Re-infection rates changes from <i>Clonorchis sinensis</i> (Cs) egg positive to negative status by treatment and egg positive again by treatment strategies among initial Cs positive subjects, 2001–2004.

MT2, mass treatment every 2 year; MT1, mass treatment every year; ST1, selective treatment every year; ST1R, selective treatment and reservoir control every year; ST6M, selective treatment every 6 month; ST2-mod, selective treatment every 2 year; ST1-mod, selective treatment every year. 1The relative risk (RR) and 95% confidence interval (CI) in 2004 recurrence rates were estimated by Cox's proportional hazard model, adjusted for age and sex. 2Age and sex adjusted p-value corrected by Bonferroni's multiple comparison method. 3Mean numbers for each year. 4Not available.