Table1.

Basic characteristics of children and adolescents aged 7–18 years in Hainan Province, China, 2014

Characteristics	Boys (n = 666)		Girls (n = 911)		Total (n = 1577)		P
Age (year, mean, SD)	13.25	3.06	13.84	3.37	13.59	3.25	< 0.001
Age groups (n, %)
7–8	43	6.46	67	7.35	110	6.98	< 0.001
9–10	146	21.92	181	19.87	327	20.74
11–12	159	23.87	154	16.90	313	19.85
13–14	118	17.72	103	11.31	221	14.01
15–16	89	13.36	178	19.54	267	16.93
17–18	111	16.67	228	25.03	339	21.50
Urban (n, %)	379	56.91	559	61.36	938	59.48	0.075
Rural (n, %)	287	43.09	352	38.64	639	40.52
Height (cm)	150.42	15.69	148.05	12.11	149.05	13.78	0.001
Weight (kg)	39.61	12.48	38.16	9.94	38.77	11.10	0.013
BMI (kg/m2, mean, SD)	17.02	2.68	17.06	2.52	17.04	2.58	0.718
Uric acid (μmol/L, median, IQR)	348.15	129.20	294.70	83.70	314.00	104.80	< 0.001
SBP (mmHg, mean, SD)	108.56	12.51	104.53	10.49	106.23	11.56	< 0.001
DBP (mmHg, mean, SD)	65.50	8.52	66.84	8.23	66.27	8.37	0.001
TC (mmol/L, median, IQR)	3.98	0.95	4.17	0.94	4.09	0.92	< 0.001
TG (mmol/L, median, IQR)	0.63	0.32	0.71	0.32	0.68	0.34	< 0.001
LDL-C (mmol/L, median, IQR)	2.24	0.77	2.38	0.82	2.33	0.81	< 0.001
HDL-C (mmol/L, median, IQR)	1.42	0.42	1.46	0.39	1.44	0.39	0.043
Creatinine (μmol/L, median, IQR)	58.00	26.80	52.80	15.30	54.50	16.90	< 0.001