High maternal self-efficacy is associated with meeting Institute of Medicine gestational weight gain recommendations

Autoři: Lyra Halili aff001;  Rebecca H. Liu aff001;  Ashley Weeks aff001;  Raywat Deonandan aff002;  Kristi B. Adamo aff001
Působiště autorů: School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada aff001;  Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0226301



Fetal exposure to an intrauterine environment affected by maternal obesity and excessive gestational weight gain increases the likelihood of infants born large for gestational age and childhood obesity. This study examined behavioural factors and lifestyle practices associated with women’s perceived attainability of meeting the 2009 Institute of Medicine (IOM) weight gain guidelines.


Cross-sectional data were collected from pregnant (n = 320) and postpartum (n = 1179) women who responded to the validated Canadian Electronic Maternal (EMat) health survey. Consenting women completed the survey through REDCap a secure, web-based data capture platform. Multiple logistic regression analyses were used to evaluate correlates associated with meeting or not meeting IOM recommendations. Odds ratios (ORs) were adjusted for relevant behavioural and sociodemographic covariates.


There were no significant differences between adjusted and unadjusted ORs for self-efficacy, barriers, and facilitators to weight gain during pregnancy. Women who reported worry regarding weight gain were significantly less likely to meet IOM guidelines (OR = 0.48, 95% CI = 0.33–0.69). Perceived controllability of behaviour was significantly associated with meeting IOM guidelines. An internal locus of control for weight gain was associated with an increased odds of meeting guidelines when women perceived to be in control of their weight gain (OR = 1.75, 95% CI = 1.29–2.37), healthy and exercised (OR = 1.91, 95% CI = 1.34–2.71), and when no barriers to healthy weight gain were perceived (OR = 1.43, 95% CI = 1.04–1.95); whereas, an external locus of control in which women viewed weight gain as beyond their control, was associated with a significantly reduced odds of achieving guidelines (OR = 0.58, 95% CI = 0.39–0.88).


Self-efficacy and perceived controllability of behaviour are key factors to consider when developing pregnancy-specific interventions to help women achieve guideline-concordant weight gain and ensure the downstream health of both mother and infant.

Klíčová slova:

Behavior – Exercise – Obesity – Physical activity – Pregnancy – Psychological and psychosocial issues – Surveys – Weight gain


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