Estimated Unadjusted Hazard Ratios (95% CI) of Time-Updated Covariate Effects on State Transitions, by Misclassification Assumptions and by IAC-Exclusion Window (≤180 vs.≤30 days).

1.IRC: infrared coagulation. 2.IAC exclusion window: Cases of invasive anal carcinoma (IAC) diagnosed within 180 or 30 days of the first cytology result, respectively, were considered prevalent cases and were therefore excluded from analysis. 3.State Transitions: HSIL: high grade squamous intraepithelial lesion; IAC: invasive anal carcinoma. 4.ART: antiretroviral therapy.