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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Spine (Phila Pa 1976). 2011 Jan 1;36(1):63–73. doi: 10.1097/BRS.0b013e3181c953cc

Table 1.

Characteristics of the Study Sample

Characteristic Midlumbar Nerve
Root Impingement-
L2, L3, or L4+
(n=25)
Low Lumbar Nerve
Root Impingement-
L5 or S1+
(n=29)
Nerve Root
Impingement
at any level+
(n=54)
Age (yrs) 61.4 (13.8) 48.6 (13.6) 54.5 (15.0)
Female (%) 9 (36.0%) 4 (13.8%) 13 (24.1%)
Symptom duration (wks) 3.9 (2.5) 4.6 (3.0) 4.3 (2.8)
Oswestry Disability index (0–100) 42 (21) 49 (21) 46 (21)
VAS Leg Pain (0–10) 7.2 (2.2) 7.0 (2.7) 7.1 (2.5)
VAS Back Pain (0–10) 4.8 (3.2) 5.4 (3.4) 5.1 (3.3)
Self-Acquired Comorbidity
Questionnaire (0–45)
4.6 (4.0) 1.4 (2.3) 2.8 (3.5)
+

Mean (S.D.) or N (%)