Objective. To evaluate the effectiveness of infant massage compared with th
at of a crib vibrator in the treatment of infantile colic.
Methods. Infants <7 weeks of age and perceived as colicky by their parents
were randomly assigned to an infant massage group (n = 28) or a crib vibrat
or group (n = 30). Three daily intervention periods were recommended in bot
h groups. Parents recorded infant crying and given interventions in a struc
tured cry diary that was kept for 1 week before (baseline) and for 3 weeks
during the intervention. Parents were interviewed after the first and third
weeks of intervention to obtain their evaluation of the effectiveness of t
he given massage or crib vibration.
Results. At baseline, the mean amount of total crying was 3.6 (standard dev
iation: 1.4) hours/day in the massage group infants and 4.2 (2.0) hours/day
in the vibrator group infants. The mean amount of colicky crying was 2.1 (
standard deviation: 1.1) hours/day and 2.9 (1.5) hours/day, respectively. T
he mean number of daily intervention periods was 2.2 in both groups. Over t
he 4-week study, the amount of total and colicky crying decreased significa
ntly in both intervention groups. The reduction in crying was similar in th
e study groups: total crying decreased by a mean 48% in the massage group a
nd by 47% in the vibrator group, and colicky crying decreased by 64% and 52
%, respectively. The amount of other crying (total crying minus colicky cry
ing) remained stable in both groups over the intervention. Ninety-three per
cent of the parents in both groups reported that colic symptoms decreased o
ver the 3-week intervention, and 61% of the parents in the massage group an
d 63% of the parents in the crib vibrator group perceived the 3-week interv
ention as colic reducing.
Conclusions. Infant massage was comparable to the use of a crib vibrator in
reducing crying in colicky infants. We suggest that the decrease of total
and colicky crying in the present study reflects more the natural course of
early infant crying and colic than a specific effect of the interventions.