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1.
Osteoporos Int ; 34(7): 1193-1205, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37016146

RESUMEN

PURPOSE: This scoping review aimed to synthesise the available evidence on barriers and facilitators of weight bearing after hip fracture surgery in older adults. METHODS: Published (Cochrane Central, MEDLINE, EMBASE, CINAHL, and PEDro) and unpublished (Global Health, EThOS, WorldCat dissertation and thesis, ClinicalTrials.gov , OpenAIRE, DART-Europe) evidence was electronically searched from database inception to 29 March 2022. Barriers and facilitators of weight bearing were extracted and synthesised into patient, process (non-surgical), process (surgical), and structure-related barriers/facilitators using a narrative review approach. RESULTS: In total, 5594 were identified from the primary search strategy, 1314 duplicates were removed, 3769 were excluded on title and abstract screening, and 442 were excluded on full-text screening. In total, 69 studies (all from published literature sources) detailing 47 barriers and/or facilitators of weight bearing were included. Of barriers/facilitators identified, 27 were patient-, 8 non-surgical process-, 8 surgical process-, and 4 structure-related. Patient facilitators included anticoagulant, home discharge, and aid at discharge. Barriers included preoperative dementia and delirium, postoperative delirium, pressure sores, indoor falls, ventilator dependence, haematocrit < 36%, systemic sepsis, and acute renal failure. Non-surgical process facilitators included early surgery, early mobilisation, complete medical co-management, in-hospital rehabilitation, and patient-recorded nurses' notes. Barriers included increased operative time and standardised hip fracture care. Surgical process facilitators favoured intramedullary fixations and arthroplasty over extramedullary fixation. Structure facilitators favoured more recent years and different healthcare systems. Barriers included pre-holiday surgery and admissions in the first quarter of the year. CONCLUSION: Most patient/surgery-related barriers/facilitators may inform future risk stratification. Future research should examine additional process/structure barriers and facilitators amenable to intervention. Furthermore, patient barriers/facilitators need to be investigated by replicating the studies identified and augmenting them with more specific details on weight bearing outcomes.


Asunto(s)
Fracturas de Cadera , Humanos , Anciano , Fracturas de Cadera/cirugía , Fracturas de Cadera/rehabilitación , Soporte de Peso , Europa (Continente)
2.
Clin Exp Dermatol ; 46(8): 1558-1560, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34137070

RESUMEN

Pyoderma gangrenosum (PG) is an autoinflammatory neutrophilic dermatosis characterized by rapidly enlarging, painful ulcers. Anakinra is a recombinant interleukin (IL)-1 receptor antagonist that blocks the activity of IL-1α and IL-1ß by competitively inhibiting IL-1 binding to the IL-1 type 1 receptor. We present a series of two patients with recalcitrant PG, who had limited therapeutic options and multiple comorbidities and multiple previous treatment failures, who obtained 100% healing with anakinra. Compared with conventional first-line therapies for PG, the safety profile of anakinra may be preferable for patients with multiple comorbidities. Further research is needed to assess the safety and efficacy of anakinra for PG.


Asunto(s)
Fármacos Dermatológicos/uso terapéutico , Proteína Antagonista del Receptor de Interleucina 1/uso terapéutico , Piodermia Gangrenosa/tratamiento farmacológico , Anciano , Síndrome Antifosfolípido/complicaciones , Artritis Reumatoide/complicaciones , Fármacos Dermatológicos/efectos adversos , Dislipidemias/complicaciones , Femenino , Humanos , Hipertensión/complicaciones , Proteína Antagonista del Receptor de Interleucina 1/efectos adversos , Persona de Mediana Edad , Obesidad/complicaciones , Enfermedades Vasculares Periféricas/complicaciones , Piodermia Gangrenosa/complicaciones , Insuficiencia Renal Crónica/complicaciones
3.
Clin Exp Dermatol ; 46(4): 720-722, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33639003

RESUMEN

Full skin examination (FSE) may improve the detection of malignant melanoma (MM). The objective of this study was to assess the safety of targeted lesion examination (TLE) compared with FSE in our Pigmented Lesion Clinic (PLC). Patients attending the PLC were randomized in a 2 : 1 ratio to FSE (intervention) or TLE (standard care). Demographic details and risk factors were documented, and the time taken to perform FSE and TLE was noted. Of 763 participants, 520 were assigned to FSE and 243 were assigned to TLE. On average, FSE took 4.02 min and TLE took 30 s to perform. Of the 520 participants assigned to FSE, 37 (7.1%) had incidental findings, of whom 12 patients (2.3%) had additional lesions biopsied. No additional melanomas were detected that would have been missed by use of the standard protocol. This study suggests that in low-risk patients referred to a PLC with a lesion of concern, the possibility of missing incidental cutaneous malignancies using lesion-directed examination is low.


Asunto(s)
Melanoma/diagnóstico , Examen Físico/métodos , Neoplasias Cutáneas/diagnóstico , Adulto , Biopsia , COVID-19 , Dermatología/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Diagnóstico Erróneo , Factores de Riesgo
4.
BMC Geriatr ; 21(1): 537, 2021 10 10.
Artículo en Inglés | MEDLINE | ID: mdl-34627160

RESUMEN

BACKGROUND: Patients with hip fracture and depression are less likely to recover functional ability. This review sought to identify prognostic factors of depression or depressive symptoms up to 1 year after hip fracture surgery in adults. This review also sought to describe proposed underlying mechanisms for their association with depression or depressive symptoms. METHODS: We searched for published (MEDLINE, Embase, PsychInfo, CINAHL and Web of Science Core Collection) and unpublished (OpenGrey, Greynet, BASE, conference proceedings) studies. We did not impose any date, geographical, or language limitations. Screening (Covidence), extraction (Checklist for critical Appraisal and data extraction for systematic Reviews of prediction Modelling Studies, adapted for use with prognostic factors studies Checklist), and quality appraisal (Quality in Prognosis Studies tool) were completed in duplicate. Results were summarised narratively. RESULTS: In total, 37 prognostic factors were identified from 12 studies included in this review. The quality of the underlying evidence was poor, with all studies at high risk of bias in at least one domain. Most factors did not have a proposed mechanism for the association. Where factors were investigated by more than one study, the evidence was often conflicting. CONCLUSION: Due to conflicting and low quality of available evidence it is not possible to make clinical recommendations based on factors prognostic of depression or depressive symptoms after hip fracture. Further high-quality research investigating prognostic factors is warranted to inform future intervention and/or stratified approaches to care after hip fracture. TRIAL REGISTRATION: Prospero registration: CRD42019138690 .


Asunto(s)
Depresión , Fracturas de Cadera , Depresión/diagnóstico , Depresión/epidemiología , Depresión/etiología , Fracturas de Cadera/diagnóstico , Fracturas de Cadera/epidemiología , Fracturas de Cadera/cirugía , Humanos , Pronóstico
5.
J Reprod Infant Psychol ; 39(1): 2-15, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33206580

RESUMEN

Objective: To discuss and develop a statement on the current state of the evidence and opinion in Fear of Childbirth (FoC) and Tokophobia (Tocophobia), and to provide recommendations. Background: A group met in 2019 to discuss the state of clinical and academic knowledge relating to FoC/Tokophobia. Five key areas were agreed as the focus of the meeting. Methods: 12 internationally acknowledged experts, in this or a closely related area (e.g. PTSD) met to discuss their understanding of the evidence for FoC/ Tokophobia and current practice. The consensus described in this paper constitutes the expression of the general opinion of the participants and does not necessarily imply unanimity. Keys points: Work focussed on tokophobia is recent and there remains a wide range of issues, which were addressed in the workshop including complexity in defining prevalence, a theoretical lack of understanding, which creates challenge for robust assessment and the identification of risk factors. An improved aetiological and developmental understanding of the tokophobia is required to underpin appropriate, effective and evidence-based interventions. Evaluation of pathways of care and relevant interventions, should be a focus of future research. Conclusion: Significant gaps remain within the FoC/tokophobia knowledge base. Further research is necessary.


Asunto(s)
Parto Obstétrico/psicología , Miedo/psicología , Trastornos Fóbicos/diagnóstico , Mujeres Embarazadas/psicología , Consenso , Parto Obstétrico/normas , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Trastornos Fóbicos/terapia , Embarazo , Apoyo Social
8.
BMC Geriatr ; 17(1): 125, 2017 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-28619010

RESUMEN

BACKGROUND: One of the most common uses of the Internet is to search for health-related information. Although scientific evidence pertaining to cognitive health promotion has expanded rapidly in recent years, it is unclear how much of this information has been made available to Internet users. Thus, the purpose of our study was to assess the reliability and quality of information about cognitive health promotion encountered by typical Internet users. METHODS: To generate a list of relevant search terms employed by Internet users, we entered seed search terms in Google Trends and recorded any terms consistently used in the prior 2 years. To further approximate the behaviour of typical Internet users, we entered each term in Google and sampled the first two relevant results. This search, completed in October 2014, resulted in a sample of 86 webpages, 48 of which had content related to cognitive health promotion. An interdisciplinary team rated the information reliability and quality of these webpages using a standardized measure. RESULTS: We found that information reliability and quality were moderate, on average. Just one retrieved page mentioned best practice, national recommendations, or consensus guidelines by name. Commercial content (i.e., product promotion, advertising content, or non-commercial) was associated with differences in reliability and quality, with product promoter webpages having the lowest mean reliability and quality ratings. CONCLUSIONS: As efforts to communicate the association between lifestyle and cognitive health continue to expand, we offer these results as a baseline assessment of the reliability and quality of cognitive health promotion on the Internet.


Asunto(s)
Cognición , Promoción de la Salud/normas , Internet/normas , Motor de Búsqueda/normas , Promoción de la Salud/métodos , Humanos , Reproducibilidad de los Resultados , Motor de Búsqueda/métodos
9.
Ir Med J ; 110(7): 620, 2017 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-29169002

RESUMEN

Aim The aim of this study was to assess skin cancer awareness and identify the UV protective measures used by golfers within the Munster region of Ireland. Methods Subjects were recruited from throughout the Munster region at a regional competition, and at three other local golf clubs and "pro" shops. Participants filled out a short anonymous validated questionnaire when collecting their score cards7. Results One hundred and sixty-three golfers completed the questionnaire with a mean age of 65.6 years. 137 (84%) were male and 26 (16%) were female. We noted a high incidence of both non-melanoma and melanoma skin cancer in our subjects. Sixteen (9.8%) had a previous history of skin cancer, with 8 melanomas and 8 non-melanoma skin cancers. A high percentage, 85%, of the golfers surveyed were compliant with SPF use. However many were using too low a SPF, 63 (44%) were using a SPF less than 30. Knowledge of risk of skin cancer is better amongst the golfers surveyed when compared to the general population. Most respondents (N = 96 (59%)) were aware that melanoma can lead to death if left untreated and 114 (70%) recognized that melanoma can be cured if treated early. Conclusion Golfers may benefit from targeted education emphasizing the importance of higher SPF use. Other interventions that may benefit this population would include availability of sunscreens and educational literature in 'pro' shops at golf courses.


Asunto(s)
Concienciación , Golf/estadística & datos numéricos , Melanoma/epidemiología , Melanoma/prevención & control , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/prevención & control , Protectores Solares/administración & dosificación , Anciano , Femenino , Educación en Salud , Humanos , Irlanda/epidemiología , Masculino , Encuestas y Cuestionarios
12.
Ann Oncol ; 26(4): 715-724, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25595934

RESUMEN

BACKGROUND: Adjuvant oxaliplatin plus capecitabine or leucovorin/5-fluorouracil (LV/5-FU) (XELOX/FOLFOX) is the standard of care for stage III colon cancer (CC); however, there is disagreement regarding oxaliplatin benefit in patients aged >70. In most analyses, the impact of medical comorbidity (MC) has not been assessed. Efficacy and safety of adjuvant XELOX/FOLFOX versus LV/5-FU were compared with respect to age and MC using pooled data from four randomized, controlled trials, selected for access to patient-level MC data and including commonly endorsed and utilized regimens. PATIENTS AND METHODS: Individual data from patients with stage III CC in NSABP C-08, XELOXA, X-ACT, and AVANT were pooled, excluding bevacizumab-treated patients. Patients were grouped by treatment, MC (low versus high), or age (<70 versus ≥70), and compared for disease-free survival (DFS), overall survival (OS), and adverse events (AEs). Multivariable Cox proportional hazards regression controlled for gender, T stage, and N stage. RESULTS: DFS benefits were shown for XELOX/FOLFOX versus LV/5-FU regardless of age or MC, although benefits were modestly attenuated for patients aged ≥70. Hazard ratios were 0.68 (P < 0.0001) and 0.77 (P < 0.014) for <70 and ≥70 age groups; 0.69 (P < 0.0001) and 0.59 (P < 0.0001) for Charlson Comorbidity Index ≤1 and >1 groups; and 0.70 (P < 0.0001) and 0.58 (P < 0.0001) for National Cancer Institute Combined Index ≤1 and >1 groups. OS was also significantly improved in all groups. Grade 3/4 serious AE rates were comparable across cohorts and MC scores and higher in patients aged ≥70. Oxaliplatin-relevant grade 3/4 AEs, including neuropathy, were comparable across ages and MC scores. CONCLUSIONS: Results further support consideration of XELOX or FOLFOX as standard treatment options for the adjuvant management of stage III CC in all age groups and in patients with comorbidities, consistent with those who were eligible for these clinical trials.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Ensayos Clínicos como Asunto , Neoplasias del Colon/tratamiento farmacológico , Neoplasias del Colon/mortalidad , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Quimioterapia Adyuvante , Neoplasias del Colon/patología , Comorbilidad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Tasa de Supervivencia , Adulto Joven
13.
Age Ageing ; 44(3): 471-7, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25687601

RESUMEN

BACKGROUND: previously, frailty indices were constructed using mostly subjective health measures. The reporting error in this type of measure can have implications on the robustness of frailty findings. OBJECTIVE: to examine whether frailty assessment differs when we construct frailty indices using solely self-reported or test-based health measures. DESIGN: secondary analysis of data from The Irish LongituDinal study on Ageing (TILDA). SUBJECTS AND METHODS: 4,961 Irish residents (mean age: 61.9 ± 8.4; 54.2% women) over the age of 50 years who underwent a health assessment were included in this analysis. We constructed three frailty indices using 33 self-reported health measures (SRFI), 33 test-based health measures (TBFI) and all 66 measures combined (CFI). The 2-year follow-up outcomes examined were all-cause mortality, disability, hospitalisation and falls. RESULTS: all three indices had a right-skewed distribution, an upper limit to frailty, a non-linear increase with age, and had a dose-response relationship with adverse outcomes. Levels of frailty were lower when self-reported items were used (SRFI: 0.12 ± 0.09; TBFI: 0.17 ± 0.15; CFI: 0.14 ± 0.13). Men had slightly higher frailty index scores than women when test-based measures were used (men: 0.17 ± 0.09; women: 0.16 ± 0.10). CFI had the strongest prediction for risk of adverse outcomes (ROC: 0.64-0.81), and age was not a significant predictor when it was included in the regression model. CONCLUSIONS: except for sex differences, characteristics of frailty are similar regardless of whether self-reported or test-based measures are used exclusively to construct a frailty index. Where available, self-reported and test-based measures should be combined when trying to identify levels of frailty.


Asunto(s)
Anciano Frágil , Evaluación Geriátrica , Autoinforme , Anciano , Envejecimiento , Femenino , Anciano Frágil/estadística & datos numéricos , Evaluación Geriátrica/métodos , Humanos , Masculino , Persona de Mediana Edad , Factores Sexuales
14.
Ir Vet J ; 68: 31, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26719792

RESUMEN

BACKGROUND: Bovine coronavirus is a primary cause of neonatal calf diarrhea worldwide, and is also associated with acute diarrhea in adult cattle during the winter season. There are no reports on molecular characterization of bovine coronavirus in Ireland, and little data exists apart from serological studies. FINDINGS: In this study, 11 neonatal (mean age 9 days) calf BCoV strains from the south of Ireland were collected over a one year period and characterized using molecular methods. The spike gene which encodes a protein involved in viral entry, infectivity and immune response shows the most variability amongst the isolates and was subsequently selected for in depth analysis. Phylogenetic analysis of the spike gene revealed that the Irish strains clustered with novel BCoV strains from Europe in a unique clade, possibly indicating lineage partitioning. Direct analysis of alignments identified amino acid changes in the spike protein unique to the Irish clade. CONCLUSION: Thus, monitoring of bovine coronavirus in Ireland is important as the current isolates in circulation in the south of Ireland may be diverging from the available vaccine strain, which may have implications regarding future BCoV vaccine efficacy.

15.
Skin Res Technol ; 20(2): 141-6, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-23869903

RESUMEN

BACKGROUND/PURPOSE: Vascular abnormalities play an acute role in the pathogenesis of psoriasis. In order to characterize vascular involvement in psoriasis and its regular clinical assessment in vivo, non-invasive high speed imaging with high resolution and high sensitivity is needed. METHODS: The correlation mapping optical coherence tomography (cmOCT) technique was used for in vivo microcirculation imaging of human forearm under normal and psoriatic conditions. The cmOCT technique developed by our group uses dense scanning OCT image acquisition and post-processing software based on correlation statistics. The frequency domain OCT system was used for imaging which acquires a 3D volume of 1024 × 1024 A-scans, each of 512 pixels deep in approximately 70 s. The cmOCT technique processes the resulting OCT volume within 116 s using a 7 × 7 kernel. RESULTS: 3D structural and functional (microcirculation) maps of the healthy tissue and the psoriatic plaque were obtained using the cmOCT technique. The presented results indicate that cmOCT allows not only the identification of the microvessels, but also produces more detailed microvascular networks showing how the blood vessels relate to each other in healthy tissue and within the plaque. The microcirculation pattern within the plaque is totally different from the healthy tissue. The distinct changes are also observed in vessel density, tortuosity, and orientation. CONCLUSION: The cmOCT provides high sensitivity and imaging speed for in vivo microcirculation imaging within the human skin under normal and diseased conditions.


Asunto(s)
Dermoscopía/métodos , Interpretación de Imagen Asistida por Computador/métodos , Microvasos/patología , Psoriasis/patología , Piel/irrigación sanguínea , Piel/patología , Tomografía de Coherencia Óptica/métodos , Adulto , Algoritmos , Femenino , Humanos , Aumento de la Imagen/métodos , Reconocimiento de Normas Patrones Automatizadas/métodos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Estadística como Asunto
16.
Nucleic Acids Res ; 40(14): e105, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22492509

RESUMEN

In recent years, evidence has emerged for the existence of many diverse types of RNA, which play roles in a wide range of biological processes in all kingdoms of life. These molecules generally do not, however, act in isolation, and identifying which proteins partner with RNA is a major challenge. Many methods, in vivo and in vitro, have been used to address this question, including combinatorial or high-throughput approaches, such as systematic evolution of ligands, cross-linking and immunoprecipitation and RNA immunoprecipitation combined with deep sequencing. However, most of these methods are not trivial to pursue and often require substantial optimization before results can be achieved. Here, we demonstrate a simple technique that allows one to screen proteins for RNA-binding properties in a gel-shift experiment and can be easily implemented in any laboratory. This assay should be a useful first-pass tool for assessing whether a protein has RNA- or DNA-binding properties, prior to committing resources to more complex procedures.


Asunto(s)
Ensayo de Cambio de Movilidad Electroforética/métodos , Proteínas de Unión al ARN/análisis , Heparina , Sondas ARN/química
17.
Eur J Obstet Gynecol Reprod Biol ; 296: 239-243, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38484615

RESUMEN

OBJECTIVES: To evaluate the association, if any, of homelessness or refuge accommodation on delivery and short term perinatal outcomes in an Irish tertiary maternity hospital. METHODS: A retrospective cohort study of 133 singleton pregnancies in women reporting to be homeless or living in refuge at their booking antenatal appointment between 2013 and 2022. Analysis compared sociodemographic characteristics and perinatal outcomes in this cohort to a reference population of 76,858 women with stable living arrangements. RESULTS: Women in the homeless/refuge population were statistically more likely to be single (75.2 % vs 39.5 %, p < 0.001), have an unplanned pregnancy (73.7 % vs 27.2 %, p < 0.001), report a history of psychiatric illness (42.9 % vs 22.4 %, p < 0.001), domestic violence (18.8 % vs 0.9 %, p < 0.001) alcohol consumption in pregnancy (3.0 % vs 0.8 %, p < 0.001) or smoking in pregnancy (41.3 % vs 9.7 %, p < 0.001). They were significantly more likely to have a preterm birth (adjusted OR 1.71 (1.01-2.87) p = 0.04). They also had a significantly lower median birth weight compared to the reference population (birthweight 3270 g vs 3420 g, p < 0.001). CONCLUSION: Women in the homeless and refuge population are more likely to experience poorer perinatal outcomes compared to women with stable living arrangements.


Asunto(s)
Personas con Mala Vivienda , Mujeres Embarazadas , Campos de Refugiados , Humanos , Femenino , Embarazo , Adulto , Estudios Retrospectivos , Irlanda , Resultado del Embarazo , Nacimiento Prematuro , Embarazo de Alto Riesgo
18.
PLoS One ; 19(4): e0298804, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38574013

RESUMEN

PURPOSE: The aim was to compare the probability of discharge after hip fracture surgery conditional on being alive and in hospital between patients mobilised within and beyond 36-hours of surgery across groups defined by depression. METHODS: Data were taken from the National Hip Fracture Database and included patients 60 years of age or older who underwent hip fracture surgery in England and Wales between 2014 and 2016. The conditional probability of postsurgical live discharge was estimated for patients mobilised early and for patients mobilised late across groups with and without depression. The association between mobilisation timing and the conditional probability of live discharge were also estimated separately through adjusted generalized linear models. RESULTS: Data were analysed for 116,274 patients. A diagnosis of depression was present in 8.31% patients. In those with depression, 7,412 (76.7%) patients mobilised early. In those without depression, 84,085 (78.9%) patients mobilised early. By day 30 after surgery, the adjusted odds ratio of discharge among those who mobilised early compared to late was 1.79 (95% CI: 1.56-2.05, p<0.001) and 1.92 (95% CI: 1.84-2.00, p<0.001) for those with and without depression, respectively. CONCLUSION: A similar proportion of patients with depression mobilised early after hip fracture surgery when compared to those without a diagnosis of depression. The association between mobilisation timing and time to live discharge was observed for patients with and without depression.


Asunto(s)
Fracturas de Cadera , Alta del Paciente , Humanos , Depresión/epidemiología , Fracturas de Cadera/cirugía , Fracturas de Cadera/diagnóstico , Modalidades de Fisioterapia , Inglaterra/epidemiología
19.
Br J Cancer ; 108(4): 784-90, 2013 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-23385733

RESUMEN

BACKGROUND: The ACCENT database, with individual patient data for 20 898 patients from 18 colon cancer clinical trials, was used to support Food and Drug Administration (FDA) approval of 3-year disease-free survival as a surrogate for 5-year overall survival. We hypothesised substantive differences in survival estimation with log-normal modelling rather than standard Kaplan-Meier or Cox approaches. METHODS: Time to relapse, disease-free survival, and overall survival were estimated using Kaplan-Meier, Cox, and log-normal approaches for male subjects aged 60-65 years, with stage III colon cancer, treated with 5-fluorouracil-based chemotherapy regimens (with 5FU), or with surgery alone (without 5FU). RESULTS: Absolute differences between Cox and log-normal estimates with (without) 5FU varied by end point. The log-normal model had 5.8 (6.3)% higher estimated 3-year time to relapse than the Cox model; 4.8 (5.1)% higher 3-year disease-free survival; and 3.2 (2.2)% higher 5-year overall survival. Model checking indicated greater data support for the log-normal than the Cox model, with Cox and Kaplan-Meier estimates being more similar. All three model types indicate consistent evidence of treatment benefit on both 3-year disease-free survival and 5-year overall survival; patients allocated to 5FU had 5.0-6.7% higher 3-year disease-free survival and 5.3-6.8% higher 5-year overall survival. CONCLUSION: Substantive absolute differences between estimates of 3-year disease-free survival and 5-year overall survival with log-normal and Cox models were large enough to be clinically relevant, and warrant further consideration.


Asunto(s)
Neoplasias del Colon/mortalidad , Modelos Estadísticos , Anciano , Ensayos Clínicos Fase III como Asunto , Neoplasias del Colon/tratamiento farmacológico , Neoplasias del Colon/cirugía , Terapia Combinada , Bases de Datos como Asunto , Supervivencia sin Enfermedad , Determinación de Punto Final , Fluorouracilo/administración & dosificación , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Ensayos Clínicos Controlados Aleatorios como Asunto
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