Table 1. Demographic Characteristics of Respondents and Incidence of Positivity for Hepatitis B Surface Antigen a.
| Characteristics | Sample Size | HBsAg Positive b | CI, 95% | P Value |
|---|---|---|---|---|
| Gender | 0.03 | |||
| Male | 1310 | 126 (9.6) | (8.0 - 11.2) | |
| Female | 755 | 41 (5.4) | (3.8 - 7.0) | |
| Total | 2065 | 167(8.1) | (6.9 - 9.3) | |
| Ethnicity | 0.21 | |||
| Minority Chinese | 46 | 4 (8.7) | (3 - 21) | |
| Han Chinese | 2019 | 163 (8.1) | (6.9 - 9.3) | |
| Marital status | 0.17 | |||
| Married | 1520 | 122 (8.0) | (6.7 - 9.4) | |
| Previously married | 36 | 3 (8.3) | (2 - 22) | |
| Unmarried | 545 | 42 (7.7) | (5.5 - 9.9) | |
| Age group, y | 0.048 | |||
| 18 - 30 | 435 | 15 (3.5) | (1.8 - 5.2) | |
| 30 - 40 | 805 | 65 (8.1) | (6.9 - 9.3) | |
| 40 - 50 | 610 | 66 (10.8) | (8.3 - 13.3) | |
| 50 - 66 | 215 | 21 (9.8) | (5.8 - 13.8) | |
| Education | 0.31 | |||
| Illiterate | 46 | 4 (8.7) | (3 - 21) | |
| Elementary school | 635 | 45 (7.1) | (5.1 - 9.1) | |
| Junior high school | 1045 | 91 (8.7) | (7.0 - 10.4) | |
| Senior high school | 297 | 24 (8.1) | (6.9 - 9.3) | |
| College or above | 42 | 3 (7.1) | (2 - 20) | |
| Insurance coverage | 0.13 | |||
| The New Rural Cooperative Medical Scheme | 1100 | 94 (8.5) | (6.9 - 10.1) | |
| Private insurance | 37 | 3 (8.1) | (2 - 22) | |
| Uninsured | 928 | 70 (7.5) | (5.8 - 9.2) | |
| Duration of stay in Jinan, y | 0.09 | |||
| Less than 1 | 588 | 43 (7.3) | (5.2 - 9.4) | |
| 1 - 5 | 1021 | 91 (8.9) | (7.2 - 10.6) | |
| More than 5 | 456 | 33 (7.2) | (4.8 - 9.6) |
a Abbreviations: CI, confidence interval and HBsAg, Hepatitis B Surface Antigen.
b Values are presented as No. (%).