Longitudinal Data Analysis And Its Application In Evaluation Of Worms Control in Children

Abstract

A logit and probit models were fitted to evaluate the control of worms in children. The study considered four types of worms namely ascaris (as) hookworm (hw) schistosomula (sm) and trichuris (tr) which were observed in children for three times. Observations are based on dummy variables; presence of worms on -th individual at t measurement occasions is denoted by 1 and 0 otherwise. Four demographic factors on each individual were changed to be in binary form. i individual past treatment to worms (treat) i.e. whether a child has ever been treated to worms prior to the study or not. treated (1) and (O)otherwise 't2 pupils level in school i.e class five (0) or six (1). '/,'/,2 sex; male (1) or female (0). '/,V supplement (supl) i.e. whether the child was given the macronutrient or not; given (1) not given (0). The result was tabulated. An appropriate analytical models were described and fitted .The data was analyzed using SAS. The result was discussed and the conclusions made.