Table 3 The fewer the number of episodes of low back pain (LBP) the shorter the duration of this episode and the larger the number of episodes the longer the duration of episodes in a study sample from the general Danish population of 50-yr olds (N=261) followed fortnightly over 1 year
Number of episodes with LBP per subject | Longest duration of episodes of LBP per subject was 1 pain fortnight | Longest duration of episodes of LBP per subject was ≥ 2 pain fortnights | ||
|---|---|---|---|---|
N | (%) | N | (%) | |
1 | 39/57 | (68) | 18/57 | (32) |
2 | 21/41 | (51) | 20/41 | (49) |
3 or 4 | 13/37 | (35) | 24/37 | (65) |