Fidelity of the implementation of the linkage-to-care intervention
death
The fidelity of the linkage-to-care intervention implementation was first described using crude numbers of people with at least one contact attempt (adherence) and one re-referral through phone calls or/and home visits (exposure). Conditional probabilities of being tracked (first contact attempt) and of being re-referred (first re-referral) since the first home-based referral were then described using Kaplan-Meier estimators censoring for death, out-migration, and end of data follow-up.Factors associated with being re-referred at the first tracking attempt were identified using Chi-square test (or Fisher’s exact test when small sample size); variables considered were sex, age, occupation, wealth index, day of the week and time of day at which the first tracking attempt was made.