Table 2.

Accuracy statistics (with 95% confidence interval) for individual variables for predicting success

Variable associate with success	Sensitivity 95% CI	Specificity 95% CI	Positive likelihood ratio 95% CI
Age (cut-off point ≥31)	0.64 (0.43–0.81)	0.68 (0.58–0.77)	2.02 (1.34–3.03)
BMI (cut-off point ≤22.3)	0.48 (0.28–0.68)	0.62 (0.51–0.71)	1.25 (0.78–2.01)
Mode of onset: traumatic (Y/N)	0.05 (0.003–0.26)	0.78 (0.69–0.85)	0.21 (0.03–1.50)
Prior history of LBP (Y/N)	0.85 (0.76–0.92)	0.30 (0.17–0.47)	1.22 (0.98–1.52)
Pain below the knee (Y/N)	0.20 (0.08–0.41)	0.61 (0.50–0.70)	0.51 (0.22–1.15)
Manual work (Y/N)	0.92 (0.82–0.97)	0.34 (0.22–0.48)	1.39 (1.14–1.70)
Retiree (Y/N)	0.33 (0.02–0.87)	0.18 (0.12–0.26)	0.41 (0.08–2.02)
Standing ranked as worse position (Y/N)	0.89 (0.76–0.96)	0.24 (0.16–0.35)	1.18 (1.01–1.38)
Sitting ranked as best position (Y/N)	0.90 (0.77–0.96)	0.25 (0.16–0.36)	1.20 (1.02–1.41)
Right straight leg raise (≥67.5°)	0.72 (0.50–0.87)	0.44 (0.35–0.54)	1.29 (0.96–1.74)
Neurological deficit involvement (Y/N)	0.97 (0.82–1.00)	0.19 (0.13–0.27)	1.29 (1.13–1.47)
FABQ-work subscale (≤21)	0.72 (0.50–0.87)	0.63 (0.53–0.73)	1.97 (1.39–2.80)