Volume 27, Number 6—June 2021
Research
Case–Control Study of Risk Factors for Acquired Hepatitis E Virus Infections in Blood Donors, United Kingdom, 2018–2019
Iona Smith
, Bengü Said, Aisling Vaughan, Becky Haywood, Samreen Ijaz, Claire Reynolds, Su Brailsford, Katherine Russell, and Dilys Morgan
, Bengü Said, Aisling Vaughan, Becky Haywood, Samreen Ijaz, Claire Reynolds, Su Brailsford, Katherine Russell, and Dilys Morgan
Table 1
Age and sex of participants in case–control study of hepatitis E infections in blood donors, 2018–2019*
| Characteristic | All HEV RNA–positive samples, n = 411 | All HEV RNA–negative samples, n = 848,201 | Cases, n = 117 | Controls, n = 564 |
|---|---|---|---|---|
| Age group, y | ||||
| 17–24 | 24 (5.8) | 87,460 (10.3) | 5 (4.3) | 15 (2.7) |
| 25–44 | 159 (38.7) | 337,240 (39.8) | 31 (26.5) | 184 (32.6) |
| >45 |
228 (55.5) |
423,501 (49.9) |
81 (69.8) |
365 (64.7) |
| Sex | ||||
| F | 165 (40.2) | 486,388 (57.3) | 52 (44.4) | 305 (54.1) |
| Median age, y | 45 | 42 | 48 | 50 |
| Age range, y | 17–80 | 17–95 | 20–78 | 18–78 |
| M | 246 (59.9) | 361,813 (42.7) | 65 (55.6) | 259 (45.9) |
| Median age, y | 49 | 48 | 54 | 52 |
| Age range, y | 18–73 | 17–84 | 21–72 | 17–81 |
*Values are no. (%) participants except as indicated.
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Page updated: May 18, 2021
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