From: Individual courses of low back pain in adult Danes: a cohort study with 4-year and 8-year follow-up
 | Consistency in LBP categories at the ages 41–45–49 | ||
---|---|---|---|
LBP | Each time | Sometimes | Never |
none | 11% | 45% | 44% |
‘year’ | 44% | 45% | 11% |
‘month’ | 17% | 54% | 29% |
‘>30 days’ | 8% | 32% | 60% |
‘seeking care’ | 11% | 44% | 45% |
‘non-trivial’ | 6% | 27% | 67% |