TABLE.
Characteristics of patients (N = 31) with acute dichlorvos (DDVP) pest strip–related illness — seven U.S. states and Canada, 2000–2013
| Characteristic | No. | (%) |
|---|---|---|
| Age group (yrs) | ||
| ≤19 | 1 | (3) |
| 20–64 | 24 | (77) |
| ≥65 | 4 | (13) |
| Unknown | 2 | (6) |
| Sex | ||
| Female | 24 | (77) |
| Male | 7 | (23) |
| Body system/Organ affected * | ||
| Neurologic | 21 | (68) |
| Respiratory | 17 | (55) |
| Gastrointestinal | 13 | (42) |
| Other | 11 | (35) |
| Skin | 7 | (23) |
| Eye | 7 | (23) |
| Case classification | ||
| Possible | 30 | (97) |
| Probable | 1 | (3) |
| Severity of illness † | ||
| Low | 26 | (84) |
| Moderate | 5 | (16) |
| Route of exposure § | ||
| Respiratory | 28 | (90) |
| Dermal | 5 | (16) |
| Location of exposure | ||
| Home | 24 | (77) |
| Workplace (Store/Office) | 3 | (10) |
| Other (Boat/Car) | 3 | (10) |
| Unknown | 1 | (3) |
| Label violation status | ||
| Applied DDVP in areas occupied by humans ≥4 hours/day | 18 | (58) |
| Excessive application | 2 | (6) |
| Undetermined¶ | 11 | (35) |
*
Sum exceeds 100% because some patients had more than one affected body system/organ.
†
Low severity cases usually resolve without treatment and cause minimal time lost from work (<3 days). Moderate severity cases are not life threatening but require medical treatment and result in <6 days lost from work.
§
The sum exceeds 100% because two cases had both routes of exposure.
¶
Insufficient data were available to determine whether the DDVP strip usage resulted in a label violation.