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

Table 3

Comparison of gender differences in the prevalence of thyroid diseases in different age groups.

Age (years)	Male			Female			Total			χ ^2	p
	N of surveys	N of illnesses	Prevalence (%)	N of surveys	N of illnesses	Prevalence (%)	N of surveys	N of illnesses	Prevalence (%)
18–29	72	24	33.33	176	83	47.16	248	107	43.15	3.98	0.046
30–39	130	43	33.08	264	150	56.82	394	193	48.98	19.65	<0.001
40–49	146	64	43.84	323	206	63.78	469	270	57.57	16.37	<0.001
50–59	215	117	54.42	416	298	71.63	631	415	65.77	18.66	<0.001
60–69	110	58	52.73	190	134	70.53	300	192	64.00	9.58	0.002
≥70	36	23	63.89	58	45	77.59	94	68	72.34	2.08	0.149
Total	709	329	46.40	1427	916	64.19	2136	1245	58.29	61.64	<0.001

N: number. “” and bold text represent statistical significance.