Table 7.

Differences in premorbid and episode specific factors between subjects who did and did not completed follow up

Characteristic	Completed 12 month follow up		P value*
	Yes (n=180)	No (n=66)
Men	74	25	0.647
Women	106	41
Age (years):
18-29	18	15	0.021
30-44	57	25
45-59	61	14
60-75	44	12
First episode of low back pain:
Yes	28	12	0.621
No	152	54
Satisfied with employment situation:
Yes	87	29	0.607
No	93	36
Radiating leg pain:
No	69	29	0.426
Yes	111	37
Widespread pain:
No	150	59	0.239
Yes	30	7
Spinal restrictions:
⩽1	71	28	0.386
⩾2	96	29

^*Groups were compared with χ² test.