Data merging procedures
| Variable | Lester et al | Pop-Eleches et al | Mbuagbaw et al | IPD* Meta-analysis |
|---|---|---|---|---|
| Age | Years | Years | Years | Years |
| Gender | Male/female | Male/female | Male/female | Male/female |
| Level of education | No formal education | None | None | None |
| Lower primary Upper primary | Completed primary | Primary | Primary | |
| Lower secondary Upper secondary High school | Completed secondary | Secondary | Secondary or higher | |
| Middle college and University | University | |||
| Duration on ART | Months | Months | Months | Months |
| Intervention | SMS short daily | SMS short daily | ||
| SMS short weekly | SMS short weekly | SMS short weekly | ||
| SMS long daily | SMS long daily | |||
| SMS long weekly | SMS Long weekly | SMS long weekly | ||
| Control | No SMS | No SMS | No SMS | No SMS |
| Adherence | Yes (>95 at 6 & 12 months) | Yes (≥95% from 12 to 48 weeks) | Yes (>95% at 6 months) | Yes (as reported in studies) |
| Final outcome | Lost to follow-up | Lost to follow-up | Lost to follow-up | Lost to follow-up |
| Death | Death | Death | Death | |
| Withdrew | Withdrew | Withdrew | Withdrew | |
| Transferred out | Transferred out | Transferred out | Transferred out |
*Individual patient data.
SMS, short message service.