Table 1 Characteristics of patients enrolled in randomised trial of written plus oral information versus oral information before digestive endoscopy, Lausanne and Geneva, 2000.
| Â | Written and oral information | Oral information |
|---|---|---|
Randomised initially, N | 454 | 458 |
   Not eligible, N (%) | 37 (8.1) | 29 (6.3) |
   Technical enrolment problem, N (%) | 18 (4.0) | 9 (2.0) |
   Cancelled procedure, N (%) | 60 (13.2)* | 41 (9.0) |
Eligible for survey, N | 339 | 379 |
   Participated, N (%) | 278 (82.0) | 299 (78.9) |
Respondents, N | 278 | 299 |
   Women, N (%) | 135 (48.6) | 139 (46.5) |
   Age, mean (SD) | 57.0 (16.9) | 58.7 (16.2) |
   Native French speaker, N (%) | 193 (69.4) | 190 (63.5) |
   Education beyond high school, N (%) | 100 (36.5) | 97 (32.8) |
   Gastroscopy (vs colonoscopy or both), N (%): | 148 (53.2) | 183 (61.2) |
   Duration of procedure, minutes, mean (SD) | 30.8 (24.6) | 27.3 (22.4) |
   Premedication, N (%) | 202 (72.7) | 205 (68.6) |
   Biopsy, polyp excision, dilation, N (%) | 212 (76.3) | 213 (71.2) |
   First endoscopy, N (%) | 134 (48.2) | 139 (46.5) |
   Hospitalised (vs outpatient), N (%) | 100 (36.6) | 120 (41.0) |
   Heart disease, N (%) | 63 (22.7) | 73 (24.4) |
   Lung disease, N (%) | 22 (7.9) | 18 (6.0) |
   Obesity, N (%) | 31 (11.2) | 22 (7.4) |
   Blood pressure treatment, N (%) | 73 (26.3) | 75 (25.1) |
   Beta-blocker treatment, N (%) | 26 (9.4) | 20 (6.7) |