Table 1 Demographic characteristics and surgery related factors of the patients
Characteristics | Patients with increased surgical drain output | P | |
|---|---|---|---|
Yes (n = 36) | No (n = 181) | ||
Age (years) | 60.67 ± 8.18 | 54.41 ± 10.05 | 0.001 |
Sex, n (%) | 0.484 | ||
Male | 20(55.6) | 89(49.2) | |
Female | 16(44.4) | 92(50.8) | |
BMI (kg/m2) | 24.62 ± 4.04 | 25.44 ± 3.05 | 0.165 |
Preoperative systolic pressure | 132.92 ± 15.14 | 130.99 ± 14.64 | 0.474 |
Preoperative diastolic pressure | 78.25 ± 11.79 | 78.64 ± 11.33 | 0.850 |
OPLL in the surgical level, n (%) | 18(50.0) | 33(18.2) | 0.000 |
Diabetes mellitus, n (%) | 9(25.0) | 18(9.9) | 0.012 |
History of taking aspirin, n (%) | 6(16.7) | 15(8.3) | 0.120 |
History of smoking, n (%) | 15(41.7) | 44(24.3) | 0.033 |
ASA classification, n (%) | 0.791 | ||
I–II | 32(88.9) | 158(87.3) | |
III–IV | 2(11.1) | 23(12.7) | |
Number of discs involved | 2.42 ± 0.50 | 2.02 ± 0.65 | 0.001 |