Findings from 4 additional studies of GHT have been published in 6 separate
reports by Harrison and colleagues and by Modrcin-McCarthy.36-41 Infants enrolled
in these studies have ranged from 25 weeks to 33 weeks gestation, and the touch
interventions have been provided for 5 days to 10 days, beginning 6 days to 9 days
postbirth. The touch consisted of one of the investigators placing a hand on the
infant’s head and the other hand on the infant’s lower back and buttocks for 10
minutes to 20 minutes. In the largest of these studies, the sample consisted of 84
preterm infants between 27 weeks and 33 weeks GA at birth.