Table 3.
Results of the univariate and multivariate analyses for risk factors associated with HBV infection of the study population
| Variables/ states | No. of participants | No. of infections(Rate in %) | cOR (95 % CI) | aOR (95 % CI) | |
|---|---|---|---|---|---|
| Age (years) | 6–10 | 54 | 5 (9.3) | 1.53 (0.44, 5.27) | 1.50 (0.32, 6.92) |
| 11–20 | 48 | 2 (4.2) | 0.65 (0.13, 3.36) | 1.01 (0.18, 5.69) | |
| 21–30 | 66 | 16 (24.2) | 4.80 (1.77, 13.05)* | 6.66 (2.15, 20.68)** | |
| 31–40 | 86 | 8 (9.3) | 1.54 (0.51, 4.63) | 1.37 (0.41, 4.63) | |
| 41–50 | 88 | 3 (3.4) | 0.53 (0.13, 2.18) | 0.55 (0.12, 2.52) | |
| >50 | 96 | 6 (6.3) | 1.00 | 1.00 | |
| Gender | Male | 172 | 14 (8.1) | 0.82 (0.41, 1.62) | |
| Female | 266 | 26 (9.8) | 1.00 | ||
| Occupation | Worker | 4 | 0 (0) | 0 | |
| Peasant | 370 | 37 (10.0) | 2.26 (0.68, 7.56) | ||
| Else | 64 | 3 (4.7) | 1.00 | ||
| Education | Illiterate | 286 | 25 (8.7) | 0.88 (0.45, 1.71) | |
| Elementary school and above | 152 | 15 (9.9) | 1.00 | ||
| Marital status | Unmarried | 100 | 8 (8.0) | 1.00 | |
| First married | 293 | 28 (9.6) | 1.22 (0.54, 2.76) | ||
| Divorced and other | 45 | 4 (8.9) | 1.12 (0.32, 3.94) | ||
| Home income (¥ yuan, RMB) | <1,000 | 12 | 0 (0) | 0 | |
| 1,000–2,999 | 71 | 3 (4.2) | 0.36 (0.10, 1.29) | ||
| 3,000–4,999 | 142 | 15 (10.6) | 0.97 (0.45, 2.07) | ||
| 5,000–9,999 | 75 | 7 (9.3) | (0.33, 2.17) | ||
| ≥10,000 | 138 | 15 (10.9) | 1.00 | ||
| Drug abuse | Yes | 9 | 3 (33.3) | 5.30 (1.27, 22.05)* | 6.96 (1.11, 43.90)** |
| No | 429 | 37 (8.6) | 1.00 | 1.00 | |
| Work outside | Yes | 134 | 17 | 1.78 (0.92, 3.45) | |
| No | 304 | 23 | 1.00 | ||
| Work on farm | Yes | 265 | 32 (12.1) | 2.18 (0.97, 5.07) | 4.59 (1.44, 14.63)** |
| No | 113 | 5 (4.4) | 1.00 | 1.00 | |
| Clean food when eaten raw | Always | 39 | 0 (0) | 1.00 | |
| Occasionally | 244 | 28 (11.5) | 0 | ||
| Never | 128 | 9 (7.0) | 1.71 (0.78, 3.75) | ||
| Fertilization pattern | Directly | 20 | 6 (30.0) | 1.00 | 1.00 |
| After disposal | 374 | 31 (8.3) | 0.21 (0.08, 0.59)* | 0.14(0.04,0.47)** | |
| Raising Animals | Yes | 338 | 34 (10.1) | 1.75 (0.71, 4.30) | |
| No | 100 | 6 (6.0) | 1.00 | ||
| Toilets | None | 188 | 19 (10.1) | 0.852 (0.43, 1.57) | |
| Yes | 250 | 21 (8.4) | 1.00 | ||
| Village No. | 1 | 114 | 16 (14.0) | 1.81 (0.79, 4.18) | |
| 2 | 115 | 5 (4.4) | 0.51 (0.17, 1.52) | ||
| 3 | 88 | 9 (10.2) | 1.27 (0.49, 3.26) | ||
| 4 | 121 | 10 (8.3) | 1.00 | ||
| A. lumbricoides | Negative | 379 | 30 (7.9) | 1.00 | 1.00 |
| Positive | 59 | 10 (17.0) | 2.37 (1.09, 5.16)* | 3.60 (1.48, 8.75)** | |
| T. trichiura | Negative | 304 | 28 (9.2) | 1.00 | |
| Positive | 134 | 12 (9.0) | 0.97 (0.48, 1.97) |
CI confidence interval, OR odds ratio, cOR crude odds ratio, aOR adjusted odds ratio, HBV hepatitis B virus
RMB Renminbi, the current rate of exchange be 9.66 yuan to 1 pound, i.e., ¥ 9.66 yuan (RMB) = £1 lb (GBP)
*, P ≤ 0.05 in univariate analyses; **, P ≤ 0.05 in and multivariate analyses