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Table 7 Frequency of exposures mentioned in medical records of confirmed cases.

From: A longitudinal study of adult-onset asthma incidence among HMO members

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