PURPOSE Health coaching by medical assistants could be a financially viable model for providing self-management support in primary care if its effectiveness were demonstrated. We investigated whether in-clinic health coaching by medical assistants improves control of cardiovascular and metabolic risk factors when compared with usual care.
METHODSWe conducted a 12-month randomized controlled trial of 441 patients at 2 safety net primary care clinics in San Francisco, California. The primary outcome was a composite measure of being at or below goal at 12 months for at least 1 of 3 uncontrolled conditions at baseline as defined by hemoglobin A 1c , systolic blood pressure, and low-density lipoprotein (LDL) cholesterol. Secondary outcomes were meeting all 3 goals and meeting individual goals. Data were analyzed using χ 2 tests and linear regression models.RESULTS Participants in the coaching arm were more likely to achieve both the primary composite measure of 1 of the clinical goals (46.4% vs 34.3%, P = .02) and the secondary composite measure of reaching all clinical goals (34.0% vs 24.7%, P = .05). Almost twice as many coached patients achieved the hemoglobin A 1c goal (48.6% vs 27.6%, P = .01). At the larger study site, coached patients were more likely to achieve the LDL cholesterol goal (41.8% vs 25.4%, P = .04). The proportion of patients meeting the systolic blood pressure goal did not differ significantly.CONCLUSIONS Medical assistants serving as in-clinic health coaches improved control of hemoglobin A 1c and LDL levels, but not blood pressure, compared with usual care. Our results highlight the need to understand the relationship between patients' clinical conditions, interventions, and the contextual features of implementation. 2015;13:130-138. doi: 10.1370/afm.1768.
Ann Fam Med
INTRODUCTIONC ardiovascular disease is the leading cause of death in the United States, 1 and it accounts for more than $500 billion of health care spending annually.2 Despite the demonstrated effectiveness of pharmaceutical therapies and lifestyle modifications for improving cardiovascular disease outcomes, 50% of people with hypertension, 43% with diabetes, and 80% with hyperlipidemia have not reached their goals for blood pressure, glycemic control, or lipids, respectively. [3][4][5] One-half of patients do not take their chronic disease medications as prescribed, and only 1 in 10 patients follow recommended guidelines for lifestyle changes, such as smoking cessation or weight loss. 6 Minority and low-income communities bear a disproportionate burden of chronic disease and its complications, 7 and they are less likely to engage in effective self-management of their conditions. 8,9 Contributors to this gap in self-management include a lack of patient understanding of, and agreement with, the care plan, and low confidence and motivation to make healthy choices. or were not designed as randomized trials.17-19 They focused on a single condition such as diabetes or hypertension. [16][17][18][19] Medical assistant health coa...