Table 2.
Demographic and clinical characteristics of persons with Vibrio parahaemolyticus infection associated with seafood consumption, Cholera and Other Vibrio Illness Surveillance (COVIS), 1988–2010
| ‘Only clam’ consumption* n/N (%) | ‘No clam’ consumption† n/N (%) | Total observations | |
|---|---|---|---|
| Male | 51/71 (72%) | 715/1125 (64%) | 1196 |
| Age, median (range), N | 50 (17–86), 71 | 44 (1–92), 1090 | 1161 |
| Race | |||
| White | 49/53 (92%) | 751/920 (82%) | 973 |
| African-American | 3/53 (6%) | 83/920 (9%) | 973 |
| Hispanic | 5/32 (16%) | 54/316 (17%) | 348 |
| Any pre-existing condition‡ | 31/72 (43%) | 390/1135 (34%) | 1207 |
| Diabetes | 7/59 (12%) | 73/1079 (7%) | 1138 |
| Alcoholism | 1/56 (2%) | 30/1052 (3%) | 1108 |
| Duration of illness, days, median (range), N | 5 (1–30), 48 | 7 (<1–280), 969 | 1017 |
| Isolation from blood§ | 0/72 (0%) | 14/1135 (1%) | 1207 |
| Hospitalized | 19/47 (29%) | 210/1117 (19%) | 1164 |
| Died | 0/66 (0%) | 5/1108 (0%) | 1174 |
*
Ill persons reported clam consumption and reported that they did not consume any additional seafood items.
†
Ill persons reported seafood consumption of crab, lobster, mussels, oysters, shrimp, crawfish, fish, and/or other shellfish, but not clams.
‡
Defined as alcoholism, diabetes, peptic ulcer, gastric surgery, heart disease, haematological disease, immunodeficiency, liver disease, malignancy, and/or renal disease.
§
Includes persons with only blood isolates and persons with blood and other isolate.