Influence of gender on loss to follow-up in a large HIV treatment programme in western Kenya.

Objective: To determine the incidence of loss to follow-up in a treatment programme for people living with human immunodeficiency virus (HIV) infection in Kenya and to investigate how loss to follow-up is affected by gender.

Methods: Between November 2001 and November 2007, 50 275 HIV-positive individuals aged ≥ 14 years (69% female; median age: 36.2 years) were enrolled in the study.