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Table 1 Agreement statistics

From: Agreement, reliability and validity in 3 shoulder questionnaires in patients with rotator cuff disease

 

Test (SD)

Retest (SD)

Mean difference (95% CI)*

p-value

Sw

Repeatability coefficient

WORC

44.4 (15.1)

45.0 (16.1)

-0.6 (-3.0 to 1.7)

0.59

6.2

17.2

OSS

43.1 (15.4)

41.3 (12.9)

1.8 (-0.4 to 4.0)

0.11

5.8

16.1

SPADI

51.4 (17.8)

52.6 (18.5)

-1.2 (-3.9 to 1.5)

0.38

7.1

19.7

  1. Agreement estimated by the difference between test and retest, the within-standard deviation (Sw), and the repeatability coefficient.
  2. * 95% CI For paired t-test under null hypothesis = no difference between test and retest score. 95% CI = 95% confidence interval. SD = standard deviation
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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