| SPI group (N = 31) | Control group (N = 31) | P-value |
---|---|---|---|
Age (years) | 47.1 ± 11.6 | 48.8 ± 13.4 | 0.616 |
Sex (male/female) | 16/15 | 11/20 | 0.153 |
Height (cm) | 163.0 ± 9.2 | 164.1 ± 7.2 | 0.606 |
Weight (kg) | 63.4 ± 11.7 | 63.2 ± 12.0 | 0.959 |
BMI (kg/m2) | 23.7 ± 2.8 | 23.3 ± 3.6 | 0.657 |
ASA classification (grade I/II) | 15/16 | 16/15 | 0.500 |