摘要：Objectives. The objective of this study was to improve the immunization rates of primary care practices using a team approach. Methods. Practices performed 35 random chart abstractions at 2 time points and completed a survey about immunizations at baseline and 12 months after intervention. Data were collected for the following immunizations: influenza, pneumococcal, tetanus diphtheria (Td)/tetanus diphtheria pertussis (Tdap), hepatitis A, hepatitis B, meningococcal, varicella, herpes zoster, and human papilloma virus. Between baseline and after intervention, practice teams were given feedback reports and access to an online educational tool, and attended quality improvement coaching conference calls. Results. Statistically significant improvements were seen for Td/Tdap (45.6% pre-intervention, 55.0% post-intervention; P ≤ .01), herpes zoster (12.3% pre-intervention, 19.3% post-intervention; P ≤ .01), and pneumococcal (52.2% pre-intervention, 74.5% post-intervention; P ≤ .01) immunizations. Data also revealed an increase in the number of physicians who discussed herpes zoster and pneumococcal vaccinations with their patients (23.2% pre-intervention, 43.3% post-intervention; P ≤ .01 and 19.9% pre-intervention, 43.0% post-intervention; P ≤ .01, respectively) as well as an increase in physicians using the Centers for Disease Control and Prevention immunization schedule (52.9% pre-intervention, 88.2% post-intervention; P ≤ .02). Conclusions. The immunization rates of the primary care practices involved in this study improved. The need for improving quality is pervasive in the primary care setting, involving physicians, their practice teams, and administrative staff. The issue of low quality is well documented 1–3 and is not partial to any 1 disease condition. 4–15 Poor quality is a result of our medical system’s orientation to the urgent, its focus on acute and not chronic care, lack of adherence to evidence-based guidelines, and an increasing number of patients with complex medical conditions. 2 Quality is characterized as a systems issue rather than an individual one, 16 which has led efforts to focus on the practice team. Practice teams have been shown to improve quality in primary care. 17,18 The issues with poor quality in primary care extend to the practice of adult immunizations. 19 It is estimated that between 50 000 and 70 000 US adults die each year because of diseases that could be prevented by vaccination. 20 For example, influenza is the sixth leading cause of death for adults and contributes to at least 200 000 hospitalizations and 36 000 deaths annually. 21,22 Economic costs associated with influenza are projected to be $87.1 billion. 23 Adult vaccination guidelines, such as those published by the Centers for Disease Control and Prevention (CDC) and Advisory Committee on Immunization Practices, 24 are increasingly evidence-based and are a good reference for practices to measure themselves against when doing immunization practice redesign work. Although childhood vaccinations have become a public health success, adult vaccination rates are low, prompting the movement toward “lifespan immunizations.” 20,25 However, quality gaps and missed opportunities for vaccination exist between the number of patients who are recommended to receive vaccinations and those who actually receive them. 26–30 A variety of barriers at the practice, patient, economic, and social level help explain these missed opportunities. For instance, only 60% of physicians reported using CDC and Advisory Committee on Immunization Practice guidelines as their reference for adult immunizations, and most often reported recommending vaccinations at well visits compared with sick visits. 31 Physicians also reported multiple barriers to vaccinating patients, including lack of health insurance, fear of needles, and misconception of the safety and efficacy of vaccinations. 31 In turn, patients consistently reported that their physicians do not recommend vaccinations. 31,32 A comprehensive quality approach was considered to be more effective than mere guideline dissemination because the latter has not been shown to be successful alone in changing practice patterns. 33,34 The American College of Physicians (ACP) developed this quality improvement program to help physicians and practice teams learn about the current recommendations and best practices for adult immunization. The goal of this prospective study was to improve the immunization practices of primary care practices by using a team approach.
