Table 1 Descriptive data of the study population
From: Absence of low back pain to demarcate an episode: a prospective multicentre study in primary care
Variable | Dropouts | Excluded | Study sample |
|---|---|---|---|
Number of subjects | 18 | 22 | 222 |
Age in years, mean (SDa) | 43 (11) | 41 (14) | 44 (11) |
Sex distribution, % | |||
Men | 56 | 64 | 50 |
Women | 44 | 36 | 49 |
Main type of occupation, %: | |||
Sitting | 38 | 29 | 43 |
Standing | 13 | 19 | 22 |
Varying | 37 | 28 | 28 |
Heavy | 12 | 24 | 7 |
Pain intensity 0–10, mean (SDa) | 3.9 (3.1) | 5.4 (2.3) | 4.3 (2.2) |
Presence of leg pain, % | 59 | 47 | 49 |
Pain duration >30 days, % | 33 | 57 | 59 |