Table 1.
Comparison of demographics for 258 elderly patients receiving epidural anesthesia or PNB
| Total (n=258) | EA group (n=113) | PNB group (n=145) | χ2 | P-value | 95% CI | |
|---|---|---|---|---|---|---|
| Male sex* | 73 (28.3%) | 28 (24.8%) | 45 (31.0%) | 1.225 | 0.330 | |
| Age (years)† | 79.7±6.8 | 78.8±6.5 | 80.1±7.0 | 0.129 | −2.980, −0.385 | |
| Weight (kg)† | 58.8±11.7 | 58.9±10.9 | 58.8±12.3 | 0.921 | −3.032, −2.741 | |
| Height (cm)† | 161.9±7.5 | 161.4±7.3 | 162.2±7.7 | 0.399 | −1.065, −2.665 | |
| BMI (kg/m2)* | 22.27±3.54 | 22.57±3.65 | 22.22±3.75 | 0.448 | −1.269, −0.563 | |
| Surgical site (left)* | 133 (51.6%) | 61 (54.0%) | 72 (49.7%) | 0.476 | 0.490 | |
| ASA status* | 1.557 | 0.459 | ||||
| II | 97 (37.6%) | 45 (39.8%) | 52 (35.9%) | |||
| III | 116 (45.0%) | 52 (46.0%) | 64 (44.1%) | |||
| ≥IV | 45 (17.4%) | 16 (14.2%) | 29 (20.0%) |
Notes: Data are presented as the number (percentage), ratio, or mean ± standard deviation.
*
Chi-square test;
†
two-tailed Student’s t-test.
Abbreviations: BMI, body mass index; CI, confidence interval; EA, epidural anesthesia; ASA, American Society of Anesthesiologists; PNB, peripheral nerve block.