Outcomes Research in Review

Factors Impacting Receipt of Weight Loss Advice from Providers Among Patients with Overweight/Obesity

Halbert CH, Jefferson M, Melvin CL, et al. Provider advice about weight loss in a primary care sample of obese and overweight patients. J Prim Care Community Health 2017 Jun 1:2150131917715336.


 

References

Study Overview

Objective. To examine receipt of provider advice to lose weight among primary care patients who are overweight or obese.

Design. Cross-sectional study.

Setting and participants. Participants were recruited through convenience sampling of primary care practices that were members in a national practice-based research network or part of federally qualified health care system based in the Southeastern United States. Each practice used 1 or more of the following recruitment strategies: self-referral from study flyers posted in practices, given during clinic appointments, or posted on the practice portal (n = 3 practices); mailed invitations to patients part of a practice registry (n = 7 practices); and on-site recruitment by research staff during clinic hours (n = 2 practices). Inclusion criteria included having at least a 3-year history of being a patient in the practice, being aged 18 years or older, and having an overweight or obese status according to Centers for Disease Control definitions (body mass index [BMI] 25.0–29.9 kg/m2 = overweight, ≥ 30 kg/m2 = obese). After completing informed consent, participants completed an interview comprising a 20-minute survey, either in English or Spanish, either in-person or by telephone.

Measures. The survey obtained measures related to sociodemographic characteristics (race, gender, age, marital status, education level, employment status, income level), clinical characteristics (height and weight, history of diabetes/hypertension), psychological variables (readiness to make weight loss or maintenance efforts and confidence in their ability to lose or maintain weight), shared decision-making about weight loss/management (using the SDM-Q-9, with a higher total score indicating greater shared decision-making), and physician advice about weight loss (whether they had ever been advised by a doctor or other health care professional to lose weight or reduce their weight).

Main results. Among the study sample (n = 282), 65% were female, 60% were from racial and ethnic minority groups, 55% were married, 57% had some college education or higher, and 37% had an income level below $20,000/year. The mean age of participants was 53.1 (± 14.4) years. 59% had been advised by their physician to lose weight.

The percentage of participants who reported receiving provider advice was statistically different from 50% using the binomial test (P = 0.0035). Based on bivariate analysis of provider advice about weight loss, women were significantly more likely than men to report that their provider had advised them to lose weight (P = 0.001). Both actual and perceived obesity were associated significantly with receiving provider advice about weight loss (both P = 0.001). Diabetic patients were also significantly more likely than nondiabetic patients to report that their provider had advised them to lose weight (P = 0.01). Participants who reported greater readiness to lose or maintain their weight were more likely to report provider advice about weight loss compared to those with less readiness (P = 0.003). While employed patients, those who had at least some college education, and those who were hypertensive were more likely to report provider advice compared to those who were unemployed, had less education, and were not hypertensive, these associations were not statistically significant (P = 0.06, P = 0.06, P = 0.10, respectively). There were no racial/ethnic differences in receipt of provider advice to lose weight (P = 0.76). Participants with greater shared decision-making were more likely to report provider advice about weight loss (P < 0.001).

Based on results of the multivariate logistic regression analysis, obesity status, perceived obesity, and SDM about weight loss/management had significant independent associations with receiving physician advice about weight loss. Participants with obesity were more likely than those with overweight status to report provider advice (odds ratio [OR] = 1.31, 95% CI = 1.25–4.34, P = 0.001). Similarly, participants who believed they had overweight/obesity had a greater likelihood of reporting provider advice compared with those who did not believe they were obese/overweight (OR = 1.40, 95% CI = 2.43–6.37, P < 0.001). Shared decision making about weight loss/management was associated with an increased likelihood of reporting provider advice (OR = 3.30, 95% CI = 2.62–4.12, P < 0.001).

Conclusions. Many patients with overweight/obesity may not be receiving advice to lose/manage their weight by their provider. While providers should advise patients with overweight/obesity about weight loss and management, patient beliefs about their weight status and perceptions about shared decision-making are important to reporting receipt of provider advice about weight loss/management. Patient beliefs as well as provider behaviors should be addressed as part of efforts to improve the management of obesity/overweight in primary care.

Commentary

Over 35% of adults in the United States have a BMI in the obese range [1], putting them at risk for obesity-related comorbidities [2], often diagnosed and treated within primary care settings. The US Preventive Services Task Force recommends that all patients be screened for obesity and offered intensive lifestyle counseling, since modest weight loss can have significant health benefits [3]. Providers, particularly within the primary care setting, are ideally situated to promote weight loss via effective obesity counseling, as multiple clinic visits over time have the potential to enable rapport building and behavioral change management [4]. Indeed, a 2013 systematic review and meta-analysis of published studies of survey data examining provider weight loss counseling and its association with changes in patient weight loss behavior found that primary care provider advice on weight loss appears to have a significant impact on patient attempts to change behaviors related to their weight [5]. In this study, the authors reported higher rates of physician advice about weight loss compared to other studies, however, the results still demonstrate that based on patient reporting, not all providers are advising weight management or weight loss. Several studies have discussed barriers to weight management and obesity counseling among adults by physicians, which include lack of training, time, and perceived ineffectiveness of their own efforts [6–8].