Table 5.

Critical appraisal of studies.

Study authors (citation)	Rating
González-Chica et al. (48)	Good
Hossain et al. (50)	Good
Kusuma et al. (43)	Good
Naggan et al. (52)	Good
Sachdev et al. (44)	Good
Armelini and Gonzalez (38)	Fair
Ashraf et al. (39, 46)	Fair
Brown et al. (40)	Fair
Cohen et al. (41)	Fair
Forman et al. (47)	Fair
Gray et al. (49)	Fair
Jalil et al. (51)	Fair
Serdula et al. (53)	Fair
Almroth (37)	Poor
Almroth and Bidinger (36)	Poor
Almroth et al. (45)	Poor
Ashraf et al. (39, 46)	Poor
Goldberg and Adams (42)	Poor