TABLE 6.
Study (reference) | Study quality rating | Effect size rating |
---|---|---|
Kerremans et al. (61) | Fair | Substantial |
Doern et al. (63) | Fair | Substantial |
Bruins et al. (62) | Fair | Substantial |
Trenholme et al. (60) | Fair | Moderate |
There were three studies for which the quality rating was fair and the effect size substantial and one study for which the quality rating was fair and the effect size moderate. There was consistency among them, and the overall strength of the studies was low.