| |
Mean
|
sd
|
Range
|
N
|
|---|
|
Age
|
40.0
|
11.2
|
20–75
|
106
|
|
Body mass index
|
26.7
|
4.75
|
19.8–43.0
|
85
|
|
Years since first LBP episode
|
8.3
|
8.0
|
<1–33
|
104
|
|
Disability score (out of 18)
|
7.13
|
4.543
|
0 – 17
|
119
|
|
Pain level (out of 100)
|
42.7
|
25.7
|
0 – 100
|
117
|
|
Proportion with constant LBP
|
.23
|
.420
|
-
|
106
|
- Notes: RCLBP = recurrent or chronic low back pain. sd = Standard deviation; N = number with complete data. Disability score was assessed on the modified Roland-Morris RM18 (Stratford et al. (1997); Pain level was patient-rated on a horizontal 10 cm visual analog scale.
