Table 3.
Multivariate analysis of risk factors for Toxoplasma gondii infection in patients with liver disease
| Variable | Number tested | Number positive | Prevalence (%) | Univariate analysis1 | Multivariate analysis2 | ||
|---|---|---|---|---|---|---|---|
| OR (95% CI)* | P-value | OR (95% CI) | P-value | ||||
| Cats at home | 744 | 35 | 4·7 | 1·08 (0·77–1·51) | 0·61 | – | – |
| Dogs at home | 744 | 29 | 3·9 | 1·13 (0·78–1·63) | 0·49 | – | – |
| Consumption of raw vegetables | 744 | 73 | 9·81 | 0·90 (0·69–1·18) | 0·48 | – | – |
| Exposure to soil | 744 | 97 | 13·04 | 1·13 (0·87–1·46) | 0·34 | – | – |
| Consumption of raw/undercooked meat | 744 | 81 | 10·89 | 1·30 (1·00–1·69) | 0·04 | 1·32 (1·01–1·71) | 0·03 |
| Source of drinking water: none | 398 | 48 | 12·06 | Reference | – | – | – |
| Running water | 587 | 135 | 23·0 | 1·27 (0·95–1·68) | 0·09 | 1·09 (0·79–1·50) | 0·56 |
| Wells | 157 | 42 | 26·75 | 1·79 (1·26–2·54) | <0·001 | 1·56 (1·08–2·27) | 0·01 |
OR, odds ratio; CI, confidence interval.
1
Statistical model tested individual effect, after correction for age, gender, and geographic region.
2
Statistical model excluded factors not significant on univariate analysis, but included consumption of raw/undercooked meat and source of drinking water from wells, after correction for age, gender, and geographic region.