Table 2.

Seropositivity in different age groups

Age group	n	Positive	%	95% CI		P-value
18–20	40	23	57.50	42.18	72.82	< 0.001
21–30	1976	1341	67.86	65.80	69.92
31–40	577	466	80.76	77.54	83.98
41–50	203	189	93.10	89.61	96.59
51–60	84	84	100	100.00	100.00
61–70	25	25	100	100.00	100.00
Total	2905	2128	73.25