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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Spine J. 2013 Oct 23;14(8):1611–1621. doi: 10.1016/j.spinee.2013.09.044

Table 2. Baseline Demographic Characteristics for Included Patients Based on Physical Therapy Use.

(Other comorbidities include: stroke, cancer, fibromyalgia, chronic fatigue syndrome, post-traumatic stress disorder, alcohol/drug dependency, lung, liver, kidney, blood vessel, nervous system, migraine, anxiety)

Had Physical Therapy During the First 6 Weeks (n=90) No Physical Therapy During the First 6 Weeks (n=154) p-value
Age 66.9 (11.8) 66.3 (9.5) 0.67
Sex (female) 36 (40%) 61 (40%) 0.94
Body Mass Index 29.1 (6.3) 29.4 (5.6) 0.66
Race (white) 80 (89%) 134 (87%) 0.82
Education (at least some college) 61 (68%) 94 (61%) 0.36
Marital Status (married) 56 (62%) 113 (73%) 0.093
Work Status
 Full or part-time 25 (28%) 54 (35%) 0.24
 Retired 50 (56%) 73 (47%) 0.22
 Other 15 (16%) 27 (18%) 0.86
Compensation (receiving any) 3 (3%) 15 (10%) 0.15
Current Smoker (yes) 8 (9%) 15 (10%) 0.99
Co-Morbidities
 Hypertension 39 (43%) 70 (45%) 0.85
 Diabetes 17 (19%) 22 (14%) 0.44
 Osteoporosis 13 (14%) 17 (11%) 0.56
 Heart Problem 21 (23%) 48 (31%) 0.24
 Stomach Problem 17 (19%) 37 (24%) 0.44
 Depression 6 (7%) 19 (12%) 0.23
 Other 29 (32%) 56 (36%) 0.61
Treatment Prior to Enrollment
 Physical Therapy (yes) 64 (71%) 110 (71%) 0.93
 Injection (yes) 41 (46%) 89 (58%) 0.086
Symptom Duration (> 6 months) 42 (47%) 85 (55%) 0.25
SF-36 – Bodily Pain 37.6 (18.2) 39.8 (22.1) 0.42
SF-36 – Physical Functioning 39.5 (24.7) 40.1 (25.6) 0.87
Oswestry Disability Index 38.7 (18.1) 37.3 (18.9) 0.58
Stenosis Bothersomeness Index 12.9 (5.6) 13.4 (5.6) 0.45
Back Pain Bothersomeness 4.0 (1.7) 3.8 (1.8) 0.58
Leg Pain Bothersomeness 3.9 (1.8) 4.2 (1.7) 0.27
Treatment Preference
 Non-Surgical 62 (69%) 89 (58%) 0.085
 Surgical 8 (9%) 30 (19%) 0.028
 Not Sure 20 (22%) 35 (23%) 0.93
Radiating Symptoms Present 62 (69%) 131 (85%) 0.005
Pseudoclaudication Present 69 (77%) 128 (83%) 0.29
Any Neurological Deficit (reflex, sensory or motor) 53 (59%) 97 (63%) 0.62
Stenosis Levels
 L2 – L3 26 (29%) 40 (26%) 0.73
 L3 – L4 62 (69%) 102 (66%) 0.78
 L4 – L5 80 (89%) 146 (95%) 0.15
 L5 – S1 26 (29%) 46 (30%) 0.99
Stenosis Levels (mod/severe)
 None 3 (3%) 5 (3%) 0.97
 One 32 (36%) 53 (34%) 0.86
 Two 37 (41%) 68 (44%) 0.64
 Three or more 18 (20%) 28 (18%) 0.73
Stenosis Locations
 Central 77 (86%) 133 (86%) 0.99
 Lateral Recess 63 (70%) 124 (81%) 0.086
 Neuroforamen 32 (36%) 56 (36%) 0.99
Stenosis Severity
 Mild 3 (3%) 5 (3%) 0.97
 Moderate 46 (51%) 66 (43%) 0.21
 Severe 41 (46%) 83 (54%) 0.21