Table 2 Estimated and predicted health care worker time for providing PrEP in nurse-led primary care clinics in Eswatini

PrEP activity (estimated minutes)

 Pre-PrEP counseling

3.0 (− 1.3–7.2)

4.3 (− 0.14–8.7)

 HIV risk assessment

1.8 (− 2.6–6.1)

3.3 (− 1.4–7.9)

 PrEP eligibility screening

3.2 (0.0042–6.4)^*

3.8 (0.37–7.2)^*

 PrEP initiation

8.9 (4.8–13)^***

11 (6.9–16)^***

 Follow-up counseling

4.1 (1.2–7.0)^**

4.7 (1.7–7.7)^**

 Blood testing

3.2 (1.3–5.0)^***

4.0 (1.8–6.2)^***

Covariates (estimated minutes)

 Number of provided PrEP activities

− 1.5 (− 2.7 to − 0.30)^*

 Interrupted workflow

3.4 (0.69–6.0)^*

Fixed time cost (estimated minutes)

 Constant

8.8 (6.1–12)^***

8.9 (5.8–12)^***

PrEP clinic visit (predicted minutes)

 PrEP initiation visit

29 (25–32)^***

28–32 (25–36)^***,†

 PrEP follow-up visit

29 (25–32)^***

15–18 (12–21)^***,†

Model statistics

 Adjusted R²

0.24

0.26

 AIC/BIC

1894/1920

1891/1924