Table 6 Odds ratio for HEV sero-reactivity and corresponding 95% CI according to risk factors
Characteristic | HEV positive | HEV negative | OR | 95% CI | p-value |
|---|---|---|---|---|---|
Piped-water (n = 353) | |||||
Yes | 118 | 147 | 13.33 | 5.23-33.93 | < 0.001 |
No | 5 | 83 | 1.00 | Baseline | |
Cleaning barns (n = 353) | |||||
Yes | 101 | 111 | 4.92 | 2.90-8.35 | < 0.001 |
No | 22 | 119 | 1.00 | Baseline | |
Assisting sows at birth (n = 353) | |||||
Yes | 98 | 129 | 3.07 | 1.84-5.11 | < 0.001 |
No | 25 | 101 | 1.00 | Baseline | |
Butchering at farm (n = 353) | |||||
Yes | 89 | 109 | 2.91 | 1.81-4.66 | < 0.001 |
No | 34 | 121 | 1.00 | Baseline | |
Eating under-cooked pork (n = 353) | |||||
Yes | 22 | 19 | 2.42 | 1.25-4.67 | 0.009 |
No | 101 | 211 | 1.00 | Baseline | |
Reported cut with blood- blood contact (n = 353) | |||||
Yes | 95 | 184 | 0.85 | 0.50-1.44 | 0.584 |
No | 28 | 46 | 1.00 | Baseline | |
Level of formal education (n = 353) | |||||
Tertiary | 0 | 3 | Not estimable | Not estimable | 0.554 |
Senior high | 2 | 8 | 0.56 | 0.11-2.70 | 0.518 |
Basic | 62 | 88 | 1.56 | 1.00-2.45 | 0.053 |
None | 59 | 131 | 1.00 | Baseline | |
Length of time on farm (n = 353) | |||||
≤6 months | 89 | 52 | 8.96 | 5.43-14.80 | < 0.001 |
> 6 months | 34 | 178 | 1.00 | Baseline |