This paper achieves a national approach to the main factors that infl uence
the child health production, as well as the determinants of the demand
for health inputs in Colombia. Data was taken form the National
Health and Demographic Survey 2005. In order to correct endogeneity
problems in the inputs, the empiric analysis uses instrumental variables,
and the estimation was done in two non-linear stages. In general,
it was found that the long term health status for children, measured
as z-score, is determined by: a) preventive care during pregnancy, b)
availability of household resources and, c) child characteristics, such
as age and gender.