Table 7

Frequency of exposures mentioned in medical records of confirmed cases.


Occupational Exposures, N (%)
Home Exposures, N (%)
Environmental/Outdoor Exposures, N (%)

Confirmed cases with noted exposure
32 (7)*
53 (11)
61 (13)
Positive Association Noted
23 (72)**
35 (66)
44 (72)

*Percent of all confirmed cases (n = 469). **Percent of confirmed cases with positive association noted for respective exposures

Sama et al. Environmental Health: A Global Access Science Source 2003 2:10   doi:10.1186/1476-069X-2-10