Table 4 Logistic regression analysis of risk factors for additional anesthesia requirement
From: Risk factors for insufficient ultrasound-guided supraclavicular brachial plexus block
Regression coefficient | Standard error | Odds ratio | 95% CI | p value | |
|---|---|---|---|---|---|
Age | 0.01 | 0.01 | 0.99 | 0.97–1.01 | 0.271 |
Sex (Female/Male) | 0.03 | 0.17 | 1.01 | 0.54–2.01 | 0.871 |
BMI | 0.09 | 1.01 | 1.09 | 1.01–1.19 | 0.023 |
Lidocaine dose | − 0.48 | 0.47 | 0.61 | 0.24–1.56 | 0.301 |
Ropivacaine dose | − 0.49 | 0.32 | 0.60 | 0.32–1.15 | 0.121 |
Expertise of operator | 0.06 | 0.18 | 1.14 | 0.56–2.32 | 0.713 |
Systolic blood pressure before surgery | 0.03 | 0.01 | 1.03 | 1.01–1.04 | < 0.001 |
DM | 0.02 | 0.32 | 0.95 | 0.26–3.44 | 0.945 |
Mental disorder | 0.03 | 0.54 | 0.92 | 0.10–7.89 | 0.942 |