TABLE 4.

Association of FABQW Scores and 6-Month Minimally Clinical Important Difference ODQ Scores for Patients Participating in These Clinical Trials

Cut-off Threshold	Cumulative Percentage	+LR (95% CI)	−LR (95% CI)
FABQW >5	20.6%	1.19 (1.04-1.34)	0.31 (0.16-0.46)
FABQW >10	30.6%	1.16 (1.01-1.31)	0.64 (0.49-0.79)
FABQW >15	45.0%	1.42 (1.27-1.57)	0.46 (0.31-0.61)
FABQW >20	65.6%	2.35 (2.20 -2.50)	0.30 (0.15-0.45)
FABQW >25	83.1%	2.67 (2.52-2.82)	0.65 (0.50-0.80)
FABQW >30	90.6%	2.50 (2.35-2.65)	0.82 (0.67-0.97)
FABQW >35	95.6%	5.15 (5.00-5.30)	0.83 (0.68-0.98)
FABQW >40	99.4%	Insufficient data	Insufficient data

Abbreviations: CI, confidence interval; FABQW, Fear-Avoidance Beliefs Questionnaire work scale; +LR, positive likelihood ratio; −LR, negative likelihood ratio; ODQ, Oswestry Disability Questionnaire.