TABLE 1.

Description of Study Sample (n = 970)

	Mean (±SD)
Age	49.8 (±15.7)
Number of medical comorbidities (range)	1.2 (±1.5)(0–11)
Oswestry Disability Index score	35.8 (±18.2)
Back pain intensity	6.9 (±2.4)
Leg pain intensity	5.7 (±3.3)

	Proportions (%)
Female	56.4
Body mass index
Normal	40.0
Overweight/Obese	60.0
Chronicity risk
High	23.9
Medium	31.4
Low	44.6
Oswestry Disability Index
Severe	39.0
Moderate	40.0
Minimal	21.0
Dominant pain pattern
Back pain with flexion	41.8
Back pain with extension	31.0
Constant leg pain	16.9
Intermittent leg pain	10.3