First author & reference | Â | Comparability | Outcome | Â | Â | Â | |||
---|---|---|---|---|---|---|---|---|---|
Representativeness of sample size | Sample size justified | Non- Response rate | Ascertainment of the exposure (max **) | Cofounding controlled max(**) | Outcome assessment (max **) | Statistics | Total Score (max 10*) | Overall quality | |
Abebaw et al. | * | * | * | * | ** | ** | * | 9* | Good |
Gizaw et al. | * | * | * | * | ** | ** | * | 9* | Good |
Girma et al. | - | - | * | * | ** | ** | * | 7* | Good |
Agmassie et al. | * | * | * | * | * | ** | * | 8* | Good |
Nigussie | * | - | * | * | * | ** | * | 7* | Good |
Bireda et al. | * | * | * | * | ** | ** | * | 9* | Good |