Table 1 Baseline characteristics of patients.
PARM (n = 25) | PEEP (n = 25) | Combination (n = 25) | P value | |
|---|---|---|---|---|
Age (years) | 70.4 ± 5.5 | 70.3 ± 5.1 | 69.7 ± 5.1 | 0.873 |
Body mass index (kg m−2) | 22.9 ± 3.0 | 21.0 ± 2.4 | 21.7 ± 3.3 | 0.076 |
Predicted body weight (kg) | 59.3 ± 7.7 | 57.4 ± 7.7 | 59.3 ± 7.8 | 0.606 |
Sex (male) | 20 (80.0) | 18 (72.0) | 20 (80.0) | 0.832 |
ASA physical status classification (II/III) | 21/4 | 21/4 | 23/2 | 0.758 |
Pre-operative PPC risk classification (2/3) | 24/1 | 24/1 | 22/3 | 0.609 |
Pre-operative PPCs risk score | 17 [16.5 to 20] | 20 [17 to 23.5] | 20 [17 to 23.5] | 0.112 |
SpO2 (%) | 97 [95.5 to 98] | 97 [96 to 98] | 97 [96 to 98] | 0.669 |
SpO2 < 96% | 6 (24.0) | 2 (8.0) | 2 (8.0) | 0.197 |
Current smokers | 8 (32.0) | 6 (24.0) | 9 (36.0) | 0.739 |
Major abdominal surgery history | 8 (32.0) | 10 (40.0) | 4 (16.0) | 0.209 |
OSAS | 1 (4.0) | 0 (0.0) | 0 (0.0) | 1.000 |
Chronic obstructive pulmonary disease | 1 (4.0) | 0 (0.0) | 1 (4.0) | 1.000 |
Diabetes mellitus | 8 (32.0) | 4 (16.0) | 5 (20.0) | 0.477 |
Chemotherapy | 6 (24.0) | 12 (48.0) | 10 (40.0) | 0.249 |
Radiotherapy | 3 (12.0) | 7 (28.0) | 5 (20.0) | 0.425 |
Loss of body weight > 10% in the last 6 months | 7 (28.0) | 11 (44.0) | 11 (44.0) | 0.441 |
Cardiocerebral vascular diseases | 3 (12.0) | 2 (8.0) | 4 (16.0) | 0.903 |
Hemoglobin (g dl−1) | 11.8 ± 2.5 | 11.9 ± 1.8 | 12.0 ± 1.9 | 0.945 |
Albumin (g dl−1) | 3.59 ± 0.34 | 3.59 ± 0.44 | 3.63 ± 0.24 | 0.890 |
