Table 2. Prevalence of hepatitis B surface antigen (HBsAg) according to the selected characteristics.
| Characteristics | Frequency | Prevalence (%) | P |
|---|---|---|---|
| Age (years) | <0.0001 | ||
| 0–12 | 16188 | 0.29 | |
| 13–22 | 2904 | 2.24 | |
| 23–59 | 69026 | 12.71 | |
| 60+ | 51103 | 7.33 | |
| Gender | 0.2243 | ||
| Male | 53718 | 8.82 | |
| Female | 115493 | 8.65 | |
| Nationality | <0.0001 | ||
| Han | 164425 | 8.74 | |
| Minority | 3946 | 9.88 | |
| Educational level (aged 23–59 years) | <0.0001 | ||
| Illiteracy | 743 | 10.50 | |
| Primary school | 11288 | 13.25 | |
| Middle school | 19241 | 13.07 | |
| High and vocational school | 20059 | 12.53 | |
| Undergraduate and above | 6974 | 11.03 | |
| Educational level (aged 60+ years) | 0.0002 | ||
| Illiteracy | 3504 | 6.08 | |
| Primary school | 13956 | 7.48 | |
| Middle school | 17966 | 7.22 | |
| High and vocational school | 11973 | 6.92 | |
| Undergraduate and above | 3312 | 5.98 | |
| Career (aged 23–59 years) | <0.0001 | ||
| Leaders of enterprise unit | 980 | 12.14 | |
| Technical personnel | 2214 | 10.98 | |
| Handle affairs personnel | 2115 | 10.07 | |
| Commercial personnel | 4629 | 12.66 | |
| Agricultural, forestry and fishery producers | 8158 | 13.89 | |
| Transportation equipment operators | 2639 | 12.62 | |
| Others | 41596 | 12.97 | |
| Career (aged 60+ years) | <0.0001 | ||
| Leaders of enterprise unit | 1130 | 5.93 | |
| Technical personnel | 1969 | 5.33 | |
| Handle affairs personnel | 1527 | 5.44 | |
| Commercial personnel | 1893 | 6.71 | |
| Agricultural, forestry and fishery producers | 15767 | 7.83 | |
| Transportation equipment operators | 4558 | 6.38 | |
| Others | 23144 | 7.37 | |
| Marital status (aged 23–59 years) | <0.0001 | ||
| Single | 5168 | 10.20 | |
| Married | 51452 | 12.98 | |
| Widowed | 1046 | 11.57 | |
| Divorced | 904 | 12.06 | |
| Marital status (aged 60+ years) | <0.0001 | ||
| Single | 1308 | 5.73 | |
| Married | 40900 | 7.37 | |
| Widowed | 6569 | 6.00 | |
| Divorced | 501 | 8.18 | |
| Hepatitis B vaccination (aged 0–22 years) | <0.0001 | ||
| Yes | 17295 | 0.35 | |
| No | 1792 | 2.50 | |
| Hepatitis B vaccination (aged 23–59 years) | <0.0001 | ||
| Yes | 56777 | 7.10 | |
| No | 12220 | 14.85 | |
| Hepatitis B vaccination (aged 60+ years) | 0.0003 | ||
| Yes | 6997 | 5.04 | |
| No | 44082 | 8.25 |
Characteristics of the study participants included age, gender, nationality, education level, career, marital status, and individual history of hepatitis B vaccination. Data were expressed as the frequency and prevalence, and Chi-square test was performed to compare the differences among different groups. The statistical significance level of P < 0.05 was used.