From: Accuracy of physical examination for chronic lumbar radiculopathy
Predictor | L4 nerve root impingement | L5 nerve root impingement | S1 nerve root impingement | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Sens | Spec | +LR | −LR | Sens | Spec | +LR | −LR | Sens | Spec | +LR | −LR |
Clinician concluded L4 nerve root impingement | 0.33 (0.06–0.79) | 0.95 (0.89–0.97) | 6.28 (1.06–37.21) | 0.70 (0.32–1.57) | 0.10 (0.03–0.26) | 0.95 (0.89–0.98) | 2.15 (0.51–9.06) | 0.94 (0.83–1.07) | * | * | * | * |
Clinician concluded L5 nerve root impingement | 0.33 (0.06–0.79) | 0.68 (0.59–0.76) | 1.05 (0.21–5.30) | 0.98 (0.43–2.20) | 0.47 (0.30–0.64) | 0.73 (0.63–0.81) | 1.74 (1.04–2.93) | 0.73 (0.51–1.04) | 0.26 (0.13–0.45) | 0.66 (0.56–0.75) | 0.77 (0.38–1.55) | 1.12 (0.85–1.46) |
Clinician concluded S1 nerve root impingement | 0.33 (0.06–0.79) | 0.38 (0.30–0.47) | 0.54 (0.11–2.68) | 1.75 (0.76–4.03) | 0.43 (0.27–0.61) | 0.32 (0.23–0.43) | 0.64 (0.42–0.99) | 1.74 (1.12–2.69) | 0.74 (0.55–0.87) | 0.43 (0.33–0.53) | 1.29 (0.97–1.72) | 0.61 (0.31–1.20) |