We evaluated the effect of a randomized trial of gowning on length of visit and number of physical examinations performed in an outpatient clinic. Nineteen senior internal medicine trainees saw 110 patients without gowns and 113 patients with gowns. Patients without gowns were with the trainees 25.2 ؎ 11.9 (mean ؎ SD) minutes versus 24.2 ؎ 10.3 minutes for gowned patients ( p ؍ .51). Ungowned patients were in the examination room a total of 38.5 ؎ 15.9 minutes versus 42.9 ؎ 17.6 minutes for gowned patients ( p ؍ .06). The number of patients that underwent physical examinations was the same (89) for gowned and ungowned groups, and the distribution of the number of examinations by patient group differed only slightly ( p ؍ .88). Gowning did not significantly decrease the length of visit or increase the number of physical examinations performed. T he emphasis on decreased lengths of inpatient stay, increased delivery of primary care, increased requirements to document the content of the visit for billing and accreditation purposes, and expanded primary care training have led to a major increase in patient activity in the ambulatory care setting at teaching institutions. Our trainees proposed to clinic administration that asking patients to put on gowns would reduce visit times and permit the trainees to be more efficient in their practices. The purpose of this study was to demonstrate whether gowning would result in shorter visits and whether it served as a cue that prompted trainees to perform more physical examinations.
METHODSNineteen senior internal medicine trainees (postgraduate year 2 and above) who had a weekly clinic during the 1992-93 academic year participated in the study. One of the 19 was a fellow, and 6 were women. The trainees were not informed about the study in advance. Patients were randomized to gown and no-gown groups, equally balanced, in most circumstances, by intervention and order of intervention within trainees.The clinic nurse asked patients randomized to the gown intervention group to remove their clothing, shoes, and socks, and put on a gown. At the conclusion of each visit, the nurse determined if there was a "used" gown or sheet as the room was prepared for the next patient. A research assistant, located in a central corridor, recorded the total length of time the patient was in the examination room and the time the trainee physician was in the room with the patient.We reviewed charts and recorded which of eight physical examinations were performed: skin, breast, heart, lung, abdominal, genital, rectal, and prostate. The two-sample Student's t test was used to compare the time with trainee and total visit time between the two groups. Ninety-five percent confidence intervals were constructed for the differences between groups in time with trainee and total visit time. The two-sample trend test was used to compare the number of examinations performed.
RESULTSTwo-hundred twenty-three patients (5 women and 218 men) were evaluated during the study period. Onehundred ten were randomiz...