Figure 4.

Number of studies by reported outcome measures and target population (general population or health care professionals). The reported outcome measures in included studies have been represented as absolute and proportional values. A total of 25 studies (14 targeting health care professionals and 13 targeting general population) were included in this analysis. Some studies reported multiple outcome measures. Two studies investigated interventions targeting both health care professionals and the general population.*, Includes treatment access, referrals, survival/abandonment, and detection rate. **, Number of studies totals more than 25 because of some studies reporting on more than one intervention. Abbreviation: HCP, health care professional.