• Lawrence S Wissow, Amy Belote, Wade Kramer, Amy Compton-Phillips, Robert Kritzler, and Jonathan P Weiner.
• Johns Hopkins Bloomberg School of Public Health, Baltimore, Md., USA. Lwissow@jhsph.edu
• J Gen Intern Med. 2004 Sep 1;19(9):944-51.

ObjectiveTo determine efficient ways of promoting advance directives among heterogeneous populations of elderly ambulatory patients.DesignOne-year quasi-experimental trial.SettingFive suburban and urban health centers in one region of a large managed care organization. One additional suburban center served as a control site.ParticipantsIndividuals ages 65 and older (N= 2,120) who were continuously enrolled and had a health maintenance visit with their primary care provider during the study year.InterventionPhysician education (oral and written) and physician and patient prompts to discuss advance directives.Main ResultsSixty-six (7.8%) of patients at the intervention centers completed new advance directives, versus 9 of 1,277 (<1%) at the comparison center (P <.001). Patients 75 and older were twice as likely (odds ratio [OR], 2.0; 95% confidence limits [CL], 1.2 to 3.3) as those 65 to 74 to file a new advance directive, and the odds were twice as great (OR, 2.6; 95% CL, 1.4 to 4.6) at centers serving communities with median household income over the state median. Gender, recent hospitalization, emergency room visits, and number of chronic conditions were not related to making new directives nor was predominant ethnicity of the center community (African-American versus white). Adjusted for these factors, the intervention resulted in a 20-fold increase (95% CL, 10.4 to 47.8) in the odds of creating a new advance directive. Doctors reported barriers of time and unwillingness to press discussions with patients.ConclusionsA replicable intervention largely targeting doctors achieved a modest increase in advance directives among elderly ambulatory patients. Future interventions may need to target lower-income patients, "younger" elderly, and more specifically address doctors' attitudes and comfort discussing advance directives.

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