Table 2 Incidence risk of low back pain lasting seven or more consecutive days after one year of follow up (LBP at t1).

	n	LBP at t1
		n	%	95% CI
Total study population	716	90	12.6	(10.1 to 15.0)
Men	283	35	12.4	(8.5 to 16.2)
Women	433	55	12.8	(9.6 to 15.8)
Dutch speaking	504	57	11.4	(8.5 to 14.1)
French speaking	212	33	15.6	(10.7 to 20.4)