Gender-Specific Effect of -102G>A Polymorphism in Insulin Induced Gene 2 on Obesity in Chinese Children

Table 1

(a) General characteristics of the study groups. (b) General characteristics of the study groups in boys or girls.

(a)

	All samples
	Obese group	Nonobese group	P value
	705	1325	—
Age (year)	12.85 ± 2.59	12.93 ± 2.72	0.497
Male (%)	484 (68.7)	734 (55.4)	<0.001
Body mass index (BMI)	28.12 ± 3.94	21.53 ± 3.45	<0.001
BMI-SDS	2.49 ± 0.48	0.85 ± 0.94	<0.001
Waist circumference (cm)	88.12 ± 11.27	71.78 ± 9.91	<0.001
Hip circumference (cm)	100.68 ± 11.15	88.75 ± 11.23	<0.001
Waist-hip ratio (WHR)	0.88 ± 0.06	0.81 ± 0.06	<0.001
Total cholesterol (mmol/L)	4.44 ± 0.78	4.22 ± 0.75	<0.001
Triglyceride (mmol/L)	1.17 ± 0.65	0.84 ± 0.35	<0.001
Low-density lipoprotein cholesterol (mmol/L)	2.64 ± 0.75	2.25 ± 0.65	<0.001
High-density lipoprotein cholesterol (mmol/L)	1.09 ± 0.35	1.27 ± 0.44	<0.001
Body fat percentage (%)	27.46 ± 5.61	19.19 ± 6.75	<0.001
Triceps skinfold (mm)	21.60 ± 4.25	14.41 ± 4.65	<0.001
Subscapular skinfold (mm)	22.02 ± 4.69	13.37 ± 5.38	<0.001
Abdominal skinfold (mm)	23.55 ± 5.37	15.47 ± 5.97	<0.001
Suprailiac skinfold (mm)	20.89 ± 4.62	13.25 ± 5.44	<0.001
Sum of skinfolds (mm)	88.06 ± 16.17	56.51 ± 19.73	<0.001

(b)

	Male			Female
	Obese group	Nonobese group	P value	Obese group	Nonobese group	P value
	484	734		221	591
Age (year)	12.9 ± 2.61	13.16 ± 2.68	0.095	12.74 ± 2.55	12.66 ± 2.75	0.678
Body mass index (BMI)	28.33 ± 3.95	22 ± 3.23	<0.001	27.65 ± 3.89	20.96 ± 3.63	<0.001
BMI-SDS	2.6 ± 0.47	1.05 ± 0.91	<0.001	2.24 ± 0.41	0.61 ± 0.92	<0.001
Waist circumference (cm)	90.23 ± 11.13	74.52 ± 9.71	<0.001	83.44 ± 10.13	68.38 ± 9.06	<0.001
Hip circumference (cm)	101.06 ± 11.18	89.67 ± 10.69	<0.001	99.76 ± 11	87.6 ± 11.78	<0.001
Waist-hip ratio (WHR)	0.89 ± 0.05	0.83 ± 0.05	<0.001	0.84 ± 0.06	0.78 ± 0.05	<0.001
Total cholesterol (mmol/L)	4.44 ± 0.74	4.14 ± 0.74	<0.001	4.44 ± 0.85	4.32 ± 0.74	0.057
Triglyceride (mmol/L)	1.18 ± 0.64	0.81 ± 0.34	<0.001	1.13 ± 0.66	0.87 ± 0.35	<0.001
Low-density lipoprotein cholesterol (mmol/L)	2.65 ± 0.75	2.21 ± 0.66	<0.001	2.63 ± 0.76	2.29 ± 0.63	<0.001
High-density lipoprotein cholesterol (mmol/L)	1.09 ± 0.35	1.21 ± 0.45	<0.001	1.11 ± 0.35	1.34 ± 0.43	<0.001
Body fat percentage (%)	25.68 ± 5.34	16.08 ± 6.31	<0.001	31.16 ± 4.16	22.3 ± 5.66	<0.001
Triceps skinfold (mm)	21.58 ± 4.28	13.93 ± 4.63	<0.001	21.64 ± 4.2	14.92 ± 4.62	<0.001
Subscapular skinfold (mm)	21.94 ± 4.82	13.09 ± 5.22	<0.001	22.16 ± 4.42	13.67 ± 5.54	<0.001
Abdominal skinfold (mm)	24.05 ± 5.46	15.51 ± 5.86	<0.001	22.48 ± 5.03	15.43 ± 6.1	<0.001
Suprailiac skinfold (mm)	21.13 ± 4.77	12.98 ± 5.33	<0.001	20.4 ± 4.25	13.53 ± 5.54	<0.001
Sum of skinfolds (mm)	88.71 ± 16.64	55.51 ± 19.17	<0.001	86.69 ± 15.13	57.54 ± 20.27	<0.001