| Variable | Cases (Children with developmental disability) n = 68 | Controls (Children without developmental disability) n = 134 | p | |
| Gender | Male | 47 (69.1%) | 79 (58.9%) | |
| Female | 21 (30.9%) | 55 (41.0%) | ||
| ASA | Class 1 | 18 (26.5%) | 86 (64.2%) | |
| Class 2 | 50 (73.5%) | 48 (35.8%) | ||
| Age (Median ± IQR) | 5.0 ± 3.0 | 5.0 ± 3.0 | 0.98 | |
| Weight (Median ± IQR) | 19.7 ± 8.3 | 21.6 ± 8.1 | 0.23 | |
| BMI (Median ± IQR) | 17.5 ± 7.6 | 16.6 ± 3.9 | 0.14 | |
| Type of Sedative Medication** | Nembutal: 68 (100%) | Nembutal: 134 (100%) | 0.15 | |
| Fentanyl: 37 (54.4) | Fentanyl: 79 (58.9) | 0.66 | ||
| Midazolam: 33 (48.5) | Midazolam: 61 (45.5) | 0.59 | ||
| Mean Nembutal Dosage in mg/kg (SD) | 4.77 ± 1.54 | 4.67 ± 1.69 | 0.67 | |
| Mean Fentanyl Dosage in mcg/kg (SD) | 1.15 ± 0.42 | 1.13 ± 0.44 | 0.86 | |
| Mean Midazolam Dosage in mg/kg (SD) | 0.15 ± 0.17 | 0.11 ± 0.14 | 0.1 | |