Fig. 1.

Mean heart rate, respiratory rate and oxygen saturation.

Mean heart rate in beats per minute (a), respiratory rate in breaths per minute (b) and oxygen saturation in percent (c) with standard errors for infants allocated to iKMC or control. Range of heart rate according to stability criteria: 120–160 beats per minute. Range of respiratory rate according to stability criteria: 40–60 breaths per minute. Range of oxygen saturation according to stability criteria: >90%. The number on the X-axis refers to the order of six-hourly observation time-points for each child, four observations per 24 h. iKMC=immediate Kangaroo mother care, SE=standard error.