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Table 1 Data to be extracted from eligible studies

From: Colorectal cancer among persons with HIV: protocol for a systematic review and meta-analysis

  Data
Publication details Year of publication, language of publication, country in which study conducted
Design Type of study, study temporality, population-based, type of center where study was conducted, duration of study, follow-up time
Study participants Age, sex, number of persons with HIV, number of control subjects, description of persons with HIV (years diagnosed with HIV, HIV acquisition risk factors, CD4+ cell count and viral load at time of colorectal cancer diagnosis, percentage receiving antiretroviral therapy), description of control population (healthy individuals, general population, other underlying medical condition), attrition and reason(s) for loss to follow-up, comorbid illness
Outcome measures Standardized incidence ratio of colorectal cancer, numbers of observed and expected cases, stage of diagnosis, site of cancer, screening/diagnostic modality (fecal occult blood test, colonoscopy, sigmoidoscopy, other), number of deaths (total and cancer related), standardized mortality ratio, treatment received, treatment outcomes