Efficacy evaluation of an affectionate touch-based psychological intervention program for in vitro fertilization-embryo transfer patients: A controlled trial

Table 6 Mental health status of males, mean ± SE

Time	Control group	Intervention group	Within-group change (control) β (95%CI); P value	Within-group change (intervention) β (95%CI); P value	Group-time interaction difference Δ (95%CI)	Interaction P value	Effect size (Cohen’s d)
Depression
Pre-intervention	6.27 ± 0.48	6.23 ± 0.48
Post-intervention	5.04 ± 0.78	3.92 ± 0.59	-1.22 (-3.00 to 0.55); P = 0.179	-2.31 (-3.51 to -1.12); P < 0.001	-1.09 (-3.23 to 1.05)	0.319	0.2
Anxiety
Pre-intervention	6.07 ± 0.33	5.94 ± 0.36
Post-intervention	5.17 ± 0.51	3.31 ± 0.40	-0.90 (-2.14 to 0.34); P = 0.157	-2.63 (-3.57 to -1.68); P < 0.001	-1.73 (-3.29 to -0.17)	0.03	0.44
Stress
Pre-intervention	10.34 ± 0.38	10.37 ± 0.41
Post-intervention	8.13 ± 0.61	6.06 ± 0.54	-2.20 (-3.67 to -0.74); P = 0.004	-4.31 (-5.42 to -3.20); P < 0.001	-2.11 (-3.95 to -0.27)	0.025	0.45

CI: Confidence interval.