidity were identified and their records extracted from Scottish Cancer Registry (2001-2015) data linked to other routine health records. A high level of comorbidity was defined as scoring 1 or more on the Charlson comorbidity index, being in the top decile of inpatient stays, and/or having 5 or more visits to specific outpatient clinics, all within the 5 years preceding breast cancer diagnosis. Propensity score matching (PSM) and instrumental variable (IV) analysis, previously identified as feasible and valid in this setting, were used in conjunction with Cox regression to estimate hazard ratios for death from breast cancer and death from all causes. The analysis adjusts for age, clinical prognostic factors, and socioeconomic deprivation; the IV method may also adjust for unmeasured confounding factors. Cohorts of 9,653 and 7,965 were identified for women aged 70 years and over and those with high comorbidity, respectively. In the ≥70/high comorbidity cohorts, median follow-up was 5.17/6.53 years and there were 1,935/740 deaths from breast cancer. For women aged 70 years and over, the PSM-estimated HR was 0.73 (95% CI 0.64-0.95), while for women with high comorbidity it was 0.67 (95% CI 0.51-0.86). This translates to a mean predicted benefit in terms of overall survival at 10 years of approximately3% (percentage points) and 4%, respectively. A limitation of this analysis is that use of observational data means uncertainty remains both from sampling uncertainty and from potential bias from residual confounding. CONCLUSIONS: The results of this study, as RWD, should be interpreted with caution and in the context of existing and emerging randomised data. The relative effectiveness of adjuvant chemotherapy in reducing mortality in patients with early stage breast cancer appears to be generalisable to the selected trial-underrepresented groups.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Quimioterapia Adyuvante , Adulto , Anciano , Anciano de 80 o más Años , Quimioterapia Adyuvante/métodos , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Resultado del Tratamiento
13.
BMJ Open ; 8(11): e023870, 2018 11 27.
Artículo en Inglés | MEDLINE | ID: mdl-30482749

RESUMEN

OBJECTIVE: International differences in colorectal cancer (CRC) survival and stage at diagnosis have been reported previously. They may be linked to differences in time intervals and routes to diagnosis. The International Cancer Benchmarking Partnership Module 4 (ICBP M4) reports the first international comparison of routes to diagnosis for patients with CRC and the time intervals from symptom onset until the start of treatment. Data came from patients in 10 jurisdictions across six countries (Canada, the UK, Norway, Sweden, Denmark and Australia). DESIGN: Patients with CRC were identified via cancer registries. Data on symptomatic and screened patients were collected; questionnaire data from patients' primary care physicians and specialists, as well as information from treatment records or databases, supplemented patient data from the questionnaires. Routes to diagnosis and the key time intervals were described, as were between-jurisdiction differences in time intervals, using quantile regression. PARTICIPANTS: A total of 14 664 eligible patients with CRC diagnosed between 2013 and 2015 were identified, of which 2866 were included in the analyses. PRIMARY AND SECONDARY OUTCOME MEASURES: Interval lengths in days (primary), reported patient symptoms (secondary). RESULTS: The main route to diagnosis for patients was symptomatic presentation and the most commonly reported symptom was 'bleeding/blood in stool'. The median intervals between jurisdictions ranged from: 21 to 49 days (patient); 0 to 12 days (primary care); 27 to 76 days (diagnostic); and 77 to 168 days (total, from first symptom to treatment start). Including screen-detected cases did not significantly alter the overall results. CONCLUSION: ICBP M4 demonstrates important differences in time intervals between 10 jurisdictions internationally. The differences may justify efforts to reduce intervals in some jurisdictions.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Diagnóstico Tardío/estadística & datos numéricos , Atención a la Salud , Atención Primaria de Salud/estadística & datos numéricos , Atención Secundaria de Salud/estadística & datos numéricos , Tiempo de Tratamiento/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Australia , Canadá , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/terapia , Estudios Transversales , Dinamarca , Detección Precoz del Cáncer , Femenino , Humanos , Internacionalidad , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Noruega , Derivación y Consulta , Sistema de Registros , Suecia , Factores de Tiempo , Reino Unido
14.
Br J Cancer ; 119(7): 808-814, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30220705

RESUMEN

BACKGROUND: PREDICT is a widely used online prognostication and treatment benefit tool for patients with early stage breast cancer. The aim of this study was to conduct an independent validation exercise of the most up-to-date version of the PREDICT algorithm (version 2) using real-world outcomes from the Scottish population of women with breast cancer. METHODS: Patient data were obtained for all Scottish Cancer Registry (SCR) records with a diagnosis of primary invasive breast cancer diagnosed in the period between January 2001 and December 2015. Prognostic scores were calculated using the PREDICT version 2 algorithm. External validity was assessed by statistical analysis of discrimination and calibration. Discrimination was assessed by area under the receiver-operator curve (AUC). Calibration was assessed by comparing the predicted number of deaths to the observed number of deaths across relevant sub-groups. RESULTS: A total of 45,789 eligible cases were selected from 61,437 individual records. AUC statistics ranged from 0.74 to 0.77. Calibration results showed relatively close agreement between predicted and observed deaths. The 5-year complete follow-up sample reported some overestimation (11.5%), while the 10-year complete follow-up sample displayed more limited overestimation (1.7%). CONCLUSIONS: Validation results suggest that the PREDICT tool remains essentially relevant for contemporary patients with early stage breast cancer.


Asunto(s)
Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Adulto , Anciano , Algoritmos , Área Bajo la Curva , Femenino , Humanos , Persona de Mediana Edad , Modelos Estadísticos , Estadificación de Neoplasias , Pronóstico , Sistema de Registros , Escocia/epidemiología , Adulto Joven
15.
Cancer Epidemiol ; 56: 146-153, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30179828

RESUMEN

BACKGROUND: Five-year relative survival (RS) of adults with bone and soft-tissue cancers in Europe was still <60% by 1995-1999. There was large geographical survival variability, mainly for bone tumours, and survival decreased with increasing age at diagnosis. METHODS: Data from 87 population-based cancer registries in 29 countries, extracted from the EUROCARE-5 database, were used to provide updated estimates of survival and describe trends in survival of adults with cancers of these sites across Europe. We calculated 5-year RS for patients diagnosed in 2000-2007. We estimated 5-year RS by the period approach to assess changes in survival between 1999-2001, 2002-2004 and 2005-2007, and provide reliable predictions for recently diagnosed patients. RESULTS: Five-year RS was 60% for adults diagnosed with soft-tissue cancer in 2000-2007 and 53% for those with bone cancer. RS declined with increasing age at diagnosis, especially for bone cancer. Survival from bone cancer varied widely between European regions, from 63 to 62% in Northern and Central Europe to 39% in Eastern Europe. Inter-regional variation was much less for soft-tissue cancer. For both site groupings, there was little evidence of change in five-year RS up to 2002-2004, followed by increases of 3-4% during 2005-2007. CONCLUSIONS: Outcomes for adults with bone and soft-tissue cancer in Europe began to improve around 2005; new therapeutic developments are expected to result in further progress. Survival improvements already achieved must be brought more fully to elderly patients and those in Eastern Europe. European Reference Networks on rare cancers will have a vital role in future progress.


Asunto(s)
Neoplasias Óseas/mortalidad , Sistema de Registros/estadística & datos numéricos , Neoplasias de los Tejidos Blandos/mortalidad , Adolescente , Adulto , Anciano , Bases de Datos Factuales , Europa (Continente) , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Tasa de Supervivencia , Adulto Joven
16.
PLoS One ; 13(8): e0202805, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30138451

RESUMEN

BACKGROUND/OBJECTIVES: Advances in cancer management have resulted in improved survival rates, particularly in children and young adults. However, treatment may adversely affect reproductive outcomes among female cancer survivors. The objective of this study was to investigate their risk of adverse perinatal outcomes compared to the general population. DESIGN/METHODS: We performed a population-based analysis, including all female cancer survivors diagnosed before the age of 40 years between 1981 and 2012. Pregnancy and perinatal complications were identified through linkage of the Scottish Cancer Registry with hospital discharge records based on the Community Health Index (CHI) database. We compared 1,629 female cancer survivors with a first ever singleton pregnancy after diagnosis, with controls matched on age, deprivation quintile, and year of cancer diagnosis selected from the general population (n = 8,899). Relative risks and 95%-confidence intervals of perinatal risks were calculated using log-binomial regression. RESULTS: Survivors were more likely to give birth before 37 weeks of gestation (relative risk (RR]) 1.32, 95%-CI 1.10-1.59), but did not show an increased risk of low birth weight (<2.5kg: RR 1.15, 95%-CI 0.94-1.39), and were less likely to give birth to offspring small for gestational age (RR 0.81, 95%-CI 0.68-0.98). Operative delivery and postpartum haemorrhage were more common but approached rates in controls with more recent diagnosis. The risk of congenital abnormalities was not increased (RR 1.01, 95%-CI 0.85-1.20). CONCLUSION: Cancer survivors have an increased risk of premature delivery and postpartum haemorrhage, but their offspring are not at increased risk for low birth weight or congenital abnormalities. In recent decades there has been a normalisation of delivery method in cancer survivors, nevertheless careful management remains appropriate particularly for those diagnosed in childhood.


Asunto(s)
Hemorragia Posparto/epidemiología , Complicaciones del Embarazo/epidemiología , Nacimiento Prematuro/epidemiología , Adulto , Supervivientes de Cáncer , Cesárea/estadística & datos numéricos , Femenino , Humanos , Recién Nacido de Bajo Peso , Recién Nacido Pequeño para la Edad Gestacional , Atención Perinatal , Embarazo , Complicaciones del Embarazo/clasificación
17.
Gut ; 67(12): 2116-2123, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30012724

RESUMEN

OBJECTIVE: An association between detectable faecal haemoglobin (f-Hb) and both the risk of death from colorectal cancer (CRC) and all-cause mortality has been reported. We set out to confirm or refute this observation in a UK population and to explore the association between f-Hb, as indicated by a positive guaiac faecal occult blood test (gFOBT) result, and different causes of death. DESIGN: All individuals (134 192) who participated in gFOBT screening in Tayside, Scotland between 29/03/2000 and 29/03/2016 were studied by linking their test result (positive or negative) with mortality data from the National Records of Scotland database and following to 30/03/2016. RESULTS: Those with a positive test result (n=2714) had a higher risk of dying than those with a negative result, from CRC: HR 7.79 (95% CI 6.13 to 9.89), p<0.0001, (adjusted for, gender, age, deprivation quintile and medication that can cause bleeding) and all non-CRC causes: HR 1.58 (95% CI 1.45 to 1.73), p<0·0001.· In addition, f-Hb detectable by gFOBT was significantly associated with increased risk of dying from circulatory disease, respiratory disease, digestive diseases (excluding CRC), neuropsychological disease, blood and endocrine disease and non-CRC. CONCLUSION: The presence of detectable f-Hb is associated with increased risk of death from a wide range of causes.


Asunto(s)
Mortalidad , Sangre Oculta , Anciano , Causas de Muerte , Neoplasias Colorrectales/mortalidad , Bases de Datos como Asunto , Utilización de Medicamentos/estadística & datos numéricos , Detección Precoz del Cáncer , Femenino , Hemorragia Gastrointestinal/inducido químicamente , Humanos , Masculino , Registro Médico Coordinado , Persona de Mediana Edad , Medición de Riesgo/métodos , Escocia/epidemiología
18.
Hum Reprod ; 33(7): 1281-1290, 2018 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-29912328

RESUMEN

STUDY QUESTION: What is the impact of cancer in females aged ≤39 years on subsequent chance of pregnancy? SUMMARY ANSWER: Cancer survivors achieved fewer pregnancies across all cancer types, and the chance of achieving a first pregnancy was also lower. WHAT IS KNOWN ALREADY: The diagnosis and treatment of cancer in young females may be associated with reduced fertility but the true pregnancy deficit in a population is unknown. STUDY DESIGN, SIZE, DURATION: We performed a retrospective cohort study relating first incident cancer diagnosed between 1981 and 2012 to subsequent pregnancy in all female patients in Scotland aged 39 years or less at cancer diagnosis (n = 23 201). Pregnancies were included up to end of 2014. Females from the exposed group not pregnant before cancer diagnosis (n = 10 271) were compared with general population controls matched for age, deprivation quintile and year of diagnosis. PARTICIPANTS/MATERIALS, SETTING, METHODS: Scottish Cancer Registry records were linked to hospital discharge records to calculate standardized incidence ratios (SIR) for pregnancy, standardized for age and year of diagnosis. Linkage to death records was also performed. We also selected women from the exposed group who had not been pregnant prior to their cancer diagnosis who were compared with a matched control group from the general population. Additional analyses were performed for breast cancer, Hodgkin lymphoma, leukaemia, cervical cancer and brain/CNS cancers. MAIN RESULTS AND THE ROLE OF CHANCE: Cancer survivors achieved fewer pregnancies: SIR 0.62 (95% CI: 0.60, 0.63). Reduced SIR was observed for all cancer types. The chance of achieving a first pregnancy was also lower, adjusted hazard ratio = 0.57 (95% CI: 0.53, 0.61) for women >5 years after diagnosis, with marked reductions in women with breast, cervical and brain/CNS tumours, and leukaemia. The effect was reduced with more recent treatment period overall and in cervical cancer, breast cancer and Hodgkin lymphoma, but was unchanged for leukaemia or brain/CNS cancers. The proportion of pregnancies that ended in termination was lower after a cancer diagnosis, and the proportion ending in live birth was higher (78.7 vs 75.6%, CI of difference: 1.1, 5.0). LIMITATIONS, REASONS FOR CAUTION: Details of treatments received were not available, so the impact of specific treatment regimens on fertility could not be assessed. Limited duration of follow-up was available for women diagnosed in the most recent time period. WIDER IMPLICATIONS OF THE FINDINGS: This analysis provides population-based quantification by cancer type of the effect of cancer and its treatment on subsequent pregnancy across the reproductive age range, and how this has changed in recent decades. The demonstration of a reduced chance of pregnancy across all cancer types and the changing impact in some but not other common cancers highlights the need for appropriate fertility counselling of all females of reproductive age at diagnosis. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by NHS Lothian Cancer and Leukaemia Endowments Fund. Part of this work was undertaken in the MRC Centre for Reproductive Health which is funded by the MRC Centre grant MR/N022556/1. RAA has participated in Advisory Boards and/or received speaker's fees from Beckman Coulter, IBSA, Merck and Roche Diagnostics. He has received research support from Roche Diagnostics, Ansh labs and Ferring. The other authors have no conflicts to declare.


Asunto(s)
Supervivientes de Cáncer , Infertilidad Femenina/etiología , Neoplasias/complicaciones , Índice de Embarazo , Adulto , Tasa de Natalidad , Femenino , Fertilización In Vitro , Humanos , Nacimiento Vivo , Embarazo , Sistema de Registros , Estudios Retrospectivos , Escocia
19.
Br J Gen Pract ; 68(673): e566-e575, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29914883

RESUMEN

BACKGROUND: Those living in rural areas have poorer cancer outcomes, but current evidence on how rurality impacts melanoma care and survival is contradictory. AIM: To investigate the impact of rurality on setting of melanoma excision and mortality in a whole-nation cohort. DESIGN AND SETTING: Analysis of linked routine healthcare data comprising every individual in Scotland diagnosed with melanoma, January 2005-December 2013, in primary and secondary care. METHOD: Multivariate binary logistic regression was used to explore the relationship between rurality and setting of melanoma excision; Cox proportional hazards regression between rurality and mortality was used, with adjustments for key confounders. RESULTS: In total 9519 patients were included (54.3% [n = 5167] female, mean age 60.2 years [SD 17.5]). Of melanomas where setting of excision was known, 90.3% (n = 8598) were in secondary care and 8.1% (n = 771) in primary care. Odds of primary care excision increased with increasing rurality/remoteness. Compared with those in urban areas, those in the most remote rural locations had almost twice the odds of melanoma excision in primary care (adjusted odds ratio [aOR] 1.92; 95% confidence interval [CI] = 1.33 to 2.77). No significant association was found between urban or rural residency and all-cause mortality. Melanoma-specific mortality was significantly lower in individuals residing in accessible small towns than in large urban areas (adjusted hazards ratio [HR] 0.53; 95% CI = 0.33 to 0.87) with no trend towards poorer survival with increasing rurality. CONCLUSION: Patients in Scottish rural locations were more likely to have a melanoma excised in primary care. However, those in rural areas did not have significantly increased mortality from melanoma. Together these findings suggest that current UK melanoma management guidelines could be revised to be more realistic by recognising the role of primary care in the prompt diagnosis and treatment of those in rural locations.


Asunto(s)
Melanoma/terapia , Atención Primaria de Salud , Salud Rural , Atención Secundaria de Salud , Neoplasias Cutáneas/terapia , Anciano , Biopsia/estadística & datos numéricos , Femenino , Investigación sobre Servicios de Salud , Humanos , Masculino , Melanoma/diagnóstico , Melanoma/mortalidad , Melanoma/cirugía , Persona de Mediana Edad , Evaluación de Procesos y Resultados en Atención de Salud , Modelos de Riesgos Proporcionales , Población Rural , Escocia/epidemiología , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/mortalidad , Neoplasias Cutáneas/cirugía
20.
BJU Int ; 122(5): 845-857, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-29489050

RESUMEN

OBJECTIVES: To provide data on the prevalence of urinary, bowel and sexual dysfunction in Northern Ireland (NI), to act as a baseline for studies of prostate cancer outcomes and to aid service provision within the general population. SUBJECTS AND METHODS: A cross-sectional postal survey of 10 000 men aged ≥40 years in NI was conducted and age-matched to the distribution of men living with prostate cancer. The EuroQoL five Dimensions five Levels (EQ-5D-5L) and 26-item Expanded Prostate Cancer Composite (EPIC-26) instruments were used to enable comparisons with prostate cancer outcome studies. Whilst representative of the prostate cancer survivor population, the age-distribution of the sample differs from the general population, thus data were generalised to the NI population by excluding those aged 40-59 years and applying survey weights. Results are presented as proportions reporting problems along with mean composite scores, with differences by respondent characteristics assessed using chi-squared tests, analysis of variance, and multivariable log-linear regression. RESULTS: Amongst men aged ≥60 years, 32.8% reported sexual dysfunction, 9.3% urinary dysfunction, and 6.5% bowel dysfunction. In all, 38.1% reported at least one problem and 2.1% all three. Worse outcome was associated with increasing number of long-term conditions, low physical activity, and higher body mass index (BMI). Urinary incontinence, urinary irritation/obstruction, and sexual dysfunction increased with age; whilst urinary incontinence, bowel, and sexual dysfunction were more common among the unemployed. CONCLUSION: These data provide an insight into sensitive issues seldom reported by elderly men, which result in poor general health, but could be addressed given adequate service provision. The relationship between these problems, raised BMI and low physical activity offers the prospect of additional health gain by addressing public health issues such as obesity. The results provide essential contemporary population data against which outcomes for those living with prostate cancer can be compared. They will facilitate greater understanding of the true impact of specific treatments such as surgical interventions, pelvic radiation or androgen-deprivation therapy.


Asunto(s)
Enfermedades Intestinales/epidemiología , Disfunciones Sexuales Fisiológicas/epidemiología , Trastornos Urinarios/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Humanos , Masculino , Salud del Hombre , Persona de Mediana Edad , Irlanda del Norte/epidemiología , Prevalencia
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