Research evidence shows that the observed change in mortality levels can result from three major sources: change in mortality determinants [8], effects arising fromdata collection process [9], and estimation biases due to effects of HIVand AIDS
Research evidence shows thatthe observed change in mortality levels can result from threemajor sources: change in mortality determinants [8], effectsarising fromdata collection process [9], and estimation biasesdue to effects of HIVand AIDS