An Investigation on the Risk Factors of Thyroid Diseases in Community Population in Hainan

Table 8

The influence of different urine iodine concentration on the prevalence of thyroid diseases.

UIC (μg/L)	N of survey	Thyroid cases		Prevalence (%)
		Yes	No
0∼	156	101	55	64.7
50∼	294	203	91	69.0
100∼	292	181	111	62.0
150∼	275	161	114	58.5
200∼	279	142	137	50.9
250∼	158	71	87	44.9
300∼	165	91	74	55.2
350∼	129	64	65	49.6
400∼	166	83	83	50.0
450∼	132	78	54	59.1
500∼	90	70	20	77.8
Total	2136	1245	891	58.3

N: number; UIC: urinary iodine concentration.