Table 4.
Seroprevalence of antibodies against HAV/HEV according to age and residency
| Age groups | Percent positives (number of anti-HAV IgG positive/total number) |
Percent positives (number of anti-HEV IgG positive/total number) |
||||
|---|---|---|---|---|---|---|
| Urban∗ | Suburban∗ | Rural∗ | Urban∗ | Suburban∗ | Rural∗ | |
| 10–14 | 43.48 (20/46) | 35.94 (23/64) | 25.00 (2/8) | 0.00 (0/46) | 1.56 (1/64) | 0.00 (0/8) |
| 15–19 | 20.00 (6/30) | 35.14 (13/37) | 27.27 (3/11) | 0.00 (0/30) | 0.00 (0/37) | 0.00 (0/11) |
| 20–29 | 50.00 (23/46) | 62.22 (28/45) | 40.00 (2/5) | 4.35 (2/46) | 6.67 (3/45) | 0.00 (0/5) |
| 30–39 | 93.02 (40/43) | 97.96 (48/49) | 100.00 (6/6) | 9.30 (4/43) | 6.12 (3/49) | 0.00 (0/6) |
| 40–59 | 100.00 (22/22) | 100.00 (30/30) | 100.00 (13/13) | 18.18 (4/22) | 16.67 (5/30) | 46.15 (6/13) |
| ≥60 | 92.86 (13/14) | 100.00 (9/9) | 100.00 (11/11) | 57.14 (8/14) | 33.33 (3/9) | 63.64 (7/11) |
| Total | 61.69 (124/201) | 64.53 (151/234) | 68.52 (37/54) | 8.96 (18/201) | 6.41 (15/234) | 24.07 (13/54) |
∗A p value <0.0001 by χ2 test.
Calculated by Cochran-Mantel-Haenszel Statistics for residency in HAV IgG(+) χ2(overall) = 0.2991, p = 0.5845.
Calculated by Cochran-Mantel-Haenszel Statistics for residency in HEV IgG(+) χ2(overall) = 0.8436, p = 0.3584.
HAV = hepatitis A virus; HEV = hepatitis E virus.