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Table 1 The prevalence estimates of different definitions of spinal pain in a study of 34,902 Danish twin individuals.

From: Pain in the lumbar, thoracic or cervical regions: do age and gender matter? A population-based study of 34,902 Danish twins 20–71 years of age

Definition of variables

N (%)*

LBP ever

20,053 (57%)

LBP past year

15,093 (43%)**

LBP 1–7 days

3,804 (10%)

LBP 8–30 days

6,168 (18%)

LBP >30 days

4,207 (12%)

Pain radiating into leg(s)

7,651 (22%)

MBP ever

5,966 (17%)

MBP past year

4,535 (13%) **

MBP 1–7 days

1,161 (3%)

MBP 8–30 days

1,633 (5%)

MBP >30 days

1,338 (4%)

Pain radiating into chest

1,846 (5%)

NP ever

14,059 (40%)

NP past year

11,316 (32%) **

NP 1–7 days

2,523 (7%)

NP 8–30 days

4,345 (12%)

NP >30 days

3,641 (10%)

Pain radiating into arm(s)

5,583 (16%)

  1. * Because of the large sample size, confidence intervals would be very narrow (usually 1 unit), and have therefore not been included in the table.
  2. ** The number of days for 1–7 days, 8–30 days and >30 days do not add up to the year-estimates, because the latter have been corrected, if data were missing, based on subsequent answers in relation to site-specific consequences in the past year.
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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