Table 4 Subgroup analysis for 90-day mortality according to dosage of neostigmine and sugammadex
Variable | Multivariable Cox regression model | P-value |
|---|---|---|
Hazard ratio (95% CI) | ||
Neostigmine dosage, mcg kg− 1 (n = 61,124) | ||
 Q1 < 27.5 (n = 15,108) | 1 |  |
 27.5 ≤ Q2 < 31.8 (n = 15,464) | 0.75 (0.53, 1.06) | 0.102 |
 31.8 ≤ Q3 < 36.4 (n = 15,582) | 0.89 (0.63, 1.25) | 0.491 |
 36.4 ≤ Q4 (n = 14,970) | 0.96 (0.66, 1.42) | 0.853 |
Sugammadex dosage, mg kg−1 (n = 4578) | ||
 Q1 < 2.8 (n = 1214) | 1 |  |
 2.8 ≤ Q2 < 3.1 (n = 963) | 0.94 (0.11, 7.78) | 0.955 |
 3.1 ≤ Q3 < 3.6 (n = 1278) | 2.27 (0.34, 15.15) | 0.397 |
 3.6 ≤ Q4 (n = 1123) | 2.91 (0.30, 27.91) | 0.354 |