Implementing Strategies at the Workplace Level to Increase Colorectal Cancer Screening Uptake in Argentina: A Controlled Interrupted Time-series Study.

Colorectal cancer is the third most common neoplasm. The immunochemical fecal occult blood test (iFOBT) is recommended for screening. The worksite setting has great potential to deliver preventive interventions. We aimed to design and evaluate the feasibility and potential impact of a multicomponent strategy in a workplace [Internal Revenue Agency of the Province of Buenos Aires (ARBA from its acronym in Spanish "Agencia de Recaudación de Buenos Aires") in Argentina].We used a quasi-experimental research design, a controlled interrupted time-series (ITS). The study involved: (i) a preintervention period (July 2015-September 2018); and (ii) an intervention period (October 2018-February 2019). We used semi-structured interviews and focus groups to design the intervention and to ensure feasibility and implementability. We fitted segmented linear regression models to evaluate changes in the monthly rates per 10,000 tests done in ARBA employees and controlling for the proportion of tests done in non-ARBA workers. A total of 1,552 ARBA employees aged 50 or more participated. Overall, iFOBT mean uptake rates were 16 times higher in the intervened during the five-month intervention period, remaining statistically significant after adjusting by the proportion of tests done in the control group (P < 0.001). The effect was higher in women aged 50 to 59 years. Activities were suspended due to the COVID-19 pandemic. A multifaceted workplace-based intervention proved to be feasible and acceptable to increase the uptake of colorectal cancer screening in employees of Argentina. Achieving high implementation rates requires building a healthy relationship with the partner organization, adding their values and views, and establishing agreed-upon mechanisms. PREVENTION RELEVANCE: Employee-facing multifaceted worksite cancer screening interventions are a valuable means to increase knowledge and utilization of workers. The controlled ITS showed that colorectal cancer screening mean uptake rates were 16 times higher in the intervened versus the control population during the intervention period, particularly among women aged 50 to 75.

Antecedentes familiares de cáncer de mama y colorrectal en una cohorte de población general en dos ciudades de Argentina / Family History of Breast and Colorectal Cancer in a Population-Based Cohort in two cities of Argentina

INTRODUCCIÓN: Los cánceres de mama (CM) y colorrectal (CCR) presentan una elevada carga de enfermedad en Argentina, por lo que el estudio de la epidemiología de estos tumores constituye una prioridad en salud pública. El objetivo del presente trabajo fue describir la prevalencia de antecedentes familiares de CM y CCR, y estimar la incidencia de los tumores en adultos de 35 a 74 años de dos ciudades de Argentina: Bariloche y Marcos Paz. MÉTODOS: En el marco de la cohorte prospectiva de población general CESCAS I (Estudio de detección y seguimiento de enfermedad cardiovascular y factores de riesgo en el Cono Sur de Latinoamérica), se recolectó información individual sobre antecedentes familiares de CM y CCR en una muestra representativa de las ciudades de Bariloche y Marcos Paz. Los casos de cáncer fueron investigados mediante documentación médica respaldatoria. RESULTADOS: Durante 2016-2017 se obtuvo información de 3245 participantes. El 8,4% de la población reportó antecedente familiar de CCR, y el 15,2% de las mujeres, de CM. La incidencia anual para el período 2011-2017 fue de 55,2/100 000 mujeres de 35 a 74 años (IC95%: 22,8-133,7) para CM y 8,5/100 000 adultos de 35 a 74 años (IC95%: 15,3-96,8) para CCR. CONCLUSIONES: Además de garantizar el acceso universal a los programas de tamizaje, se debe tener en cuenta la importancia de indagar sobre los antecedentes familiares de cáncer para identificar pacientes con riesgo aumentado, que requieren algoritmos particulares de detección temprana y vigilancia.

INTRODUCTION: Breast cancer (BC) and colorectal cancer (CRC) both present a high burden of disease in Argentina. Hence, studying the epidemiology of these tumors constitutes a public health priority. The objective of this study was to describe the prevalence of family history of BC and CRC and to estimate the incidence of these tumors in adults aged between 35 and 74 years from two cities in Argentina: Bariloche and Marcos Paz. METHODS: As part of the prospective population-based cohort CESCAS I (Study of detection and monitoring of cardiovascular disease and risk factors in the Southern Cone of Latin America), individual information on family history of BC and CRC was collected from a representative sample of the cities of Bariloche and Marcos Paz. Cancer cases were investigated using supporting medical documentation. RESULTS: During 2016-2017, information from 3245 participants was obtained. Family history of CRC was reported by 8.4% of the population, and 15.2% of women reported a family history of BC. The annual incidence for the 2011-2017 period was 55.2/100 000 women aged 35 to 74 years (95%CI: 22.8-133.7) for BC and 38.5/100 000 adults aged 35 to 74 years (95%CI: 15.3-96.8) for CRC.CONCLUSIONS: Besides guaranteeing universal access to screening programs, it is important to evaluate family history of cancer to identify patients with increased risk, who require specific early detection and surveillance algorithms.