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

Table 2 Demographic information of participants, median (interquartile rage)/mean ± SD/n (%)

	Male (n = 100)		χ2/Z/t	P value	Female (n = 100)		χ2/Z/t	P value
	Intervention group (n = 51)	Control group (n = 49)			Intervention group (n = 51)	Control group (n = 49)
Age	35 (31-37)	33 (30.5-39.5)	Z = -0.304	0.761	33(30-35)	32 (29-35)	Z = -0.948	0.343
BMI	24.25 ± 3.08	24.61 ± 3.66	t = -0.53	0.597	22.22 (21.1-24.1)	23.67(20.5-25.6)	Z = -1.048	0.295
Education			χ2f = 0.260	1			χ2f = 5.075	0.161
Middle school	5 (9.8)	5 (10.2)			6 (11.8)	9 (18.4)
High school	7 (13.7)	7 (14.3)			4 (7.8)	10 (20.4)
Undergraduate	35 (68.6)	34 (69.4)			36 (70.6)	25 (51)
Graduate	4 (7.8)	3 (6.1)			5 (9.8)	5 (10.2)
Smoking			χ2 = 3.780	0.286			χ2f = 0.970	1
No	33 (64.7)	25 (51)			50 (98)	49 (100)
Seldom	7 (13.7)	6 (12.2)			1 (2)	0 (0)
Occasional	4 (7.8)	10 (20.4)
Often	7 (13.7)	8 (16.3)
Drinking			χ2f = 4.487	0.201			χ2a = 0.223	0.637
No	22 (43.1)	29 (59.2)			49 (96.1)	45 (91.8)
Seldom	23 (45.1)	13 (26.5)			2 (3.9)	4 (8.2)
Occasional	4 (7.8)	6 (12.2)
Often	2 (3.9)	1 (2)
Marriage length	5 (3-9)	4 (3-8)	Z = -1.117	0.264	5(3-8)	5 (3-6.5)	Z = -0.902	0.367
Treatment length	2 (2-3)	2 (1-3)	Z = -1.786	0.074	2 (1-3)	2 (1-3)	Z = -1.027	0.304
Daily exercise time	0.8 (0.5-1)	1 (0.5-1)	Z = -1.143	0.253	0.5 (0.5-1)	0.5 (0.5-1)	Z = -0.318	0.751

χ² denotes the χ² test; f denotes Fisher’s exact test; Z denotes the nonparametric Mann-Whitney U test; t denotes the independent samples t-test. BMI: Body mass index.