the
study also illustrates the complexity of undertaking realworld
evaluations of interventions conducted under changing
conditions. Given the important lessons that can be
gained for future research, we outline some of the challenges
here. Some challenges include nurses’ rotations on and off
the ward through variable staff schedules; caregivers being
limited to intermittent hospital visits as their finances, work
and home responsibilities allow; and children being admitted
for varying lengths of stay with widely differing medical
conditions and prognoses. A small number of children died
between admission and discharge in both the pre- and postintervention
phases