Barriers to adherence to asthma management guidelines among inner-city primary care providers

Background Health care provider adherence to national asthma guidelines is critical in translating evidence-based recommendations into improved outcomes. Unfortunately, provider adherence to the National Heart, Lung, and Blood Institute (NHLBI) guidelines remains low. Objective To identify barriers to guideline adherence among primary care professionals providing care to inner-city, minority patients with asthma. Methods We surveyed 202 providers from 4 major general medicine practices in East Harlem in New York, New York. The study outcome was self-reported adherence to 5 NHLBI guideline components: inhaled corticosteroid (ICS) use, peak flow (PF) monitoring, action plan use, allergy testing, and influenza vaccination. Potential barriers included lack of agreement with guideline, lack of self-efficacy, lack of outcome expectancy, and external barriers. Results Most providers reported adhering to the NHLBI guidelines for ICS use (62%) and for influenza vaccinations (73%). Self-reported adherence was 34% for PF monitoring, 9% for asthma action plan use, and 10% for allergy testing. Multivariate analyses showed that self-efficacy was associated with increased adherence to ICS use (odds ratio [OR], 2.8; P = .03), PF monitoring (OR, 2.3; P = .05), action plan use (OR, 4.9; P = .03), and influenza vaccinations (OR, 3.5; P = .05). Conversely, greater expected patient adherence was associated with increased adherence to PF monitoring (OR, 3.3; P = .03) and influenza vaccination (OR, 3.5; P = .01). Familiarity with specific guideline components and higher level of training were also predictors of adherence. Conclusions Lack of outcome expectancy and poor provider self-efficacy prevent providers from adhering to national asthma guidelines. Efforts to improve provider adherence should address these specific barriers.