Table 1 Seroprevalence of HBsAg with socio-demographic characteristics of the study participants
Characteristic | Samples size (n) | Percent (%) | HBsAg positive (n) | Seroprevalence (%, 95% CI) | χ 2 | p | |
|---|---|---|---|---|---|---|---|
Age (y) | |||||||
15-19 | 876 | 7.07 | 75 | 8.57 | (6.71-10.42) | 22.340 | 0.001 |
20-24 | 1353 | 10.92 | 140 | 10.32 | (8.70-11.94) | ||
25-29 | 1783 | 14.39 | 187 | 10.51 | (9.09-11.93) | ||
30-34 | 1754 | 14.15 | 199 | 11.37 | (9.88-12.86) | ||
35-39 | 2174 | 17.54 | 206 | 9.48 | (8.25-10.71) | ||
40-44 | 2408 | 19.43 | 222 | 9.21 | (8.06-10.37) | ||
45-49 | 2045 | 16.50 | 150 | 7.35 | (6.23-8.48) | ||
Ethnic group | |||||||
Han | 6831 | 55.12 | 620 | 9.08 | (8.40-9.76) | 9.636 | 0.001 |
Li | 4395 | 35.46 | 464 | 10.56 | (9.65-11.47) | ||
Others | 1167 | 9.42 | 95 | 8.14 | (6.57-9.71) | ||
Marital status | |||||||
Single | 4219 | 34.04 | 382 | 9.05 | (8.18-9.92) | 1.867 | 0.393 |
Married | 7257 | 58.56 | 703 | 9.68 | (9.00-10.36) | ||
Divorced/Widowed | 917 | 7.40 | 94 | 10.25 | (8.29-12.21) | ||
Education level | |||||||
Illiteracy | 2813 | 22.70 | 309 | 10.98 | (9.82-12.14) | 14.442 | 0.002 |
Junior high | 4421 | 35.67 | 427 | 9.66 | (8.79-10.53) | ||
Senior high | 3754 | 30.29 | 336 | 8.95 | (8.04-9.86) | ||
College or higher | 1405 | 11.34 | 107 | 7.62 | (6.23-9.01) | ||
Employment | |||||||
Housekeeper | 7314 | 59.02 | 737 | 10.08 | (9.39-10.77) | 6.574 | 0.010 |
Employee | 5079 | 40.98 | 442 | 8.7 | (7.92-9.48) | ||
Family monthly income (RMB) | |||||||
<1000 | 3931 | 31.72 | 411 | 10.46 | (9.50-11.42) | 10.816 | 0.013 |
1000~2000 | 4897 | 39.51 | 473 | 9.66 | (8.83-10.49) | ||
2000~5000 | 2660 | 21.46 | 216 | 8.12 | (7.08-9.16) | ||
≥5000 | 905 | 7.30 | 79 | 8.73 | (6.89-10.57) | ||
Nulliparous woman | |||||||
No | 5120 | 41.31 | 623 | 12.17 | (11.27-13.07) | 71.415 | <0.001 |
Yes | 7273 | 58.69 | 556 | 10.86 | (10.14-11.58) | ||
Location | |||||||
East of Hainan | 4012 | 32.37 | 336 | 8.37 | (7.51-9.23) | 9.010 | 0.011 |
Middle of Hainan | 4123 | 33.27 | 411 | 9.97 | (9.06-10.88) | ||
West of Hainan | 4258 | 34.36 | 432 | 10.15 | (9.24-11.06) | ||
Total | 12393 | 100.00 | 1179 | 9.51 | (8.99-10.02) | ||