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Table 2 Number of claims per region in the pre- and post-implementation period

From: Does the implementation of a care pathway for patients with hip or knee osteoarthritis lead to fewer diagnostic imaging and referrals by general practitioners? A pre-post-implementation study of claims data

 

Requested diagnostic imaging

 

Initial orthopaedic consultation

 

Pre

Post

Pre

Post

Average per 1000 insured persons (N)

Average per 1000 insured persons (N)

Percentage change (%) *

Average per 1000 insured persons (N)

Average per 1000 insured persons (N)

Percentage change (%) *

Intervention region

 Hip-related

15.19

13.45

– 11.5

10.92

13.14

+  20.3

 Knee-related

12.72

9.51

– 25.2

5.93

6.47

+  9.1

 Other joints

35.45

32.14

– 9.3

3.07

3.60

+  17.3

Control region

 Hip-related

15.94

15.43

– 3.2

11.30

13.50

+  19.5

 Knee-related

13.24

12.91

– 2.5

5.37

6.77

+  26.1

 Other joints

43.95

43.73

– 0.5

5.04

5.34

+  6.0

  1. * – = percentage change is negative (a decrease), and + = percentage change is positive (an increase)