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Table 1 SPADI test-retest reproducibility (n = 60)

From: Responsiveness of the Shoulder Pain and Disability Index in patients with adhesive capsulitis

Item/Subscale Obs. 1 Obs. 2 SDD ICC
  Mean (SD) Mean (SD)   (95% CI)
   How severe is your pain:     
01 At its worst? 7.2 (2.6) 7.4 (2.6)   
02 When lying on the involved side? 6.7 (2.5) 6.9 (2.4)   
03 Reaching for something on a high shelf? 7.4 (2.3) 7.7 (1.9)   
04 Touching the back of your neck? 3.9 (3.3) 5.1 (3.1)   
05 Pushing with the involved arm? 5.0 (2.9) 5.3 (3.1)   
Pain score: 60.2 (19) 64.7 (21) 21 0.85 (0.76–0.91)
   How much difficulty do you have:     
06 Washing your hair? 5.5 (2.9) 5.6 (2.7)   
07 Washing your back? 7.8 (2.3) 8.1 (1.9)   
08 Putting on an undershirt or pullover sweater? 6.4 (2.2) 5.6 (2.3)   
09 Putting on a shirt that buttons down the front? 3.6 (2.6) 3.9 (2.5)   
10 Putting on your pants? 3.9 (3.0) 4.1 (3.0)   
11 Placing an object on a high shelf? 7.8 (2.1) 8.1 (1.7)   
12 Carrying a heavy object of 10 pounds? 5.8 (3.5) 6.2 (3.4)   
13 Removing something from your back pocket? 6.7 (3.0) 6.8 (2.9)   
Disability score: 59.1 (19) 60.3 (19) 20 0.86 (0.78–0.92)
SPADI score: 59.7 (17) 62.6 (19) 17 0.89 (0.82–0.93)
  1. SD = between-subject standard deviation, SDD = smallest detectable difference, ICC = intraclass correlation coefficient.