Volume 23, Number 2—February 2017
Research
Correlation of West Nile Virus Incidence in Donated Blood with West Nile Neuroinvasive Disease Rates, United States, 2010–2012
Table
Characteristic | No. WNV NAT–positive/no. total (%) | Crude OR (95% CI) | Adjusted OR (95% CI) |
---|---|---|---|
Age group | |||
<20 | 13/154,874 (0.01) | Referent | Referent |
21–29 | 17/172,947 (0.01) | 1.17 (0.56–2.41) | 0.96 (0.42–2.20) |
30–39 | 27/164,611 (0.02) | 1.95 (1.01–3.78) | 1.63 (0.74–3.58) |
40–49 | 27/205,907 (0.01) | 1.56 (0.80–3.02) | 1.31 (0.60–2.86) |
>50 |
68/498,320 (0.01) |
1.62 (0.89–2.94) |
1.21 (0.58–2.51) |
Sex | |||
F | 54/566,850 (0.01) | Referent | Referent |
M |
98/629,809 (0.02) |
1.63 (1.17–2.27) |
1.59 (1.13–2.22) |
Race | |||
Nonwhite | 20/280,246 (0.01) | Referent | Referent |
White |
131/826,704 (0.02) |
2.22 (1.38–3.55) |
1.75 (1.06–2.89) |
Region of residence | |||
Northeast | 0/900 | Omitted | Omitted |
West | 75/765,873 (0.01) | Referent | Referent |
Midwest | 44/141,507 (0.03) | 3.17 (2.18–4.60) | 2.54 (1.73–3.73) |
South |
33/288,379 (0.01) |
1.16 (0.77–1.75) |
1.11 (0.73–1.70) |
Year | |||
2010 | 44/413,840 (0.01) | Referent | Referent |
2011 | 18/399,980 | 0.42 (0.24–0.73) | 0.43 (0.24–0.74) |
2012 |
90/382,839 (0.02) |
2.21 (1.54–3.17) |
2.19 (1.52–3.15) |
Month | |||
June | 5/240,481 | Referent | Referent |
July | 28/238,208 (0.01) | 5.65 (2.18–14.64) | 5.44 (2.09–14.13) |
August | 76/241,994 (0.03) | 15.10 (6.11–37.34) | 14.62 (5.90–36.18) |
September | 39/236,036 (0.02) | 7.94 (3.13–20.16) | 8.34 (3.28–21.20) |
October | 4/239,940 | 0.80 (0.21–2.98) | 0.83 (0.22–3.11) |
*Data are from Blood Systems, Inc. (Scottsdale, AZ, USA); a total of 1,196,659 donations were included. OR, odds ratio; WNV, West Nile virus.
Page created: January 17, 2017
Page updated: January 17, 2017
Page reviewed: January 17, 2017
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