Table 2. Baseline demographics and success of sedation.
| Variables | Total (n=105) | Successful sedation (n=60) | Failed sedation (n=45) | P value |
|---|---|---|---|---|
| Age (month)† | 20.0 (9.0–37.0) | 24.5 (11.0–43.0) | 13.0 (8.0–28.0) | 0.024* |
| Weight (kg)† | 11.0 (8.4–13.7) | 11.6 (8.7–15.3) | 9.9 (7.8–11.7) | 0.014* |
| Male, n (%) | 62 (59.0) | 35 (58.3) | 27 (60.0) | 1.000 |
| Ethnicity, n (%) | 0.476 | |||
| Chinese | 47 (46.1) | 23 (38.3) | 24 (53.3) | |
| Malay | 22 (21.6) | 15 (25.0) | 7 (15.6) | |
| Indian | 8 (7.8) | 5 (8.3) | 3 (6.6) | |
| Others | 25 (24.5) | 11 (18.3) | 7 (15.6) | |
| Indications, n (%) | <0.001* | |||
| AABR | 12 (11.4) | 10 (16.7) | 2 (4.4) | |
| CT | 30 (28.6) | 25 (41.7) | 5 (11.1) | |
| DMSA | 4 (3.8) | 3 (5.0) | 1 (2.2) | |
| MAG3 | 3 (2.9) | 3 (5.0) | 0 (0.0) | |
| MRI | 56 (53.3) | 19 (31.7) | 37 (82.2) | |
| Length of procedure | 0.001* | |||
| Long procedure | 75 (71.4) | 35 (58.3) | 40 (88.9) | |
| Short procedure | 30 (28.6) | 25 (41.7) | 5 (11.1) | |
| Sedation details | ||||
| Onset of action (min) | 15.4±7.0 | 14.9±7.7 | 16.2±5.7 | 0.366 |
| Duration of sedation (min) | 88.6±60.7 | 107.2±64.6 | 60.3±40.8 | <0.001* |
| Dose (μg/kg) | 3.1±0.5 | 3.1±0.4 | 3.1±0.5 | 0.372 |
*, P value <0.05; †, median (interquartile range). AABR, automated auditory brainstem response; CT, computerized tomography; DMSA, dimercaptosuccinic acid renal scan; MAG3, mercaptoacetyltriglycine 3 renogram; MRI, magnetic resonance imaging.