Table 1.
Demographic, clinical, and risk factors of hepatitis A cases with onsets from 1 January to 31 March 2020 in Yantai, China (n = 103).
| Variable | |
|---|---|
| Gender, n (%) | |
| Male | 74 (71.8) |
| Female | 29 (28.2) |
| Age (median; range in years) | 41;25-70 |
| Presenting symptom, n (%) | |
| Fever | 71 (68.9) |
| Nausea | 68 (66.0) |
| Vomiting | 21 (20.4) |
| Jaundice | 43 (41.7) |
| Anorexia | 38 (36.9) |
| Biochemical, mean ± SD | |
| ALT (IU/L, n.v. 5–40) | 1891 ± 1715 |
| Exposuresa, n (%) | |
| Seafood consumption | 99 (96.1) |
| Shellfish consumption | 88 (85.4) |
| Oyster consumption | 72 (69.9) |
| Raw vegetable or fruit consumption | 30 (29.1) |
| Nonboiled water | 1 (1.0) |
| Traveling | 4 (3.9) |
SD, Standard Deviation; ALT, alanine aminotransferase; n.v.: normal values.
aExposures within 30 days before the onset of symptoms were documented.