. Author manuscript; available in PMC: 2015 Jun 15.

Published in final edited form as: Haemophilia. 2012 Dec 17;19(3):426–431. doi: 10.1111/hae.12073

Table 1.

Hip abnormality prevalence by abnormal component^† and subject age and haemophilia severity.

	Total# evaluated (N = 8192) N (%)	Hip abnormality (N = 1372) N (%)	Hip abnormal ROM component (N = 1229) N (%)	Hip replacement component (N = 104) N (%)	Hip target joint component (N = 207) N (%)
Age
2–8 years	1328 (16)	94 (7)^*	88 (7)^*	0^*	7 (1)^*
9–19 years	2861 (35)	444 (16)	424 (15)	0	35 (1)
20–44 years	2945 (36)	537 (18)	464 (16)	31 (1)	110 (4)
45–69 years	1058 (13)	297 (28)	253 (25)	73 (7)	55 (5)
Haemophilia severity
Mild	1844 (23)	226 (12)^*	208 (11)^*	16 (1)^*	23 (1)^*
Moderate	1942 (24)	312 (16)	289 (15)	22 (1)	26 (1)
Severe	4406 (54)	834 (19)	732 (17)	66 (2)	158 (4)

P value <0.0001 from Pearson’s chi-squared test or Fisher exact test for increasing hip abnormality prevalence with increasing age and severity.

^†

Hip abnormality was simultaneously defined by more than one component in multiple subjects.