RT Journal Article SR Electronic T1 Card Studies for Observational Research in Practice JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP 63 OP 68 DO 10.1370/afm.1199 VO 9 IS 1 A1 John M. Westfall A1 Linda Zittleman A1 Elizabeth W. Staton A1 Bennett Parnes A1 Peter C. Smith A1 Linda J. Niebauer A1 Douglas H. Fernald A1 Javan Quintela A1 Rebecca F. Van Vorst A1 L. Miriam Dickinson A1 Wilson D. Pace YR 2011 UL http://www.annfammed.org/content/9/1/63.abstract AB PURPOSE Observational studies that collect patient-level survey data at the point-of-care are often called card studies. Card studies have been used to describe clinical problems, management, and outcomes in primary care for more than 30 years. In this article we describe 2 types of card studies and the methods for conducting them. METHODS We undertook a descriptive review of card studies conducted in 3 Colorado practice-based research networks and several other networks throughout the United States. We summarized experiences of the State Networks of Colorado Ambulatory Practices and Partners (SNOCAP). RESULTS Card studies can be designed to study specific conditions or care (clinicians complete a card when they encounter patients who meet inclusion criteria) and to determine trends and prevalence of conditions (clinicians complete a card on all patients seen during a period). Data can be collected from clinicians and patients and can be linked. CONCLUSIONS Card studies provide cross-sectional descriptive data about clinical care, knowledge and behavior, perception of care, and prevalence of conditions. Card studies remain a robust method for describing primary care.