Baseline demographic and behaviour characteristics by trajectory
Overall, among the 4898 persons who initiated PrEP, we identified four unique patterns of PrEP coverage during the first year of PrEP use classified as: (1) consistent high coverage, (2) high coverage, (3) moderate coverage, and (4) immediate discontinuation. The consistent high coverage group comprised 23.6% (1154) of the sample and demonstrated high levels of coverage throughout the 12‐month period. Clients in this group trajectory attended a median of 5 (IQR 4–7) follow‐up visits. The high coverage trajectory comprised 13.9% (682) of the sample and exhibited high coverage that persisted through the first month 6 followed by a rapid decline thereafter. Clients in this trajectory attended a median of 3 (IQR 2–4) follow‐up visits. The moderate coverage trajectory comprised 18.7% (918) of the sample and showed high coverage for only month 3 with coverage rapidly declining thereafter. Clients in this moderate trajectory attended a median of 2 (IQR 1–2) follow‐up visits. The immediate discontinuation group comprised 43.7% (2144) of the sample and exhibited immediate drop‐off in PrEP coverage with 0 (IQR 0–0) median number of visits attended after initiation, indicating that these were clients who initiated PrEP but never came back for a refill.The general characteristics of clients assigned to each group trajectory using the maximum probability assignment rule are presented in Table 