Table 1.

Demographic characteristics of participating infants

Demographic information
No. infants36
Age at birth (weeks)39.0 (36.3–42.0)
Age at study (weeks)39.2 (36.6–43.3)
Postnatal age at study (d)2 (0–16)
Female infants15/36
Infants receiving right heel stimulation20/36
Weight at birth (g)3257 (1920–4750)
Cesarean deliveries18/36
  • Data are shown as the median (range) or as n/N and refer to number of infants, unless otherwise indicated.