Table 2.
Study | Mean Difference | Lower CI | Upper CI | p | I 2 |
---|---|---|---|---|---|
Omitting Fojecki et al. (2017) | 2.94 | 1.50 | 4.39 | <.0001 | 48 |
Omitting Kalyvianaki and Hatzichristou (2017) | 1.02 | 0.03 | 2.00 | .04 | 84 |
Omitting Kitrey et al. (2016) | 0.69 | −0.26 | 1.64 | .15 | 40 |
Omitting Yee et al. (2014) | 1.10 | 0.16 | 2.05 | .02 | 84 |
Note. CI = confidence interval.