MOESM7 of Characterization of Plasmodium falciparum and Plasmodium vivax recent exposure in an area of significantly decreased transmission intensity in Central Vietnam

Additional file 7. Predictive factors of seropositivity against Plasmodium vivax in the study area at survey 1 and survey 6. Multivariate risk factor analysis of seropositivity against P. vivax in the study area at survey 1 (nâ =â 330) and survey 6 (nâ =â 304); NS not significant in univariate analysis, therefore not included in multivariate model; NA variable measured during survey, therefore not relevant for seropositivity at survey 1.