Weight loss is most successful in heart attack survivors when their partners join in the effort to diet, according to a new study.

This follow-up study investigated whether partner involvement in lifestyle programs had an impact on behavior change. "If partners contribute to adopting healthy habits, it could become an important recommendation to avoid recurrent heart attacks," explained Ms. Verweij.
A total of 824 patients were randomly assigned to the intervention group (lifestyle programs on top of usual care) or control group (usual care alone).
This analysis focused on the 411 patients in the intervention group, who were referred to up to three lifestyle programs for weight reduction, physical activity, and smoking cessation depending on their needs and preferences. Partners could attend for free, and nurses encouraged them to participate. Partner participation was defined as attending at least once.
Nearly half (48%) of partners participated in lifestyle interventions. Compared to those without a partner, patients with a participating partner were more than twice as likely (odds ratio 2.45) to improve in at least one of the three areas (weight loss, exercise, smoking cessation) within a year.
When the influence of partners was analyzed in the three areas separately, patients with a participating partner were most successful in reducing weight compared to patients without a partner (odds ratio 2.71). "Patients with partners who joined the weight loss program lost more weight compared to patients with a partner who did not join the program," said Ms. Verweij.
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Ms. Verweij noted that the study did not find more improvement in smoking cessation or physical activity when partners actively participated. "These lifestyle issues might be more subject to individual motivation and persistence, but this hypothesis needs more investigation," she said.
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