Development of Social Life Impact for Mother (SLIM) scale at first
trimester to identify mothers who need social support during postpartum:
a hospital-based prospective study in Japan
Objective: Postpartum social problems, such as postpartum depression and
bonding disorders, are important risk factors for child maltreatment.
Mothers with such problems are known to need social support. The aim of
this study was to develop and validate the Social Life Impact for Mother
(SLIM) scale to identify mothers in Japan who need social support during
postpartum. Design: A hospital-based prospective study. Setting:
Obstetric clinics and hospitals in four populous prefectures in Japan.
Sample: A total of 7462 pregnant women. Methods: The participants
completed the SLIM scale at first trimester, and postpartum social
problems (postpartum depression and bonding disorders) were assessed at
one month after delivery (N=5768, follow-up rate: 77.3%). Multivariate
logistic regression was applied to investigate the association between
the SLIM scale and postpartum social problems. Main outcome measures:
Postpartum social problems (postpartum depression and bonding disorders)
at one month after delivery. Results: The SLIM scale predicted
postpartum social problems in moderate accuracy (AUC=0.63, 95%
confidence interval: 0.60-0.65). Further stratification by local clinic
and tertiary hospital did not affect the estimates. Conclusion: The SLIM
scale at prenatal checkup may be useful for obstetricians to detect
mothers with postpartum social problems. Further intervention study
using SLIM score is warranted.