Table 1.
Prevalence estimates of different definitions of back pain (N = 34,902)
| n | (%) | |
|---|---|---|
| LBPever | 20,053 | (57) |
| LBPyear | 15,093 | (43) * |
| LBP < 8 days | 3,804 | (10) |
| LBP 8-30 days | 6,168 | (18) |
| LBP > 30 days | 4,207 | (12) |
| Radiating pain into leg(s) | 7,651 | (22) |
| MBPever | 5,966 | (17) |
| MBPyear | 4,535 | (13) * |
| MBP < 8 days | 1,161 | (3) |
| MBP 8-30 days | 1,633 | (5) |
| MBP > 30 days | 1,338 | (4) |
| Pain radiating into chest | 1,846 | (5) |
| NPever | 14,059 | (40) |
| NPyear | 11,316 | (30) * |
| NP < 8 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) |
*The numbers of positive replies in the day intervals 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.