Table 2. The Overall Distribution of Single HPV Infections (N = 3017).

HPV type	Age group (year)								Infectious individuals (n)	Frequency for all samples (%)	95% CI for all samples (%)	Frequency for positive samples (%)	95% CI for positive samples (%)
	≦25	26–30	31–35	36–40	41–45	46–50	51–55	≧56
6	23	17	10	10	5	8	4	4	81	0.28	0.22–0.34	2.20	1.73–2.67
11	11	15	15	16	8	7	0	2	74	0.26	0.20–0.32	2.01	1.56–2.46
16	64	74	91	105	69	51	16	16	486	1.71	1.56–1.86	13.20	12.11–14.30
18	27	41	29	22	26	11	5	5	166	0.58	0.49–0.67	4.51	3.84–5.18
26	0	3	0	3	1	0	0	0	7	0.02	0.00–0.04	0.19	0.05–0.33
31	7	13	25	22	25	9	3	2	106	0.37	0.30–0.44	2.88	2.34–3.42
33	16	11	20	23	20	12	2	3	107	0.38	0.31–0.45	2.91	2.36–3.45
35	4	5	10	5	6	3	4	0	37	0.13	0.09–0.17	1.01	0.68–1.33
39	18	22	32	29	16	14	3	6	140	0.49	0.41–0.57	3.80	3.19–4.42
40	3	4	4	4	4	1	1	1	22	0.08	0.05–0.11	0.60	0.35–0.85
42	2	2	4	8	7	3	2	0	28	0.10	0.06–0.14	0.76	0.48–1.04
44	5	9	8	10	2	9	1	1	45	0.16	0.11–0.21	1.22	0.87–1.58
45	3	7	6	5	6	3	0	1	31	0.11	0.07–0.15	0.84	0.55–1.14
51	10	18	18	11	16	16	1	0	90	0.32	0.25–0.39	2.44	1.95–2.94
52	85	104	105	106	86	72	22	13	593	2.08	1.91–2.25	16.11	14.92–17.30
53	13	17	18	15	15	15	3	2	98	0.34	0.27–0.41	2.66	2.14–3.18
55	5	6	8	9	11	8	2	2	51	0.18	0.13–0.23	1.39	1.01–1.76
56	15	19	24	28	22	18	9	5	140	0.49	0.41–0.57	3.80	3.19–4.42
58	32	53	42	54	54	37	11	12	295	1.04	0.88–1.12	8.01	7.14–8.89
59	11	14	9	17	18	7	2	5	83	0.29	0.23–0.35	2.25	1.78–2.73
61	13	7	8	18	11	18	4	0	79	0.28	0.22–0.34	2.15	1.68–2.61
66	8	9	9	12	6	5	2	3	54	0.19	0.15–0.25	1.47	1.08–1.86
68	17	20	35	27	13	13	3	1	129	0.45	0.37–0.53	3.50	2.91–4.10
73	0	0	0	0	0	0	0	0	0	0.00	0.00–0.00	0.00	0.00–0.00
82	11	7	20	12	8	7	1	3	69	0.24	0.18–0.30	1.87	1.44–2.31
83	1	1	1	1	1	1	0	0	6	0.02	0.04–0.04	0.16	0.03–0.29

Note: All genotypes from single and multiple infections were computed individually.