“…The differences in patient characteristic variables between the intervention and control groups were tested with chi-square tests [ 31 , 32 , 33 , 34 , 36 , 38 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ], t -tests [ 31 , 33 , 34 , 36 , 38 , 39 , 43 , 44 , 45 , 46 ], paired t -tests [ 37 ], or Fisher’s test [ 36 , 39 , 43 , 44 , 45 , 46 ]. Repeated measures analysis of variance with a heterogeneous compound symmetry covariance structure was used to test the differences in the changes between the groups, applying Mann–Whitney U tests [ 38 , 40 , 41 , 42 , 43 , 44 ].…”