Table 1 Total hip and knee arthroplasty patients characteristics, 2001–2012

Total

11,848

100.0

18,972

100.0

Gender

Females

5,898

49.8

9,047

47.7

Males

5,950

50.2

9,925

52.3

Age, years (median, IQR)

80.9

76.4–84.4

79.8

74.7–83.5

THA diagnoses (ICD-10-AM code)

Other primary coxarthrosis (M161)

9,648

81.4

-

-

Coxarthrosis unspecified (M169)

1,109

9.4

-

-

Unspecified osteonecrosis pelvis thigh (M8795)

343

2.9

-

-

Other

748

6.3

TKA Diagnosis (ICD-10-AM Code)

Other primary gonarthrosis (M171)

-

-

16,329

86.1

Gonarthrosis unspecified (M179)

-

-

1,437

7.6

Primary gonarthrosis bilateral (M170)

-

-

489

2.6

Other

-

-

717

3.8

Number of RxRisk-V co-morbidities

0

1,466

12.4

3,290

17.3

1–2

747

6.3

938

4.9

3–4

2,041

17.2

2,785

14.7

5–6

2,888

24.4

4,398

23.2

≥7

4,706

39.7

7,561

39.9

Number of Elixhauser co-morbidities

0

6,087

51.4

9,910

52.2

1–2

4,333

12.1

7,034

37.1

≥3

1,428

12.1

2,028

10.7

Number of Charlson co-morbidities

0

8,529

72.0

13,917

73.4

1–2

2,946

24.9

4,628

24.4

≥3

373

3.1

427

2.3