One-year postpartum outcomes following a weight management intervention in pregnant women with obesity.
OBJECTIVE
This analysis was focused on 1-year maternal and infant follow-up of a randomized trial that tested a weight management intervention conducted during pregnancy.


METHODS
One hundred fourteen women with obesity (mean BMI 36.7 kg/m(2) ) were randomly assigned at a mean of 15 weeks gestation to a weight management intervention or usual care control condition. The intervention ended at delivery and resulted in less gestational weight gain and a lower proportion of large-for-gestational-age newborns among intervention compared with control participants. The primary outcome at 12 months postpartum was maternal weight. Secondary outcomes included infant weight-for-age and weight-for-length z-scores.


RESULTS
At 1 year, mothers in the intervention group weighed 96.3 ± 18.6 kg and those in the control group 99.7 ± 19.2 kg. There was no significant difference between groups in change in weight from randomization to 1 year postpartum (b = -0.47, 95% CI: -4.03 to 3.08). There was a significant main effect of group for infant weight-for-age z-scores (b = -0.40, 95% CI: -0.75 to -0.05) but not infant weight-for-length z-scores (b = -0.20, 95% CI: -0.59 to 0.20).


CONCLUSIONS
A gestational weight management intervention did not influence maternal weight or infant weight-for-length at 1 year postpartum. Future studies may be warranted to determine whether extending prenatal interventions into the postpartum period would be beneficial for maternal and infant outcomes.
Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA. kimberly.k.vesco@kpchr.org.|Department of Obstetrics & Gynecology, Kaiser Permanente Northwest, Portland, Oregon, USA. kimberly.k.vesco@kpchr.org.
Kimberly K
KK
Vesco
Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA.
Michael C
MC
Leo
Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA.
Njeri
N
Karanja
Obesity Prevention Program, Harvard Medical School/Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
Matthew W
MW
Gillman
Obesity Prevention Program, Oregon Health & Science University, Portland, Oregon, USA.
Cindy T
CT
McEvoy
Pediatric and Child Health Research Program, Children's Hospital Oakland Research Institute, Oakland, California, USA.
Janet C
JC
King
School of Community Health, Portland State University, Portland, Oregon, USA.
Cara L
CL
Eckhardt
Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA.
K Sabina
KS
Smith
Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA.
Nancy
N
Perrin
Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA.
Victor J
VJ
Stevens
D000328:Adult; D015992:Body Mass Index; D003376:Counseling / Q000379:methods*; D004032:Diet / Q000706:statistics & numerical data; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D009035:Mothers; D009765:Obesity / Q000628:therapy*; D011181:Postnatal Care / Q000379:methods*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control / Q000628:therapy*; D011295:Prenatal Care / Q000379:methods*; D016896:Treatment Outcome; D015430:Weight Gain; D061217:Weight Reduction Programs / Q000379:methods*
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