Impaired Family Functioning Affects 6-Month and 12-Month Postoperative Weight Loss

Prior cross-sectional research details the high rate of impaired family functioning, a measure of the overall family environment, among adult bariatric surgery patients; however, family functioning has not been explored in relation to adult patient's postoperative outcomes. The objective of this study was to determine how family functioning affects postoperative patient outcomes including readmission rates, early complications, and 6- and 12-month percent total weight loss (%TWL).

An observational design at a single-academic medical center was employed. The sample comprised 98 patients, living with ≥1 family member, who enrolled in one of two concurrent studies at the Center. Patients were followed from their surgical intake through 12 months postsurgery; family functioning was assessed within 2 months of their date of surgery. Chi-square and independent t tests determined significant associations between family functioning with readmission and complication rates. Average family functioning was an independent variable in multivariate linear regression models to determine significant correlates of %TWL at 6 and 12 months postsurgery. Patient age, race, and insurance status were included as covariates.

Patients with higher impaired family functioning had significantly less %TWL at 6 (p=.004) and 12 months (p=.030). Black patients also had significantly lower %TWL at 6 (p=.003) and 12 months (p=.009).

Family functioning and patient race were both correlates of weight loss at 6 months and 12 months. Future research should explore additional family factors as correlates of patient outcomes following bariatric surgery.