Table 2

Base-line description of 984 patients.

Variable
Subgroups
Frequency
Percentage

Sex
Men
506
52

Women
471
48

Not stated
7
< 1

Age
0–20
43
4

21–50
586
60

≥ 50
355
36

LBP
Yes
961
98

No
23
2

Leg pain
Yes
461
47

No
523
53

Pain intensity at baseline
None
16
2

Mild
183
19

Moderate
443
45

Severe
281
29

Unbearable
59
6

Days with pain at baseline
Max 2 wks
363
37

> 2 wks
621
63

Constant pain past year
Yes
637
65

No
347
35

Days with pain past yr
< 30 days
437
44

≥ 30 days
547
56

Pain turning in bed
Yes
515
53

No
452
47

Pain when sleeping
Yes
397
41

No
570
59

Pain putting on socks/shoes
Yes
639
66

No
334
34

Pain in walking
Yes
527
54

No
443
46

Pain getting up from sitting
Yes
686
70

No
290
30

Number of disabilities
0
76
8

1
141
15

2
191
20

3
192
20

4
178
19

5
174
18

General health
Excellent/good
924
94

Less than good
54
6

Pain in neck and/or mid-back past year
No
444
45

Yes < 30 days
281
29

Yes ≥ 30 days
247
25

Body mass index
Underweight/Normal weight
455
47

Overweigh/obese
512
53

Better directly after treatment
Yes
635
67

No
317
33

Malmqvist et al. Chiropractic & Osteopathy 2008 16:13   doi:10.1186/1746-1340-16-13