Decreased bone mineral density and associated factors in severe haemophilia A patients: A case-control study
Abstract
INTRODUCTION: Haemophilia patients may exhibit lower levels of bone mineral density (BMD) than the general population for a variety of reasons.
AIM: We aimed to investigate decreased BMD in people with severe adult haemophilia A (PWH) living in eastern Turkey, and to evaluate the related potential risk factors.
METHODS: The study included 41 PWH and 40 healthy volunteers. Dual-energy x-ray absorptiometry (DXA) was used to measure the BMD. Blood tests and body mass index (BMI) were recorded. The Functional Independence Score in Hemophilia (FISH) test was used to measure functional ability status.
RESULTS: There was a significant difference between the PWH and control groups with respect to femoral neck and total hip BMD (in g/cm2 ), but the difference for lumbar spine was not significant (P = .017, P < .001, P = .071, respectively). In PWH, patients under 50 years of age, 19.4% were found to have "lower than expected" BMD levels for their age, while 27.8% showed "low normal" levels. In PWH, osteoporosis was found in 60% of the patients over 50 and osteopenia in 20%. Vitamin D insufficiency and deficiency were present in 63.4% of the PWH, significantly higher than the control group (37.5%; P < .001).
CONCLUSION: The results indicated that the decrease in BMD was significantly greater in patients with severe haemophilia A than in the normal healthy population. This reduction was correlated with BMI, vitamin D and low functional ability status. However, in multivariate analysis,…
How strong is the evidence?
Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 40 participants or records.
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