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Table 1 Demographics of the total study population and prevalence of radiographic hip osteoarthritis features by cam morphology status

From: High bone mass and cam morphology are independently related to hip osteoarthritis: findings from the High Bone Mass cohort

 

With Cam

Without Cam

Total

N (%) of individuals

N (%) of individuals

N (%) of individuals

Female sex

37 (39.8)

198 (76.4)

235 (66.7)

Sport aged 14–21

 0–1 h per week

5 (7.9)

21 (12.1)

26 (11.0)

 2–3 h per week

18 (28.6)

51 (29.3)

69 (29.1)

 4–7 h per week

15 (23.8)

42 (24.1)

57 (24.0)

 Over 7 h per week

25 (39.7)

60 (34.5)

85 (35.9)

At recruitment

Mean (SD)

Mean (SD)

Mean (SD)

Age in years

62.2 (13.6)

61.4 (11.1)

61.6 (11.8)

Height in cm

171.6 (9.0)

166.3 (8.4)

167.7 (8.8)

Weight in kg

88.4 (15.5)

81.5 (15.8)

83.4 (16.0)

Summed total hip and L1 Z-score

4.7 (3.5)

5.0 (3.3)

4.9 (3.4)

Max total hip Z-score

1.2 (0.2)

1.1 (0.2)

1.2 (0.2)

L1 lumbar spine BMD in g/cm2

1.3 (0.2)

1.3 (0.2)

1.4 (0.2)

 

N (%) of hips

N (%) of hips

N (%) of hips

OA (Croft > 3)

57 (40.1)

79 (14.5)

136 (19.8)

Osteophyte

119 (83.8)

345 (63.2)

464 (67.4)

JSN

60 (42.3)

90 (16.5)

150 (21.8)

Sclerosis

15 (10.6)

19 (3.5)

34 (4.9)

HBM

81 (56.6)

379 (68.8)

460 (66.3)

  1. Abbreviations: BMD Bone mineral density, OA Osteoarthritis, JSN Joint space narrowing, HBM High bone mass, SD Standard deviation