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1.
BMC Cancer ; 18(1): 860, 2018 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-30176813

RESUMEN

BACKGROUND: Observational studies have reported conflicting results on the impact of mammography service screening programmes on the advanced breast cancer rate (ABCR), a correlation that was firmly established in randomized controlled trials. We reviewed and summarized studies of the effect of service screening programmes in the European Union on ABCR and discussed their limitations. METHODS: The PubMed database was searched for English language studies published between 01-01-2000 and 01-06-2018. After inspection of titles and abstracts, 220 of the 8644 potentially eligible papers were considered relevant. Their abstracts were reviewed by groups of two authors using predefined criteria. Fifty studies were selected for full paper review, and 22 of these were eligible. A theoretical framework for their review was developed. Review was performed using a ten-point checklist of the methodological caveats in the analysis of studies of ABCR and a standardised assessment form designed to extract quantitative and qualitative information. RESULTS: Most of the evaluable studies support a reduction in ABCR following the introduction of screening. However, all studies were challenged by issues of design and analysis which could at least potentially cause bias, and showed considerable variation in the estimated effect. Problems were observed in duration of follow-up time, availability of reliable reference ABCR, definition of advanced stage, temporal variation in the proportion of unknown-stage cancers, and statistical approach. CONCLUSIONS: We conclude that much of the current controversy on the impact of service screening programmes on ABCR is due to observational data that were gathered and/or analysed with methodological approaches which could not capture stage effects in full. Future research on this important early indicator of screening effectiveness should focus on establishing consensus in the correct methodology.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Mama/diagnóstico por imagen , Detección Precoz del Cáncer , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/patología , Europa (Continente)/epidemiología , Femenino , Humanos , Mamografía , Estadificación de Neoplasias
2.
Artículo en Inglés | MEDLINE | ID: mdl-28032381

RESUMEN

There is a lack of agreement about which routine invitation strategy should be adopted in colorectal cancer screening. We conducted an observational study to assess the impact of three invitation strategies on participation. Invitation records for the years 2005-2009 were evaluated. There were 2,234,276 invitations from 1,230,683 individuals. Among first invitations, participation associated with direct mailing of the faecal occult blood test kits was slightly lower (relative risk, RR 0.985; 95% confidence interval 0.979-0.990) than that of the reference invitation strategy, that is, the distribution of the test kits by pharmacies. In repeated invitations/previous non-responders, the participation associated with the direct mailing of the test kits was even lower (RR 0.914; 95% confidence interval 0.895-0.933) and this was also the case for the distribution of the test kits by primary care centres (RR 0.983; 95% confidence interval 0.971-0.995). In contrast, in repeated invitations/previous responders, the impact of primary care centres and direct mailing of the test kits was greater than the use of pharmacies, showing only modest RRs: 1.021 (95% confidence interval 1.019-1.023) and 1.029 (95% confidence interval 1.025-1.033) respectively. The faecal occult blood test mailing strategy modestly increased participation in previous responders.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Detección Precoz del Cáncer/métodos , Tamizaje Masivo/métodos , Sangre Oculta , Aceptación de la Atención de Salud/estadística & datos numéricos , Manejo de Especímenes/métodos , Anciano , Detección Precoz del Cáncer/estadística & datos numéricos , Heces/química , Femenino , Humanos , Italia , Masculino , Tamizaje Masivo/estadística & datos numéricos , Persona de Mediana Edad , Atención Primaria de Salud/métodos , Manejo de Especímenes/estadística & datos numéricos
4.
Ann Oncol ; 22(10): 2294-8, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21339385

RESUMEN

BACKGROUND: There is a need to improve the performance of urine cytology in bladder cancer diagnosis. We assessed the diagnostic performance of (i) telomerase activity detected by telomeric repeat amplification protocol (TRAP) assay, (ii) cytology and TRAP assay in parallel, (iii) cytology in parallel with the in-series combination of TRAP assay and FISH analysis, and (iv) the in-series combination of TRAP assay and FISH analysis. PATIENTS AND METHODS: Cross-sectional study of 289 consecutive patients who presented with urinary symptoms at a north Italian hospital between 2007 and 2008. All underwent cystoscopy and cytology evaluation, and conclusive results were available for TRAP assay and FISH analysis. RESULTS: Sensitivity and specificity were 0.39 and 0.83, respectively, for cytology; 0.66 and 0.72 for TRAP; 0.78 and 0.60 for the combination of cytology and TRAP; 0.78 and 0.78 for the combination of cytology, TRAP, and FISH; and 0.65 and 0.93 for the combination of TRAP and FISH. All differences versus cytology alone were significant (P ≤ 0.011). CONCLUSION: Compared with cytology alone, the combination of cytology, TRAP, and FISH provided the best trade-off between increase in sensitivity and loss in specificity, especially among non-bleeding patients, low-grade cancers, and early-stage cancers.


Asunto(s)
Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias de la Vejiga Urinaria/orina , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Cistoscopía , Femenino , Humanos , Hibridación Fluorescente in Situ , Masculino , Persona de Mediana Edad , Técnicas de Amplificación de Ácido Nucleico , Sensibilidad y Especificidad , Telomerasa/metabolismo , Telómero/genética , Neoplasias de la Vejiga Urinaria/genética , Neoplasias de la Vejiga Urinaria/patología
5.
Endoscopy ; 39(9): 813-7, 2007 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-17703391

RESUMEN

BACKGROUND AND STUDY AIMS: Biliary stents have been found to interfere with endoscopic ultrasound (EUS) tumor (T) and nodal (N) staging in patients with periampullary cancer. Our aim was to determine whether this also occurs in patients with pancreatic head cancer. PATIENTS AND METHODS: We studied a consecutive series of patients who were undergoing preoperative EUS for diagnosis and staging of suspected pancreatic cancer, some of whom had biliary stents in situ and some of whom did not. The main end point was the uni- and multivariate association of biliary stenting with T and N mis-staging by EUS. The surgical T and N stages were used as gold standards. RESULTS: A total of 65 patients were identified (19 with biliary stents in situ and 46 without). Surgical stage T4 was found more frequently in patients with stents (53% vs. 22%, P = 0.014). The T stage by EUS was correct in 85% of the patients without biliary stents and in 47% of the patients with stents. The frequency of mis-staging by EUS was significant only among patients with a biliary stent. The distribution by EUS N stage did not differ significantly from the surgical N-stage distribution in the two groups of patients. According to the multivariate analysis, patients with stents were 6.55 times more likely to be incorrectly T staged (95% confidence interval [CI] 1.69-25.49) and 3.71 times more likely to be incorrectly N staged (95% CI 1.11-12.45) than patients without stents. CONCLUSIONS: The results add support to the recommendation that EUS staging of pancreatic head neoplasms should be performed prior to stent placement.


Asunto(s)
Conductos Biliares , Endosonografía , Neoplasias Pancreáticas/diagnóstico por imagen , Stents/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Pancreáticas/patología , Reproducibilidad de los Resultados
6.
Eur J Cancer Prev ; 14(4): 337-44, 2005 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16030423

RESUMEN

Most studies of cancer risk related to agricultural exposures have focused on male operators. Cancer mortality in a cohort of 38 962 women engaged in agriculture (Province of Forlì, 1969-1993) was compared with that of the rest of the female residents using the ratio of age-standardized (Europe) mortality rates (ASR) with 95% confidence interval (CI). Moreover, mortality time trends in both subsets of the population were evaluated. The cohort yielded 798 439 person-years with 2397 cancer deaths. Total ASR ratio was 0.86 (95% CI 0.80-0.92). Only gastric cancer was associated with a significant but declining excess mortality (ASR ratio 1.26; 95% CI 1.11-1.43). Total ASR ratio decreased from 1.07 (95% CI 0.95-1.20) in 1969-1976 to 0.74 (95% CI 0.66-0.82) in 1985-1993. This resulted from a downward mortality trend restricted to the cohort. In particular, mortality from cancers of the oesophagus, stomach and colon/rectum decreased more steeply in the cohort. Mortality from liver cancer decreased only in the cohort. Mortality from cancers of the pancreas, lung, breast, bladder and skin melanoma remained stable in the cohort whilst increasing in the rest of the population. In conclusion, risk excesses previously reported were not confirmed. Agricultural workers qualified as a subset of the female population with atypical, favourable epidemiologic characteristics.


Asunto(s)
Agricultura , Contaminantes Ocupacionales del Aire/efectos adversos , Causas de Muerte , Neoplasias/mortalidad , Adulto , Distribución por Edad , Anciano , Estudios de Cohortes , Intervalos de Confianza , Femenino , Humanos , Incidencia , Italia/epidemiología , Persona de Mediana Edad , Neoplasias/diagnóstico , Oportunidad Relativa , Sistema de Registros , Medición de Riesgo
7.
Br J Cancer ; 92(1): 156-61, 2005 Jan 17.
Artículo en Inglés | MEDLINE | ID: mdl-15597100

RESUMEN

Screen-detected (SD) breast cancers are smaller and biologically more indolent than clinically presenting cancers. An often debated question is: if left undiagnosed during their preclinical phase, would they become more aggressive or would they only increase in size? This study considered a registry-based series (1988-1999) of 3329 unifocal, pT1a-pT3 breast cancer cases aged 50-70 years, of which 994 were SD cases and 2335 clinical cases. The rationale was that (1) the average risk of lymph node involvement (N+) is lower for SD cases, (2) nodal status is the product of biological aggressiveness and chronological age of the disease, (3) for any breast cancer, tumour size is an indicator of chronological age, and (4) for SD cases, tumour size is specifically an indicator of the duration of the preclinical phase, that is, an inverse indicator of lead time. The hypothesis was that the relative protection of SD cases from the risk of N+ and, thus, their relative biological indolence decrease with increasing tumour size. The odds ratio (OR) estimate of the risk of N+ was obtained from a multiple logistic regression model that included terms for detection modality, tumour size category, patient age, histological type, and number of lymph nodes recovered. A term for the detection modality-by-tumour size category interaction was entered, and the OR for the main effect of detection by screening vs clinical diagnosis was calculated. This increased linearly from 0.05 (95% confidence interval: 0.01-0.39) in the 2-7 mm size category to 0.95 (0.64-1.40) in the 18-22 mm category. This trend is compatible with the view that biological aggressiveness of breast cancer increases during the preclinical phase.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Anciano , Axila , Neoplasias de la Mama/patología , Femenino , Humanos , Metástasis Linfática , Mamografía , Persona de Mediana Edad , Oportunidad Relativa
8.
J Med Screen ; 10(3): 134-8, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-14561265

RESUMEN

OBJECTIVE: To compare self-referred screenees with respondents to invitation for main performance indicators of mammography screening. SETTING: First round of an organised, population-based screening programme in six districts of northern Italy. METHODS: The screening test was a two-view mammography. Eligible women aged 50-69 years were invited. Self-referred attendees were accepted if they were eligible for screening and had not yet been invited or had been invited >6 months before presentation. Age-specific performance indicators were compared with the calculation of their ratio and 95% confidence intervals (CIs). Total ratios were age standardised. In situ carcinomas were excluded. RESULTS: The eligible population was 183 542 women. There were 112 188 respondents to invitation and 20 280 self-referred attendees. Self-referral rate was inversely related to age. Performance indicators were as follows: recall rate, 5.6% for self-referred attendees vs 5.5% for respondents (ratio 1.02, 95% CI 0.96 to 1.08); total aspiration cytology rate, 37.3% vs 28.3% (1.37, 1.24 to 1.51); biopsy rate, 17.0 vs 12.6 x 1000 (1.51, 1.35 to 1.67); total detection rate, 10.7 vs 7.5 x 1000 (1.70, 1.48 to 1.94); detection rate of pT1 carcinoma, 7.0 vs 6.1 x 1000 (1.35, 1.14 to 1.59); detection rate of pT2-4 carcinoma, 3.5 vs 1.2 x 1000 (3.51, 2.75 to 4.43); false-positive rate, 4.5% vs 4.7% (0.93, 0.87 to 0.99); positive predictive value (PPV) of mammography, 19.1% vs 13.5% (1.59, 1.39 to 1.82); PPV of biopsy, 63.7% vs 60.6% (1.13, 0.98 to 1.29); detected:expected ratio, 5.02 vs 3.37 (1.49, 1.28 to 1.74). All differences were more pronounced among or restricted to women aged 50-54 years. CONCLUSIONS: Self-referred screenees were similar to respondents to invitation in main indicators of screening feasibility such as recall rate and PPV of biopsy, while showing important increases in detection rates and detected:expected ratios, especially among women aged 50-54 years.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Mamografía , Tamizaje Masivo , Participación del Paciente , Anciano , Neoplasias de la Mama/prevención & control , Servicios de Salud Comunitaria , Femenino , Humanos , Italia , Persona de Mediana Edad
9.
Eur J Cancer ; 39(12): 1776-82, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12888374

RESUMEN

The aim of this study was to examine the effects of mammographic screening programmes on stage-specific incidence of breast cancer. The study compared prescreening and screening periods in seven areas in Italy, primarily evaluating the first screening round. All 17617 breast cancers (16554 invasive, 1063 in situ) registered in women aged 40-79 years between 1988 and 1999 were analysed through age-standardised rates and Poisson regression models. For all areas, independent of the baseline rates, the introduction of screening increased incidence for invasive cancers overall and, more markedly, for early cancers (screening/prescreening ratio: range 1.07-1.47 and 1.23-1.82, respectively), modifying the pattern of age-specific rates. The multiple regression analysis showed that the percentage of cases diagnosed at screening explained most of the increase; a residual effect of diagnosis period (screening versus prescreening) suggested a role for 'spontaneous' early detection in ages outside of the screening programme. Advanced cases did not show consistent variations across the registries for those aged 40-79 years (range: 0.91-1.21), whereas a more coherent picture was observed for those aged 50-69 years. In one area, a moderate reduction in the number of 'advanced' cases in the second screening period was observed. For all stages, the age-specific incidence rates of cases diagnosed outside of the screening programme for the age groups 50-69 years were lower than the corresponding rates in the prescreening period, suggesting a shift from the usual clinical services to the screening programme. Our results confirmed the increase in early-stage cancers occurring at the start of screening, and substantially explained the rise in breast cancer incidence. In addition, our study confirms the importance of cancer registries in monitoring the effect of breast cancer screening and the validity, for this purpose, of the linkage between cancer registries and screening programme databases.


Asunto(s)
Neoplasias de la Mama/epidemiología , Tamizaje Masivo/estadística & datos numéricos , Adulto , Distribución por Edad , Anciano , Neoplasias de la Mama/prevención & control , Femenino , Humanos , Incidencia , Italia/epidemiología , Persona de Mediana Edad , Invasividad Neoplásica , Distribución de Poisson , Análisis de Regresión
10.
Pathologica ; 95(1): 9-21, 2003 Feb.
Artículo en Italiano | MEDLINE | ID: mdl-12735281

RESUMEN

This paper presents a computerised system for the monitoring of integrated cervical screening, i.e. the integration of spontaneous Pap smear practice into organised screening. The general characteristics of the system are described, including background and rationale (integrated cervical screening in European countries, impact of integration on monitoring, decentralised organization of screening and levels of monitoring), general methods (definitions, sections, software description, and setting of application), and indicators of participation (distribution by time interval since previous Pap smear, distribution by screening sector--organised screening centres vs public and private clinical settings--, distribution by time interval between the last two Pap smears, and movement of women between the two screening sectors). Also, the paper reports the results of the application of these indicators in the general database of the Pathology Department of Imola Health District in northern Italy.


Asunto(s)
Bases de Datos Factuales , Tamizaje Masivo/estadística & datos numéricos , Sistemas de Registros Médicos Computarizados , Prueba de Papanicolaou , Neoplasias del Cuello Uterino/prevención & control , Frotis Vaginal , Adolescente , Adulto , Anciano , Europa (Continente)/epidemiología , Femenino , Humanos , Italia/epidemiología , Tamizaje Masivo/organización & administración , Persona de Mediana Edad , Aceptación de la Atención de Salud , Prevalencia , Evaluación de Programas y Proyectos de Salud , Programas Informáticos , Factores de Tiempo , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/epidemiología , Frotis Vaginal/estadística & datos numéricos
11.
Eur J Cancer Prev ; 12(3): 223-8, 2003 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12771561

RESUMEN

The availability of published data from organized cervical screening programmes in southern Europe is scant. In the Italian area of Romagna, a first round of organized screening (based on a 3-yearly Pap smear for women aged 25-64 years) was initiated between December 1995 and January 1997 and was completed in an average of 42 months (range 36-48 months). The target population included 305 478 women. Of these, 253 949 were eligible and received a personal letter of invitation. Age-specific screening performance indicators were calculated according to standard methods. The response rate within 6 months of invitation was 49.1% (n=124 621). The total participation rate including women who presented later was 61.7% (n=156 735). The recall rate was 35.2 per 1000 of participants (n=5514). Positive cytology results were distributed as follows: atypical squamous cells of un-determined significance/atypical glandular cells of undetermined significance (ASCUS/AGUS) 40.1%, low-grade squamous intraepithelial neoplasia (LGSIL) 48.6%, high-grade squamous intraepithelial neoplasia (HGSIL) 10.7% and carcinoma 0.7%. Compliance to colposcopy follow-up was 93.4% (n=5149). The biopsy rate was 52.4% (n=2696) of patients undergoing colposcopy. The detection rate was 4.5 per 1000 of participants (n=707) for CIN2-3 and 0.5 (n=75) for invasive carcinoma. The proportion of microinvasive carcinomas was 36.0% (n=27). The positive predictive value for CIN2-3/carcinoma was 5.8% for the cytology reports of ASCUS/AGUS, 7.6% for those of LGSIL, 76.5% for those of HGSIL, and 100.0% for those of carcinoma (80.4% for combined HGSIL/carcinoma). The ratio of observed to expected (or prevalent to incident) cases of invasive carcinoma was 2.35 (95% confidence interval (CI) 1.85-2.95). In conclusion, most early results of the programme were compatible with an acceptable performance.


Asunto(s)
Carcinoma de Células Escamosas/diagnóstico , Tamizaje Masivo , Indicadores de Calidad de la Atención de Salud , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Factores de Edad , Biopsia , Carcinoma de Células Escamosas/patología , Colposcopía , Femenino , Estudios de Seguimiento , Humanos , Italia/epidemiología , Persona de Mediana Edad , Invasividad Neoplásica , Estadificación de Neoplasias , Prueba de Papanicolaou , Cooperación del Paciente , Prevalencia , Estadística como Asunto , Neoplasias del Cuello Uterino/patología , Frotis Vaginal , Salud de la Mujer , Displasia del Cuello del Útero/patología
12.
Pathologica ; 95(6): 436-43, 2003 Dec.
Artículo en Italiano | MEDLINE | ID: mdl-15080522

RESUMEN

In a previous issue of this journal, we presented the background, rationale, general methods, and indicators of participation of a computerised system for the monitoring of integrated cervical screening, i.e. the integration of spontaneous Pap smear practice into organised screening. We also reported the results of the application of those indicators in the general database of the Pathology Department of Imola Health District in northern Italy. In the current paper, we present the rationale and definitions of indicators of diagnostic performance (total Pap smears and rate of unsatisfactory Pap smears, distribution by cytology class reported, rate of patients without timely follow-up, detection rate, positive predictive value, distribution of cytology classes reported by histology diagnosis, and distribution of cases of CIN and carcinoma registered by detection modality) as well as the results of their application in the same database as above.


Asunto(s)
Diagnóstico por Computador , Procesamiento de Imagen Asistido por Computador , Tamizaje Masivo/métodos , Prueba de Papanicolaou , Neoplasias del Cuello Uterino/diagnóstico , Frotis Vaginal , Adolescente , Adulto , Archivos , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/epidemiología , Carcinoma de Células Escamosas/prevención & control , Femenino , Estudios de Seguimiento , Humanos , Italia/epidemiología , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Sistema de Registros/estadística & datos numéricos , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/prevención & control , Displasia del Cuello del Útero/diagnóstico , Displasia del Cuello del Útero/epidemiología , Displasia del Cuello del Útero/prevención & control
13.
Epidemiol Prev ; 25(3 Suppl): 28-31, 2001.
Artículo en Inglés, Italiano | MEDLINE | ID: mdl-11695197

RESUMEN

This article analyses the mortality data used for the calculation of relative survival, within the survival study of the cases incident in 1990-1994. The mortality data used in the 14 cancer registries come from ISTAT or other official sources. Results show higher death risk for all causes of death in men and lower in women. Risk increases with age, values are generally higher in the North and lower in the Centre and the South of the country. Consistently with mortality trends, the difference between observed and relative survival is higher in older age groups, and in men rather than women, with an increasing difference the further from the date of diagnosis.


Asunto(s)
Neoplasias/mortalidad , Sistema de Registros , Tasa de Supervivencia , Adolescente , Adulto , Anciano , Femenino , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad
14.
Ann Surg Oncol ; 8(9): 723-8, 2001 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11597014

RESUMEN

BACKGROUND: The diffusion of pelvic and para-aortic lymphadenectomy for the surgical pathological staging of endometrial carcinoma into clinical practice has been evaluated only with questionnaire surveys of gynecological oncologists. No population-based information is available. METHODS: In this study of operable endometrial carcinoma cases registered by the population-based Romagna Cancer Registry (northern Italy) between 1987 and 1994, the association of demographic (age, time period, place of birth, place of residence, place of treatment, and marital status) and pathological factors (histological type, tumor grade, myoinvasion, and extension of disease to cervix, serosa, adnexa, and vagina) with the probability of lymphadenectomy was evaluated by multiple logistic regression analysis. RESULTS: Of the 300 potentially eligible cases, sufficient information was obtained for 276 (92%; median age, 63 years; range, 33-87 years). No case of para-aortic lymphadenectomy was observed. Pelvic lymphadenectomy was performed in 86 (31%) cases. The probability of pelvic lymphadenectomy was related to tumor grade (positive association), place of treatment, and marital status. All other variables, including myoinvasion and extension of disease to the cervix and beyond the uterus, had no effect whatsoever. CONCLUSIONS: The most likely interpretations of results include poor acceptance of current surgical pathological staging criteria and insufficient use of standard diagnostic techniques for preoperative and intraoperative assessment of myoinvasion and extrauterine spread.


Asunto(s)
Adenocarcinoma de Células Claras/patología , Carcinoma Adenoescamoso/patología , Neoplasias Endometriales/patología , Escisión del Ganglio Linfático/estadística & datos numéricos , Adenocarcinoma de Células Claras/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Análisis de Varianza , Carcinoma Adenoescamoso/cirugía , Neoplasias Endometriales/cirugía , Femenino , Humanos , Italia , Modelos Logísticos , Ganglios Linfáticos/patología , Persona de Mediana Edad , Estadificación de Neoplasias , Pelvis , Sistema de Registros , Factores de Riesgo
15.
Melanoma Res ; 11(5): 483-9, 2001 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11595885

RESUMEN

This study addressed the independent association of past and recent sun exposure indicators and other host factors with the prevalence of major digital epiluminescence microscopy (D-ELM) features such as the pigment network (PN), brown globules (BGs), and pigment dots (PDs) in acquired melanocytic naevi. In a consecutive series of 189 patients (median age 28 years; range 10-73 years) with one or more naevi as diagnosed on D-ELM, we evaluated 35 solitary lesions and one naevus randomly selected from each of the 154 patients with multiple lesions. D-ELM images were classified for the presence or absence of PN, BGs and PDs on two blind readings. Data analysis was based on multiple logistic regression. Patient age was positively associated with PN and inversely associated with BGs. The probability of PN increased with more than 110 days since last exposure to the sun, whereas a rapid decrease for BGs and PDs was observed after approximately 1 month. PDs were significantly more likely among lesions with 6-10 h/day of recent exposure. Sex, total lifetime hours of exposure, sunbed use, skin type and colour of hair exerted no effect. In conclusion, major D-ELM features appeared to differ in their relationship with sun exposure indicators.


Asunto(s)
Microscopía/métodos , Nevo Pigmentado/epidemiología , Nevo Pigmentado/patología , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/patología , Luz Solar/efectos adversos , Adolescente , Adulto , Anciano , Niño , Femenino , Humanos , Modelos Logísticos , Mediciones Luminiscentes , Masculino , Melanocitos/patología , Melanocitos/efectos de la radiación , Persona de Mediana Edad , Análisis Multivariante , Nevo Pigmentado/etiología , Factores de Riesgo , Neoplasias Cutáneas/etiología , Pigmentación de la Piel/efectos de la radiación , Factores de Tiempo , Rayos Ultravioleta/efectos adversos
16.
Dermatol Clin ; 19(2): 285-97, 2001 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-11556237

RESUMEN

Based on current information, the expression of ELM features as a function of tumor thickness seems to be consistent not only with the definition of main ELM features but also with the model of histogenesis of the disease. The published data and observations, however, are insufficient. The relationship between tumor thickness and the ELM picture needs to be the subject of further research.


Asunto(s)
Diagnóstico por Imagen/instrumentación , Melanoma/patología , Neoplasias Cutáneas/patología , Dermatología , Humanos
17.
Diagn Cytopathol ; 24(1): 21-7, 2001 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-11135464

RESUMEN

Expectant follow-up based on early repeat Papanicolaou (Pap) smear(s) is the most commonly recommended management of patients with atypical squamous cells of undetermined significance (ASCUS). In a cervical cytology laboratory in northern Italy, a retrospective study of 1,087 ASCUS patients aged 25-64 was conducted. The primary aim was to assess the actual probability of early repeat Pap smear and associated factors. Univariate comparisons were based on the actuarial method. Multivariate associations were evaluated by Cox regression analysis. The cumulative probability of early repeat Pap smear was 0.11 at 6 mo, 0.29 at 12 mo, and 0.41 at 24 mo, with a multivariate association with screening sector (relative hazard, 3.0 for public offices and 2.8 for private offices vs. organized screening) and previous Pap smear history. Laboratory recommendation, patient age, place of birth, place of residence, marital status, and occupation exerted no independent effect. In conclusion, the probability of early repeat Pap smear was poor and independent of demographic and social factors. The frequency of follow-up failures emerged as a major problem with ASCUS management.


Asunto(s)
Prueba de Papanicolaou , Cooperación del Paciente , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Frotis Vaginal/métodos , Adulto , Femenino , Estudios de Seguimiento , Humanos , Italia/epidemiología , Tamizaje Masivo , Persona de Mediana Edad , Estudios Retrospectivos , Análisis de Supervivencia , Tasa de Supervivencia , Displasia del Cuello del Útero/mortalidad , Neoplasias del Cuello Uterino/mortalidad , Frotis Vaginal/clasificación
18.
Eur J Cancer Prev ; 9(4): 269-74, 2000 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-10958330

RESUMEN

The integration of routine Pap smear practice based on self-referral into an organized programme based on personal invitation is the recommended approach to cervical cancer screening. In this study, the cytology archive of the integrated cervical screening programme implemented in the Faenza district (northern Italy) was used to compare the population of women responding to invitation with that of self-referred women for the cumulative probability of early (< 36 months) repeat Pap smear after a negative result. Between 1995 and 1998, women aged 25-64 living in five municipalities of the district were targeted by the first round of the programme. Eligible for the study were 2356 women responding to invitation for screening and 2221 women not invited because of self-referral for Pap smear at any other setting. The probability of early repeat Pap smear was estimated by the life table method. Differences were evaluated by the Gehan test. Multivariate determinants were assessed by the Cox regression analysis. At 36 months' follow-up, the cumulative probability of early repeat Pap smear was 44% among self-referred women and 6% among women responding to invitation (relative hazard = 4.8). For self-referred women, the probability was related to age (with a peak at 35-44 years), previous Pap smear history and municipality of residence. Among women responding to invitation, only an inverse association with age was demonstrated. In conclusion, the observed differences in overall probability and determinants of early repeat Pap smear between the two screening populations provided important information on Pap smear usage in the total target population.


Asunto(s)
Tamizaje Masivo/métodos , Prueba de Papanicolaou , Neoplasias del Cuello Uterino/diagnóstico , Frotis Vaginal , Adulto , Factores de Edad , Femenino , Humanos , Italia , Persona de Mediana Edad , Probabilidad , Análisis de Regresión
19.
Acta Obstet Gynecol Scand ; 79(7): 586-92, 2000 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-10929960

RESUMEN

BACKGROUND: Most studies of cervical conization have considered the frequency of complications and the outcome of follow-up. The determinants of cone margin positivity have been inadequately described. In a series of CIN patients undergoing conization-equivalent electrosurgical procedure, we evaluated the factors associated with (i) any cone margin involvement, and (ii) endocervical margin involvement (with or without other locations) as contrasted with all other conditions. METHODS: Study population included 718 patients. Potential determinants of margin involvement were or were treated as categorical. Univariate analysis was based on the chi-square test. Multivariate associations were estimated by multiple logistic regression models. RESULTS: Cone margin involvement was observed in a total of 195 patients (27%). In univariate analysis, the frequency was positively related to histologic grade, time period, lesion size, and cone width and depth. In multivariate analysis, histology diagnosis and time period retained a strong association. The effect of lesion size was of borderline significance. The endocervical location emerged as a multivariate determinant of margin positivity. The effect of cone width and depth was not confirmed. Endocervical margin involvement was observed in 98 cases (14%). In univariate analysis, the frequency was positively associated with histologic grade, time period, and age, and inversely related to the visibility of the squamous-columnar junction. Multivariate analysis confirmed the strong effect of histology diagnosis and time period. The association with age and visibility of the squamous-columnar junction was weaker. CONCLUSIONS: Histology diagnosis and time period were the strongest determinants of cone margin involvement. Endocervical margin positivity was also related to patient age and visibility of the squamous-columnar junction. Cone width and depth had no protective effect.


Asunto(s)
Cuello del Útero/patología , Electrocirugia , Displasia del Cuello del Útero/cirugía , Neoplasias del Cuello Uterino/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Conización , Femenino , Humanos , Persona de Mediana Edad , Análisis Multivariante , Invasividad Neoplásica , Neoplasias del Cuello Uterino/patología , Displasia del Cuello del Útero/patología
20.
Public Health ; 113(5): 237-42, 1999 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-10557118

RESUMEN

BACKGROUND: The poor accuracy of the clinical examination of pigmented skin lesions (PSLs) is a major limitation of secondary prevention strategies for cutaneous melanoma (CMM). In the last few years, the epiluminescence microscopy (ELM) technique has been used increasingly as an adjunct to clinical examination in the dermatology practice. Although the question of training has emerged as a priority, the diffusion, the effects, and the correlates of educational programmes in ELM have seldom been studied. METHODS: Thirty ELM images of PSLs (11 CMMs, 14 melanocytic nevi (MN), and 5 nonmelanocytic lesions (NMLs) each matched with the corresponding clinical or plain photographic image were independently diagnosed before and after a one-day workshop by 83 Italian dermatologists participating in a nationwide educational programme on ELM. The original histology diagnosis was assumed as a gold standard. The overall effect of training on a set of accuracy measures by PSL type was evaluated. The association of the professional sector (public/private), number of years of general experience in dermatology (1-10/>10), average weekly number of PSLs seen (< or =10/11-20/>20), routine use of ELM (no/yes), and area of residence (northern/southern Italy) with the mean number of PSLs correctly diagnosed before and after training was evaluated with the general factorial analysis of variance. The factors associated with improvement between the two tests were evaluated with the analysis of variance for repeated measures. RESULTS: Compared with pretraining data, the average percentage of exact diagnosis increased significantly for all PSLs (CMMs, 72% vs 55%; MN, 68% vs 64%; NMLs, 67% vs 58%; total lesions combined, 69% vs 60%). Baseline as well as final accuracy were independent from the professional sector and the years of experience but were greater among those subjects who reported >20 PSLs per week compared with the reference group (< or =10 PSLs). The routine use of ELM was associated with a slight advantage in pretraining accuracy. The area of residence was the strongest determinant of baseline as well as final accuracy. The effect of training was independent from all factors studied with the exception of the area of residence with a 13% increase in the frequency of exact diagnosis in northern Italy (from 66-79%) and 6% in southern Italy (from 55-61%). CONCLUSIONS: Though insufficient in absolute terms, a measurable increase in ELM accuracy can be achieved even with intense training sessions of short duration. Medical education to ELM in southern Italy should be a priority.


Asunto(s)
Dermatología/educación , Melanoma/diagnóstico , Microscopía/métodos , Trastornos de la Pigmentación/diagnóstico , Neoplasias Cutáneas/diagnóstico , Competencia Clínica , Diagnóstico Diferencial , Educación Médica Continua/normas , Humanos , Italia , Evaluación de Programas y Proyectos de Salud
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