First author & reference | Selection | Comparability | Outcome | Score | ||||
---|---|---|---|---|---|---|---|---|
Representativeness of the sample | Sample size justified | Non-respondents | Ascertainment of exposure (max**) | Confounding controlled (max**) | Outcome assessment (max**) | Statistics | Total | |
Ballard-Kang [13] | * | * | * | – | * | ** | * | 7/10 |
Miner [14] | * | * | na | ** | na | ** | * | 7/10 |
Rosano [15] | * | * | – | ** | ** | ** | * | 9/10 |
Kentoffio [16] | * | * | na | ** | ** | ** | * | 9/10 |
Morrison [17] | * | * | na | ** | ** | ** | * | 9/10 |
Hargreaves [18] | * | * | * | * | ** | * | * | 8/10 |
Fassaert [19] | * | * | * | ** | ** | * | * | 9/10 |
Geltman [20] | * | * | * | ** | ** | * | * | 9/10 |
Cooke [21] | * | – | – | ** | na | * | – | 4/10 |
Weine [22] | – | * | – | ** | ** | * | * | 7/10 |
Brisset [23] | * | * | – | ** | – | * | * | 6/10 |
Pottie [24] | * | * | * | ** | na | * | * | 7/10 |