Individual courses of low back pain in adult Danes: a cohort study with 4-year and 8-year follow-up

doi:10.1186/s12891-016-1377-0

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BMC Musculoskelet Disord. 2017; 18: 28.

Published online 2017 Jan 21. doi: 10.1186/s12891-016-1377-0

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Table 3

Four-year patterns of reporting LBP

	41 → 45 years				45 → 49 years
	Percentage of individuals reporting:		Odds of reporting recurrent LBP		Percentage of individuals reporting:		Odds of reporting recurrent LBP
Category LBP	new at 45	recurrent	OR	[95% CI]	new at 49	recurrent	OR	[95% CI]
‘none’	23%	50%	3.8	[2.2;6.4]	21%	53%	4.3	[2.5;7.4]
‘year’	50%	77%	3.5	[2.2; 5.6]	47%	79%	4.3	[2.5; 7.4]
‘month’	37%	65%	3.1	[2.0; 4.9]	29%	54%	2.9	[1.8; 4.8]
‘>30 days’	15%	63%	9.9	[5.6; 17.5]	15%	51%	5.9	[3.2; 10.7]
‘seeking care’	20%	52%	4.2	[2.5; 6.9]	25%	64%	5.2	[3.0; 9.0]
‘non-trivial’	13%	56%	8.8	[4.7; 16.2]	12%	53%	8	[4.2; 15.5]

Overview of individuals reporting new or recurrent LBP after 4 years and odds ratios (OR) for recurrence with 95% confidence intervals (CI) as a measure of positive LBP relative to negative LBP. N = 293 participating at all three time points