Table 1.

Association between Opisthorchis viverrini infection, and seasonal and yearly factors

Factor	Odds ratios	95% CI	P-value
Infection
Season	2.254	1.957–2.596	< 0.001
Hot-dry	Ref
Rainy	1.797	1.341–2.409	< 0.001
Cool-dry	2.067	1.800–2.373	< 0.001
Year	1.857	1.690–2.040	< 0.001
2010	Ref
2011	1.911	1.300–2.809	0.01
2012	1.986	1.664–2.371	< 0.001
2013	1.869	1.670–2.093	< 0.001