Prevalence of serum monoclonal bands (M component) in patients by age and bone mineral density status

Prevalence of serum M component
Age
 No of patients
 No (%) of patients (n=799)
 No (%) with normal bone mineral density or osteopenia (n=408)
 No (%) with osteoporosis (n=366)
<70
594
16 (2.7)
7 (2.0)
9 (3.9)
70-79
169
8 (4.7)
1 (2.1)
7 (6.2)
≥80
36
3 (8.3)
1 (11.1)
2 (8.3)
Total
799
27 (3.4)
9 (2.2)*
 18{dagger} (4.9){ddagger}

* 95% confidence interval 0.8% to 3.6%.

{dagger} 95% confidence interval 2.7% to 7.1%.

{ddagger} P<0.05 ({chi}2 test) compared with patients with normal bone mineral density.

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