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Association between the prevalence of Opisthorchis viverrini and snail size class
| Size class (mm) | Odds ratios | 95% CI |
|---|---|---|
| 6.1–8.0 | – | Ref |
| 8.1–10.0 | 0.885 | 0.670–1.170 |
| 10.1–12.0 | 1.006 | 0.857–1.181 |
| Greater than 12.0 | 1.425* | 1.126–1.804 |
Significance (P < 0.01).
