Table 3 Characteristics of study patients
|  | All patients (n = 156) | Diazepam sedation (n = 77) | Propofol sedation (n = 79) | P value |
|---|---|---|---|---|
Age, mean ± SD, years | 67.8 ± 13.5 | 68.7 ± 13.5 | 66.9 ± 13.6 | 0.256 |
Sex, male/female | 94/62 | 45/32 | 49/30 | 0.648 |
BMI, mean ± SD, kg/m2 | 20.6 ± 3.4 | 21.1 ± 4.0 | 20.1 ± 2.8 | 0.162 |
Current or ex-smoker, n (%) | 76 (49) | 33 (43) | 43 (54) | 0.148 |
Alcohol abuse, n (%) | 36 (23) | 22 (29) | 14 (18) | 0.108 |
Regular narcotic/sedative use, n (%) | 33 (21) | 12 (16) | 21 (27) | 0.093 |
Co-morbidities, n (%) | ||||
 Heart disease | 18 (12) | 10 (13) | 8 (10) | 0.576 |
 Lung disease | 14 (9) | 6 (8) | 8 (10) | 0.610 |
 Renal disease | 7 (4) | 4 (5) | 3 (4) | 0.673 |
 Liver disease | 15 (10) | 5 (6) | 10 (13) | 0.192 |
ASA class, n (%) | Â | Â | Â | 0.235 |
 1 | 40 (26) | 24 (31) | 16 (20) |  |
 2 | 95 (61) | 42 (55) | 53 (67) |  |
 3 | 21 (13) | 11 (14) | 10 (13) |  |
Bowel reconstruction methods, n (%) | Â | Â | Â | 0.309 |
 Child | 68 (53) | 39 (51) | 40 (51) |  |
 Roux-en-Y | 53 (41) | 32 (42) | 37 (47) |  |
 Billroth-II | 8 (6) | 6 (8) | 2 (3) |  |
Indications, n (%) | Â | Â | Â | 0.717 |
 Biliary stenosis | 52 (33) | 23 (30) | 29 (37) |  |
 Cholangitis | 37 (24) | 18 (23) | 19 (24) |  |
 Biliary stones | 36 (23) | 19 (25) | 17 (22) |  |
 Obstructive jaundice | 4 (3) | 2 (3) | 2 (3) |  |
 Biliary leaks | 4 (3) | 1 (1) | 3 (4) |  |
 Others | 23 (15) | 14 (18) | 9 (11) |  |
Baseline heart rate, mean ± SD, beats/minute | 71.5 ± 12.4 | 69.7 ± 11.0 | 73.3 ± 13.5 | 0.086 |
Baseline SBP, mean ± SD, mmHg | 122.1 ± 16.8 | 120.7 ± 19.5 | 123.5 ± 13.6 | 0.083 |
Baseline oxygen saturation, mean ± SD, % | 97.5 ± 1.3 | 97.3 ± 1.4 | 97.6 ± 1.2 | 0.110 |