Table 1. Characteristics of 112 morbidly obese patients included in the study.
| Min | Q1 | Median | Q3 | Max | IQR | Mean | SD | 95% CI | |
|---|---|---|---|---|---|---|---|---|---|
| Age (years) | 24 | 42.8 | 47 | 52 | 68 | 9.3 | 46.9 | 8.3 | 45.3, 48.4 |
| BMI (kg/m2) | 34.7 | 41 | 44.8 | 47.7 | 66.2 | 6.7 | 44.8 | 5.8 | 43.7, 45.9 |
| Serum leptin (μg/L) | 12 | 28 | 40 | 48 | 88 | 20 | 38.2 | 14.3 | 35.5, 40.9 |
| Serum IL-6 (ng/L) | 1.5 | 2.5 | 3.4 | 4.3 | 11.3 | 1.82 | 3.8 | 1.9 | 3.4, 4.1 |
| PaO2PRE (mm Hg) | 53.6 | 71. 8 | 78 | 85.8 | 100.3 | 14.0 | 78.7 | 9.1 | 77.0, 80.4 |
| PaO2POST (mm Hg) | 51.4 | 73.0 | 79.5 | 87.1 | 112.2 | 14.2 | 80.7a | 11.1 | 78.6, 82.7 |
| ΔPaO2 (mm Hg) | -63.9 | -5.9 | 0.05 | 7.8 | 65 | 13.8 | 0.13 | 17.3 | -3.1, 3.37 |
| PaCO2PRE (mm Hg) | 24.7 | 34.8 | 38.1 | 40.8 | 51.8 | 6.0 | 37.8 | 4.2 | 37.0, 38.5 |
| PaCO2POST (mm Hg) | 23.2 | 37.0 | 40.1 | 42.9 | 50.1 | 6.0 | 39.7b | 5.2 | 38.8, 40.7 |
| ΔPaCO2 (mm Hg) | -28.2 | -5.4 | 0.85 | 8.5 | 39.9 | 13.9 | 1.94 | 11.7 | -0.24, 4.12 |
BMI, body mass index; CI, confidence interval; IL-6, interleukin 6; IQR, interquartile range; max, maximum; min, minimum; PaCO2POST, postoperative arterial partial pressure of carbon dioxide (PaCO2); PaCO2PRE, preoperative PaCO2; ΔPaCO2, PaCO2POST minus PaCO2PRE; PaO2POST, postoperative arterial partial pressure of oxygen (PaO2); PaO2PRE, preoperative PaO2; ΔPaO2, PaO2POST minus PaO2PRE; Q1, first quartile; Q3, third quartile; SD, standard deviation.
a p = 0.080 for PaO2POST vs. PaO2PRE (paired t-test)
b p<0.0001 for PaCO2POST vs. PaCO2PRE (paired t-test)