Objective: To determine the persistence of family psychological charac
teristics associated with infantile colic. Design: A 1-year follow-up
survey of families with colicky infants was carried out. The family in
terview was used to evaluate the psychological factors of colicky and
control families. Participants: A total of 59 families with a colicky
infant and 58 control families were enrolled in the initial evaluation
in the population-based study. On the basis of a structured diary of
the infant's crying, filled in by the parents, 3 groups of families we
re formed: severe colic group (n=36), moderate colic group (n=23), and
control group (n=58). The families were interviewed when the infants
were 2 and 12 months old. The Beavers-Timberlawn Family Evaluation Sca
le and the Oulu Family Assessment Scale were used. Thirty-two families
(89%) from the severe colic group, 17 (74%) from the moderate colic g
roup, and 49 (84%) from the control group participated in the 1-year a
ssessment. Results: At the 1-year assessment, the structural profile o
f the families did not differ between the groups. However, families in
the severe colic group had more difficulties in communication, more u
nresolved conflicts, more dissatisfaction, and greater lack of empathy
than families in the other groups. Furthermore, there was less flexib
ility in both colic groups than in the control group. During the follo
w-up period, coalition between parents in the moderate colic group bec
ame stronger compared with the first assessment, and the atmosphere im
proved significantly in all 3 study groups. However, the amount of emp
athy decreased in the sea ere colic group. Conclusions: Our study show
s that certain family characteristics associated with severe infantile
colic persist. Families in the moderate colic group coped nearly as w
ell as families in the control group. The family mood had improved a l
ot in all families when the infant was 1 year old.