| Titre : | A randomized trial of opinion leader endorsement in a survey of orthopaedic surgeons : Effect on primary response rates. Commentary. (2003) |
| Auteurs : | Mohit BHANDARI ; David-A ASCH ; P.J. DEVEREAUX ; Gordon-H GUYATT ; Scott-D HALPERN ; Emil-H SCHEMITSCH ; Ketan SHANKARDASS ; Sheila SPRAGUE ; Marc-F SWIONTKOWSKI ; Center for Clinical Epidemiology and Biostatics. University of Pennsylvania. Philadelphia. PA. USA ; Centre for Bioethics. University of Pennsylvania. Philadelphia. PA. USA ; Departments of Clinical Epidemiology and Biostatistics. Orthopaedic Surgery. McMaster University. Hamilton. ON. CAN |
| Type de document : | Article |
| Dans : | International journal of epidemiology (vol. 32, n° 4, 2003) |
| Pagination : | 634-638 |
| Langues: | Anglais |
| Mots-clés : | Chirurgie orthopédique ; Chirurgie ; Médecin spécialiste ; Questionnaire ; Thérapeutique ; Fracture ; Homme ; Système ostéoarticulaire [pathologie] ; Traumatisme |
| Résumé : | [BDSP. Notice produite par INIST-CNRS wR0x0HKK. Diffusion soumise à autorisation]. Background : Opinion leaders have been shown to have significant influence on the practice of health professionals and patient outcomes. Methods : Using focus groups, key informants, and sampling to redundancy techniques, we developed a questionnaire of surgeons'preferences in the treatment of tibial shaft fractures. Twenty-two well-respected and widely known orthopaedic traumatologists endorsed the questionnaire. We randomized 395 surgeon members of the Orthopaedic Trauma Association to receive either a questionnaire that included a letter informing them of the opinion leaders'endorsement, or a questionnaire without the endorsement. Results : Surgeons who received the letter of endorsement had a significantly lower response rate at 2,4, and 8 weeks. The absolute difference in response rates was 7.8% (4.6% versus 12.4%, P<0.05) at 2 weeks, 13.1% at 4 weeks (28.6% versus 41.7% P<0.02), and 12.3% at 8 weeks (47.5% versus 59.8% P=0.02). Conclusions : The addition of a letter listing expert surgeons who endorse the survey lead to significantly lower primary response rates. Those interested in influencing physician responses cannot always assume a positive effect from endorsement by opinion leaders. |
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