Table 4. Duration of pain.

		3-m prevalence [%]		12-m prevalence [%]
	Athletes	Controls	p	Athletes	Controls	p
Duration of LBP:
1–7 days	31	31	ns	21	21	ns
8–30 days	15	10	< 0.001	26	28	ns
> 30 days, but not daily	5	2	< 0.001	18	9	< 0.001
daily	1	2	0.023	2	3	0.020
Duration of NP
1–7 days	29	27	ns	26	25	ns
8–30 days	8	6	< 0.001	18	13	0.005
> 30 days, but not daily	3	2	ns	10	8	0.015
daily	2	2	ns	2	2	ns
Duration of TP
1–7 days	18	13	< 0.001	18	12	< 0.001
8–30 days	7	4	< 0.001	12	10	ns
> 30 days, but not daily	2	1	0.036	6	4	< 0.001
daily	1	1	ns	1*	1*	0.039

LBP = low back pain; m = month; NP = neck pain; ns = not significant TP = thoracic pain;

*optical equality because of rounding to the nearest integer. Unrounded values: Athletes: 1.1%; Controls: 0.6%.