Table 1

Age- and gender-specific prevalence of MBL among 2098 blood donors age 45 years or older in a Midwestern US regional blood center between 2010 and 2011

AgeWomenMenAll*
NPrevalence estimate (95% CI)NPrevalence estimate (95% CI)NPrevalence estimate (95% CI)
45-54 y 7/406 1.7 (0.7-3.5) 24/398 6.0 (3.9-8.8) 31/805 3.9 (2.6-5.4) 
55-64 y 27/357 7.6 (5.0-10.8) 38/440 8.6 (6.2-11.7) 65/798 8.1 (6.3-10.3) 
65 y or older 18/205 8.8 (5.3-13.5) 35/288 12.2 (8.6-16.5) 53/495 10.7 (8.1-13.8) 
All ages 52/968 5.4 (4.0-7.0) 97/1126 8.6 (7.0-10.4) 149/2098 7.1 (6.0-8.3) 
AgeWomenMenAll*
NPrevalence estimate (95% CI)NPrevalence estimate (95% CI)NPrevalence estimate (95% CI)
45-54 y 7/406 1.7 (0.7-3.5) 24/398 6.0 (3.9-8.8) 31/805 3.9 (2.6-5.4) 
55-64 y 27/357 7.6 (5.0-10.8) 38/440 8.6 (6.2-11.7) 65/798 8.1 (6.3-10.3) 
65 y or older 18/205 8.8 (5.3-13.5) 35/288 12.2 (8.6-16.5) 53/495 10.7 (8.1-13.8) 
All ages 52/968 5.4 (4.0-7.0) 97/1126 8.6 (7.0-10.4) 149/2098 7.1 (6.0-8.3) 
*

The denominators in this column include a total of 4 donors whose gender was unreported.

Number of donors with MBL/number of all donors in the category.

Prevalence estimate per 100 persons.

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