Table 1 Baseline characteristics of the two groups
Characteristic | Lidocaine group(n = 73) | Control group(n = 77) |
|---|---|---|
Sex(female) | 42 | 39 |
Age(year) | 61.7 ± 9.8 | 64.0 ± 14.4 |
body mass index(BMI, kg.m2–1) | 23.2 ± 2.9 | 22.3 ± 3.7 |
Education (No. of years) | 8(6, 10) | 6(4, 9) |
Duration of anaesthesia(min) | 205(176, 244) | 225(177, 254) |
Duration of surgery(min) | 170(143, 208) | 187(145, 220) |
Preoperative WBC(10^9 cells/L) | 5.6 ± 1.6 | 5.2 ± 1.7 |
Preoperative CPR(µg.mL–1) | 11.1 ± 21.4 | 10.6 ± 19.1 |
Haemoglobinemia (g.L–1) | 116.4 ± 18.5 | 111.5 ± 20.0 |
Creatininemia (µmoI.L–1) | 66.2 ± 15.4 | 70.3 ± 24.9 |
Albuminemia(g.L–1) | 38.0 ± 4.0 | 37.2 ± 3.9 |
ASA grading | Â | Â |
 2 | 60 | 64 |
 3 | 13 | 13 |
MMSE score(preoperative) | 26(24, 27) | 26(24, 27) |
Hypertension(n) | 24 | 30 |
Diabetes(n) | 7 | 10 |
Site of operation | Â | Â |
 Ascending colon | 17 | 18 |
 Transverse colon | 8 | 2 |
 Descending colon | 2 | 3 |
 Sigmoid colon | 21 | 21 |
 Rectum | 24 | 33 |