Characteristic | Value |
---|---|
Study population (n) | 418,565 |
Sex, female (%) | 52.7 |
Employee relation (%) | |
Employee | 65.2 |
Spouse | 27.1 |
Child/other | 7.8 |
Region (%) | |
North East | 14.7 |
North Central | 22.3 |
South | 47.2 |
West | 15.8 |
Rural (%) | 14.6 |
Plain film radiograph* (%) | 14.9 |
↵* Proportion of the study population that had a plain film radiograph associated with the reference encounter for low back pain.