| prevalence of helminthic infections and risk factors in villagers of nanglae sub-district, chiang rai province, thailand. | the purposes of the present study were to survey the prevalence of helminthic infections in people living in nanglae sub-district of chiang rai province, thailand from january to march 2013, and to determine factors that correlated with these infections. two hundred and sixty-three fecal samples were examined for helminth eggs by the use of kato's thick smear technique. all data were analyzed by descriptive statistics including frequencies, percentages and correlations (odds ratio [or] and 95% c ... | 2014 | 24851562 |