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Table 2 Demographics, comorbid conditions and prosthesis use in all patients undergoing THA and for those revised within 8 years of surgery

From: A comparison of survival models for prediction of eight-year revision risk following total knee and hip arthroplasty

Variable

All THA N = 151,113

Revised N = 4415

Median (IQR) age in years

73 (68-79)

73 (67-78)

N (%) female

90,153 (59.7)

2498 (56.6)

N (%) cemented femoral

66,537 (44)

1534 (34.7)

N (%) bearing surface

 Ceramic/ceramic

28,886 (19.1)

1036 (23.5)

 Ceramic/cross-linked polyethylene

27,249 (18)

698 (15.8)

 Metal/cross-linked polyethylene

94,978 (62.9)

2681 (60.7)

N (%) head size

 ≤ 28 mm

29,724 (19.7)

995 (22.5)

 32 mm

64,854 (42.9)

1761 (39.9)

 36 mm

53,376 (35.3)

1558 (35.3)

 ≥ 40 mm

3159 (2.1)

101 (2.3)

N (%) anticoagulants

20,990 (13.9)

658 (14.9)

N (%) antiplatelet medications

27,645 (18.3)

899 (20.4)

N (%) anxiety

16,146 (10.7)

627 (14.2)

N (%) arrhythmia

9092 (6)

290 (6.6)

N (%) congestive heart failure

11,708 (7.7)

410 (9.3)

N (%) depression

37,159 (24.6)

1402 (31.8)

N (%) diabetes

16,689 (11)

494 (11.2)

N (%) Gastro-oesophageal reflux disease

65,911 (43.6)

2194 (49.7)

N (%) glaucoma

9824 (6.5)

286 (6.5)

N (%) gout

11,325 (7.5)

372 (8.4)

N (%) hyperlipidaemia

70,365 (46.6)

1990 (45.1)

N (%) hypertension

78,101 (51.7)

2270 (51.4)

N (%) hypothyroidism

14,282 (9.5)

430 (9.7)

N (%) ischaemic heart disease (angina)

9576 (6.3)

309 (7)

N (%) ischaemic heart disease (hypertension)

50,495 (33.4)

1512 (34.2)

N (%) osteoporosis/Paget’s

15,157 (10)

501 (11.3)

N (%) pain

82,787 (54.8)

2714 (61.5)

N (%) inflammation pain

83,078 (55)

2714 (61.5)

N (%) chronic airways disease

29,633 (19.6)

967 (21.9)

N (%) steroid responsive

22,730 (15)

805 (18.2)