TABLE 3.

Multivariate cox regression model showing the independent predictive variables of pain recurrence in 43 patients with LBP treated with FJI.

Predictive variables	Adjusted HR for	CI 95%	“p” level
	pain recurrence
Initial model
Sedentary lifestyle	1.6	(0.6–4.6)	0.35
Smoking	6.6	(0.5–86.7)	0.15
Fibromyalgia	1.3	(0.4–4.4)	0.65
Catastrophizing symptoms, PCS ≥ 5	4.0	(1.3–10.2)	0.02
Anxiety symptoms, BAI ≥ 10	0.8	(0.4–3.8)	0.77
Depression symptoms, BAD ≥ 10	1.4	(0.4–5.5)	0.61
Final model
Smoking	12.5	(1.1–138.9)	0.04
Catastrophizing symptoms, PCS ≥ 5	4.4	(1.7–11.3)	0.002

Adjusted HR = Adjusted hazard ratio; CI 95% = confidence interval; PCS = Pain Catastrophizing Scale; BAI = Beck Anxiety Index.