@article{Bravo_Garcia_Collazos_Holguin_Soerjomataram_Miranda-Filho_2023, title={Trends in long-term cancer survival in Cali, Colombia: 1998-2017}, volume={53}, url={https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/5082}, DOI={10.25100/cm.v53i1.5082}, abstractNote={<div><strong>Background:</strong></div> <div>Population-based cancer survival is an indicator of the effectiveness of cancer services that reflects the survival of all cancer patients in the population, regardless of socioeconomic status and disease characteristics.</div> <div> </div> <div><strong>Aim:</strong></div> <div>Provision of an up-to-date survival estimate of patients recorded within Cali Population Cancer Registry (RPCC) in 1998-2017. As a second objective, results will be compared with those reported by the CONCORD study for cancers prioritized by the current Ten-Year Cancer Control Plan of Colombia, 2012-2021.</div> <div> </div> <div><strong>Methods:</strong></div> <div>Adult cancer cases (aged 15 to 99 years) for nine cancer types diagnosed between 1998 and 2017, with follow-up to 2018, were obtained from the RPCC. The 5-year age-standardized net survival estimates (NS) were estimated using the Pohar-Perme. The results for the period 1995- 2014 were compared with those reported by the CONCORD study for the following locations: stomach (C16), breast (C50), cervix (C53), prostate</div> <div>(C61), and lung (C33-34).</div> <div> </div> <div><strong>Results:</strong></div> <div>Five-year survival estimates for breast and prostate cancers improved ten percentage points through 2007 (70.8 to 81.1 for breast and 79.9 to 90.2 for prostate) and remained stable during 2008-2017. For cervical cancer, survival estimates has remained stable for the last two decades at 53%. For stomach cancer and lung cancer, five-year NS was lower than 25% over the study period. For colorectal cancer, survival estimates increased from 37.9% in 1998-2002 to 54.8% in 2013-2017. Compared to previous 5-year survival estimates of cases diagnosed in 2010-2014, the estimates in this study are significantly higher than those obtained by CONCORD. Survival estimates of patients diagnosed in 1995-2009 showed no difference to CONCORD study.</div> <div> </div> <div> <div><strong>Conclusions:</strong></div> <div>Periodic update of vital status and date of last contact reduces bias in survival estimates in population-based cancer registries with passive follow-up.</div> </div> <p> </p>}, number={1}, journal={Colombia Medica}, author={Bravo, Luis Eduardo and Garcia, Luz Stella and Collazos, Paola and Holguin, Jorge Alirio and Soerjomataram, Isabelle and Miranda-Filho, Adalberto}, year={2023}, month={May}, pages={e2035082} }