Table 4.

HPV infection rates of different age groups among three ethnic groups.

Age groups (years)	Han				Uygur					Kazak			Total positive rate (%)
	N	Positives cases	Negative Cases	Positive rate (%)	N	Positives cases	Negative Cases	Positive rate (%)	N	Positives cases	Negative Cases	Positive rate (%)
≤25	67	22	45	32.84	28	9	19	32.14	20	5	15	25.00	31.30
26–30	149	61	88	40.94	62	21	41	33.87	62	11	51	17.74	34.07
31–35	189	59	130	31.22	94	16	78	17.02	69	13	56	18.84	25.00
36–40	258	67	191	25.97	132	21	111	15.91	105	15	90	14.29	20.81
41–45	419	114	305	27.21	175	39	136	22.29	89	19	70	21.35	25.18
46–50	473	122	351	25.79	184	34	150	18.48	96	29	67	30.21	24.57
51–55	240	60	180	25.00	88	26	62	29.55	53	14	39	26.42	26.25
56–60	75	27	48	36.00	41	8	33	19.51	20	6	14	30.00	30.15
≥61	152	32	120	21.05	53	22	31	41.51	52	10	42	19.23	24.90
Total	2,022	564	1458	27.89	857	196	661	22.87	566	122	444	21.55	25.60