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Table 1 Baseline characteristics of the patient population (n = 104)

From: Predictors of Shoulder Pain and Disability Index (SPADI) and work status after 1 year in patients with subacromial shoulder pain

  Frequency Mean
  (percent) (SD)
Socio-demographic variables:   
Age   48 (10.7)
Education:   
   ≤ 12 years at school 60 (57.7%)  
   University/College 44 (42.3%)  
Work status:   
   Working 57 (54.8%)  
   Not working 41 (39.4%)  
   Retired 6 (5.8%)  
Variables from questionnaire:   
Duration of pain:   
   3-6 months 34 (32.7%)  
   6-12 months 30 (28.8%)  
   >12 months 40 (38.5%)  
Medication:   
   Daily or weekly 49 (47.1%)  
   Not regularly 55 (52.3%)  
Scorings:   
   SPADI*   46.9 (21.3)
   Pain at rest (9-point)   3.5 (2.0)
   Health status (EQ-VAS)   67.7 (18.3)
   Prev shoulder pain (0,1) 64 (61.5%)  
   Previous physiotherapy (0,1) 47 (45.2%)  
   Distress (HSCL 25)   1.5 (0.47)
   Self-efficacy for pain 1(easy- impossible)   3.9 (1.3)
   Neck pain 48 (46.6%)  
Occupational factors:   
How often carry 10 kilos at work?   
   seldom/never 50 (53.8%)  
   sometimes 35 (37.6%)  
   extremely/often 8 (8.6%)  
How often work above shoulder level?   
   seldom/never 36 (38.7%)  
   sometimes 38 (40.9%)  
   extremely/often 19 (20.4%)  
Active range of motions affected side:   
   Flexion aff side   157.6 (25.1)
   Hand- behind- back**   13 (median)
  1. Continuous variables: Mean values ± SD, Categorical variables: Frequency, median, %
  2. * The Shoulder Pain and Disability Index
  3. Self-efficacy for pain: A sumscore of 4 questions (mean)
  4. **The position of the thumb in reference to the pelvic (trochanter major = 1) and level of columna