Table 5 Comparison of clinical and demographic factors between additional anesthesia and no additional anesthesia groups
From: Risk factors for insufficient ultrasound-guided supraclavicular brachial plexus block
Additional anesthesia group, n = 41 | No additional anesthesia group, n = 228 | |||
|---|---|---|---|---|
Median [IQR], n (%) | Median [IQR], n (%) | p value | 1 − β | |
Age (years) | 64 [41–75] | 59 [40–72] | 0.227 | 0.191 |
Sex (male/female) | 18/23 (43.9/56.1) | 97/131 (42.5/57.5) | 0.871 | 0.039 |
BMI (kg/m2) | 24.5 [21.8–25.6] | 22.5 [20.0–25.4] | 0.009 | 0.619 |
Lidocaine dose (mg/kg) | 1.6 [1.4–1.8] | 1.6 [1.4–2.0] | 0.325 | 0.148 |
Ropivacaine dose (mg/kg) | 2.4 [2.1–2.7] | 2.5 [2.1–3.0] | 0.158 | 0.291 |
Expertise of surgeon (Hand surgeon or resident) | 28/13 (68.3/31.7) | 149/79 (65.3/34.7) | 0.713 | 0.051 |
Systolic blood pressure before surgery (mmHg) | 151 [140–171] | 141 [126–154] | < 0.001 | 0.914 |
DM | 3 (7.3) | 16 (7.0) | 0.945 | 0.027 |
Mental disorder | 1 (2.4) | 6 (2.6) | 0.942 | 0.021 |
Interval from block to surgery (min) | 38 [33–44.5] | 36 [31–40] | 0.034 | 0.588 |
Surgical time (min) | 83 [57–117.5] | 88 [62–121] | 0.296 | 0.162 |
Tourniquet time (min) | 62.5 [43–79.5] | 72 [46–101] | 0.086 | 0.460 |