| Control group | Intervention group | Modelb | P- value | Effect size | ||
---|---|---|---|---|---|---|---|
n = 171 | n = 141 | ||||||
 | Mean | (SD) | Mean | (SD) | Adjusted mean difference (95 % CI) | P | d |
FES-I | Â | Â | Â | Â | Â | Â | Â |
 Baseline | 35.47 | (9.4) | 35.70 | (10.4) | - | - | - |
 5-month follow-up | 35.30 | (10.4) | 31.73 | (10.4) | −3.53 (−∞ – -2.15) | < .001 | .34 |
 12-month follow-up | 35.86 | (11.1) | 31.98 | (10.9) | −3.92 (−∞ – -2.52) | < .001 | .35 |