Determinants | N | Seroprevalence (%)a | Crude ORb | [95% CI]c | Adjusted ORb,d,e | [95% CI]c |
---|---|---|---|---|---|---|
Age (years) | ||||||
 20–30 | 50 | 10.0 | Ref. |  | Ref. |  |
 30–40 | 179 | 15.1 | 1.60 | [0.58–4.39] | 1.49 | [0.54–4.13] |
 40–50 | 432 | 19.2 | 2.14 | [0.82–5.55] | 2.01 | [0.77–5.26] |
 50–60 | 661 | 25.1 | 3.02 | [1.18–7.72] | 2.58 | [1.00–6.70] |
 60–70 | 938 | 37.5 | 5.40 | [2.13–13.73] | 4.22 | [1.63–10.91] |
  > =70 | 162 | 38.3 | 5.58 | [2.10–14.80] | 4.15 | [1.53–11.24] |
Gender | ||||||
 Female | 1,318 | 25.6 | Ref. |  | Ref. |  |
 Male | 1,104 | 32.3 | 1.39 | [1.16–1.65] | 1.21 | [1.00–1.47] |
Educational level | ||||||
 High | 733 | 24.8 | Ref. |  | Ref. |  |
 Medium | 1,080 | 26.9 | 1.12 | [0.90–1.38] | 1.10 | [0.87–1.38] |
 Low | 609 | 36.5 | 1.74 | [1.37–2.20] | 1.36 | [1.04–1.76] |
Diet without pork meat | ||||||
 No | 2,360 | 28.8 | Ref. |  | Ref. |  |
 Yes | 47 | 19.2 | 0.59 | [0.28–1.22] | 0.72 | [0.33–1.59] |
  Missing | 15 |  |  |  |  |  |
Ever smoked | ||||||
 No | 1,034 | 26.5 | Ref. |  | Ref. |  |
 Yes | 1,388 | 30.3 | 1.21 | [1.01–1.45] | 0.96 | [0.79–1.17] |
Childhood in study region | ||||||
 No | 580 | 32.2 | Ref. |  | Ref. |  |
 Yes | 1,816 | 27.4 | 0.79 | [0.65–0.97] | 0.85 | [0.68–1.07] |
  Missing | 26 |  |  |  |  |  |
Childhood on pig farm | ||||||
 No | 1,928 | 27.6 | Ref. |  | Ref. |  |
 Yes | 468 | 32.5 | 1.26 | [1.02–1.57] | 1.21 | [0.94–1.55] |
  Missing | 26 |  |  |  |  |  |
Performed jobs on farm during childhood | ||||||
 No | 1,090 | 26.9 | Ref. | - | Ref. |  |
 Yes | 1,220 | 29.7 | 1.15 | [0.96–1.38] | 1.02 | [0.83–1.27] |
  Missing | 112 |  |  |  |  |  |
Number of pigs within 1000Â m of residential address (tertiles) | ||||||
 Lowf | 807 | 32.1 | Ref. |  | Ref. |  |
 Intermediateg | 808 | 26.9 | 0.78 | [0.63–0.96] | 0.79 | [0.63–0.99] |
 Highh | 807 | 27.1 | 0.79 | [0.64–0.98] | 0.83 | [0.66–1.04] |