Table 1. Overall statistical description for continuous variables (n = 4904).
| Variables | Statistics |
| Age | 58.1 (48,71) |
| BMI | 23.5 (20.6, 26.1) |
| Midazolam | 3.1 (1, 3) |
| Propofol | 9.4 (5, 11) |
BMI Body Mass Index.
Median (Q25, Q75) are presented in the table.
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