Table 1 Demographic characteristics of the participants (n=408)
From: Measurement precision of the disability for back pain scale-by applying Rasch analysis
Characteristic | Mean ± SD (range) percentage |
|---|---|
Age (years) | 59.0±14.8 (15–86) |
  <35 | 8.5% |
  35–49 | 14.3% |
  50–64 | 36.0% |
  65–79 | 35.4% |
  80-86 | 5.8% |
Gender | Â |
  Male | 35.5% |
  Female | 64.5% |
Disease duration (month) | 54.2±79.8 (0.3-600) |
  Acute (<6wk) | 7.8% |
  Subacute (6wk-3mo) | 12.0% |
  Chronic (>3mo) | 80.2% |
VAS score | 5.2±2.8 (0.2-10) |
  Outpatients | 5.3±2.5 |
  Inpatients | 6.2±2.4 (p = 0.001) |
Education | Â |
  Elementary school | 49.2% |
  Secondary school | 31.2% |
  University | 19.6% |
Marital status | Â |
  Single/widow | 23.1% |
  Married | 76.9% |
Occupation | Â |
  Office worker | 10.9% |
  Laborer | 17.8% |
  Housewife | 37.8% |
  Student | 2.2% |
  Retired | 20.8% |
  Unemployment | 10.5% |
Diagnosis | Â |
  Spondylolisthesis | 31.7% |
  Degenerative disc disease | 17.4% |
  Herniated intervertebral disc | 20.4% |
  Fracture | 12.9% |
  Non-specific back pain | 17.6% |