UMass Chan Medical School Faculty Publications


The Impact of a Lifestyle Intervention on Postpartum Weight Retention Among At-Risk Hispanic Women

UMMS Affiliation

Division of Preventive and Behavioral Medicine, Department of Population and Quantitative Health Sciences; UMass Worcester Prevention Research Center

Publication Date


Document Type



Nutritional and Metabolic Diseases | Pathological Conditions, Signs and Symptoms | Preventive Medicine | Race and Ethnicity | Women's Health


INTRODUCTION: This study assesses the impact of a culturally modified, motivationally targeted, individually tailored intervention on postpartum weight retention among Hispanic women with abnormal glucose tolerance during pregnancy.

METHODS: Estudio Parto (Project Aiming to Reduce Type twO diabetes) was an RCT conducted in Western Massachusetts (collected 20132017, analyzed 2018-2020). Hispanic women with blood glucose > /=140 mg/dL (7.77 mmol/L) on routine nonfasting oral glucose challenge test were randomized to a Lifestyle Intervention (n=100) focusing on healthy exercise and diet or to a comparison Health and Wellness Intervention (n=104) with no mention of exercise or diet behavior changes. The primary outcome was change in weight, calculated as the difference between prepregnancy weight and 6-week, 6-month, and 12-month postpartum weight. The secondary outcome was achievement of weight reduction to prepregnancy weight if prepregnancy BMI was normal, or a 5% reduction if prepregnancy BMI was overweight/obese.

RESULTS: In intent-to-treat analyses, there were no significant differences in weight change pattern between the intervention arms across all follow-up timepoints (beta=0.03, 95% CI= -3.38, 3.45). However, at 12 months postpartum, women in the Lifestyle Intervention arm had a statistically significant 2.5-fold higher odds of meeting the secondary weight reduction outcome (OR=2.52, 95% CI=1.09, 5.82) than women in the Health and Wellness arm. Regardless of intervention arm, women who reported higher levels of postpartum sports/exercise had a greater decrease in weight (beta= -2.39, 95% CI= -4.66, -0.13, p=0.04) than women reporting lower levels.

CONCLUSIONS: In this randomized trial among Hispanic women, no significant overall differences in weight change pattern between intervention arms were observed. Higher levels of self-reported physical activity were associated with greater weight loss in both arms.


postpartum weight retention, Hispanic Americans

DOI of Published Version



Palnati M, Marcus BH, Pekow P, Rosal MC, Manson JE, Chasan-Taber L. The Impact of a Lifestyle Intervention on Postpartum Weight Retention Among At-Risk Hispanic Women. Am J Prev Med. 2021 Jul;61(1):44-54. doi: 10.1016/j.amepre.2021.02.005. Epub 2021 May 13. PMID: 33994252; PMCID: PMC8217276. Link to article on publisher's site

Related Resources

Link to Article in PubMed

Journal/Book/Conference Title

American journal of preventive medicine

PubMed ID