TY - JOUR AU - Bravo, Luis Eduardo AU - Garcia, Luz Stella AU - Collazos, Paola AU - Holguin, Jorge Alirio AU - Soerjomataram, Isabelle AU - Miranda-Filho, Adalberto PY - 2023/05/04 Y2 - 2024/03/28 TI - Trends in long-term cancer survival in Cali, Colombia: 1998-2017 JF - Colombia Medica JA - Colomb Med VL - 53 IS - 1 SE - Original Articles DO - 10.25100/cm.v53i1.5082 UR - https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/5082 SP - e2035082 AB - <div><strong>Background:</strong></div><div>Population-based cancer survival is an indicator of the effectiveness of cancer&nbsp;services that reflects the survival of all cancer patients in the population, regardless&nbsp;of socioeconomic status and disease characteristics.</div><div>&nbsp;</div><div><strong>Aim:</strong></div><div>Provision of an up-to-date survival estimate of patients recorded within Cali&nbsp;Population Cancer Registry (RPCC) in 1998-2017. As a second objective, results will&nbsp;be compared with those reported by the CONCORD study for cancers prioritized by&nbsp;the current Ten-Year Cancer Control Plan of Colombia, 2012-2021.</div><div>&nbsp;</div><div><strong>Methods:</strong></div><div>Adult cancer cases (aged 15 to 99 years) for nine cancer types diagnosed between&nbsp;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&nbsp;results for the period 1995- 2014 were compared with those reported by the CONCORD&nbsp;study for the following locations: stomach (C16), breast (C50), cervix (C53), prostate</div><div>(C61), and lung (C33-34).</div><div>&nbsp;</div><div><strong>Results:</strong></div><div>Five-year survival estimates for breast and prostate cancers improved ten percentage&nbsp;points through 2007 (70.8 to 81.1 for breast and 79.9 to 90.2 for prostate) and remained&nbsp;stable during 2008-2017. For cervical cancer, survival estimates has remained stable&nbsp;for the last two decades at 53%. For stomach cancer and lung cancer, five-year NS was&nbsp;lower than 25% over the study period. For colorectal cancer, survival estimates increased&nbsp;from 37.9% in 1998-2002 to 54.8% in 2013-2017. Compared to previous 5-year survival&nbsp;estimates of cases diagnosed in 2010-2014, the estimates in this study are significantly&nbsp;higher than those obtained by CONCORD. Survival estimates of patients diagnosed in&nbsp;1995-2009 showed no difference to CONCORD study.</div><div>&nbsp;</div><div><div><strong>Conclusions:</strong></div><div>Periodic update of vital status and date of last contact reduces bias in survival estimates&nbsp;in population-based cancer registries with passive follow-up.</div></div><p>&nbsp;</p> ER -