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Table 1 Measures of shoulder health and general health from billing data for shoulder osteoarthritis patients by physician specialty (N = 572)

From: A comparison of one-year treatment utilization for shoulder osteoarthritis patients initiating care with non-orthopaedic physicians and orthopaedic specialists

Patient Characteristics

 

Total Study

Sample (N = 572)

Non-Orthopaedic Physician

(N = 98)

Orthopaedic Specialist

(N = 474)

Age

Mean

60.3

61.5

60.1

(95% CI)

(59.2, 61.4)

(58.9, 64.1)

(58.9, 61.3)

Male Sex

n (%)

302 (52.8)

44 (44.9)

258 (54.4)

(95% CI)

(48.6, 56.9)

(34.8, 55.3)

(49.8, 59.0)

Insurance type

 Public

n (%)

307 (53.7)

45 (45.9)

262 (55.3)

(95% CI)

(49.5, 57.8)

(35.8, 56.3)

(50.7, 59.8)

 Private

n (%)

219 (38.3)

48 (48.9)

171 (36.1)

(95% CI)

(34.3, 42.4)

(38.7, 59.3)

(31.7, 40.6)

 Worker’s compensation

n (%)

35 (6.1)

2 (2.0)

33 (7.0)

(95% CI)

(4.3, 8.4)

(0.2, 7.2)

(4.8, 9.6)

 Other

n (%)

11 (1.9)

3 (3.1)

8 (1.7)

(95% CI)

(0.9, 3.4)

(0.6, 8.7)

(0.7, 3.3)

Concurrent Shoulder Diagnosesa

 Rotator Cuff Tear

n (%)

173 (30.2)

16 (16.3)

157 (33.1)

(95% CI)

(26.5, 34.2)

(9.6, 25.2)

(28.9, 37.6)

 Rheumatoid Arthritis

n (%)

7 (1.2)

7 (7.1)

0 (0.0)

(95% CI)

(0.6, 2.7

(2.9, 14.2)

(0.0, 1.2)

 Humerus Fracture

n (%)

6 (1.0)

0 (0.0)

6 (1.3)

(95% CI)

(0.4, 2.3)

(0.0, 3.7)

(0.5, 2.7)

 Instability

n (%)

9 (1.6)

0 (0.0)

9 (1.9)

(95% CI)

(0.7, 3.0)

(0.0, 3.7)

(0.9, 3.6)

 Adhesive capsulitis

n (%)

19 (3.3)

1 (1.0)

18 (3.8)

(95% CI)

(2.0, 5.1)

(0.03, 5.5)

(2.2, 5.9)

Charlson Comorbidity Indexb

 Score 0

n (%)

223 (69.0)

55 (68.0)

168 (69.4)

(95% CI)

(63.7, 74.0)

(56.6, 77.8)

(63.2, 75.2)

 Score 1

n (%)

54 (16.7)

15 (18.5)

39 (16.1)

(95% CI)

(12.8, 21.2)

(10.7, 28.7)

(11.7, 21.4)

 Score 2

n (%)

38 (11.8)

7 (8.6)

31 (12.8)

(95% CI)

(8.5, 15.8)

(3.5, 17.0)

(8.9, 17.7)

 Score 3

n (%)

4 (1.2)

2 (2.5)

2 (0.8)

(95% CI)

(0.3, 3.1)

(0.3, 8.6)

(0.1, 2.9)

 Score 4

n (%)

2 (0.6)

1 (1.2)

1 (0.4)

(95% CI)

(0.08, 2.2)

(0.03, 6.7)

(0.01, 2.3)

Healthcare utilization in the 365 days prior to index shoulder visit

 Patients who visited a NOP

n (%)

221 (38.6)

70 (71.4)

151 (31.9)

(95% CI)

(34.6, 42.7)

(61.4, 80.1)

(27.7, 36.3)

 Number of visits to NOPc

Mean

4.1

4.3

4.0

(95% CI)

(3.6, 4.7)

(3.6, 5.0)

(3.3, 4.8)

 Patients who visited an OS

n (%)

88 (15.4)

18 (18.4)

70 (14.8)

(95% CI)

(12.5, 18.6)

(11.3, 27.5)

(11.7, 18.3)

 Number of visits to OSd

Mean

2.2

2.1

2.3

(95% CI)

(1.9, 2.6)

(1.5, 2.7)

(1.9, 2.7)

  1. aAmong all OA patients
  2. bAmong patients with healthcare utilization in previous 365 days
  3. cAmong patients having one or more visit with non-orthopaedic physician
  4. dAmong patients having one or more visit with an orthopaedic specialist
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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