1266. Cancer among HIV-Positive Patients in Cali, Colombia: A Retrospective Hospital-Based Study

BACKGROUND: Cancer has been a significant feature of the HIV epidemic from the beginning, being the most frequent Kaposi sarcoma (KS) and hematolymphoid malignancies. However, the behavior of these two diseases is limited in our context. The study aimed to determine the trends of cancer among HIV/AIDS patients between 2011 and 2016. METHODS: A retrospective hospital-based study was conducted at Fundación Valle del Lili, Cali, Colombia. The study included HIV-positive patients diagnosed with cancer after infection. HIV registry was cross-linked with a population-based cancer registry to obtain IARC/WHO ICD-O-3 classification and follow-up information on all patients. A descriptive analysis of the variables was performed. Survival analysis was carried out using the Kaplan–Meier method. Differences between cancer survival were assessed through the log-rank test. RESULTS: From 2,051 HIV-positive patient’s records between 2011 and 2016, 95 patients were diagnosed with cancer after HIV infection. The median age was 43 years (IQR=33–57), and 88% were male. Types of cancer were: Kaposi’s sarcoma 17%, hematolymphoid malignancies 21% and other cancer 62%. The probability of cancer diagnosis after HIV diagnosis was 36.26% (CI 95% [26.53–46.05]) at one-year follow-up for all malignancies. Overall survival of the patients was 77.41% (CI 95% [64.76–86]) at 5 years follow-up, since HIV diagnostic. Hematolymphoid malignancies and KS survival were 50% (CI 95% [20.85–73.61]) and 65.63% (CI 95% [35.80–84.14]) at 5 years follow-up, respectively. There was a statistically significant difference between KS, hematolymphoid and other cancer cases survival (P = 0.0178). CONCLUSION: This study showed the role of HIV in cancer survival for KS and hematolymphoid malignancies mainly, in a developing country. It is necessary to join efforts in our context to reduce HIV cases and associated malignancies. DISCLOSURES: All authors: No reported disclosures.