Association of the Combined Effects between Insulin-Like Growth Factor-1 Gene Polymorphisms and Negative Life Events with Major Depressive Disorder among Chinese population in the Context of Oxidative Stress

Table 1

General demographics of the case group and the control group.

		Case ()	Control ()
Sex	Male	136 (32.4%)	158 (37.6%)	2.53	0.112
	Female	284 (67.6%)	262 (62.4%)
Age	16-30	90 (21.4%)	74 (17.6%)	4.90	0.179
	31-40	68 (16.2%)	84 (20.0%)
	41-50	109 (26.0%)	116 (27.6%)
	>50	153 (36.4%)	146 (34.8%)
Marital status	Unmarried	60 (14.3%)	40 (9.5%)	4.58	0.101
	Married	332 (79.0%)	349 (83.1%)
	Divorced or widowed	28 (6.7%)	31 (7.4%)
Education	Elementary and below	89 (21.2%)	80 (19.0%)	3.47	0.483
	Junior school	96 (22.9%)	89 (21.2%)
	Senior school	135 (32.1%)	139 (33.1%)
	Junior college	45 (10.7%)	61 (14.5%)
	College and above	55 (13.1%)	51 (12.2%)