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Environmental Health

, 2:10

First Online: 07 August 2003Received: 03 April 2003Accepted: 07 August 2003DOI: 10.1186-1476-069X-2-10

Cite this article as: Sama, S.R., Hunt, P.R., Cirillo, C.P. et al. Environ Health 2003 2: 10. doi:10.1186-1476-069X-2-10


BackgroundHMO databases offer an opportunity for community based epidemiologic studies of asthma incidence, etiology and treatment. The incidence of asthma in HMO populations and the utility of HMO data, including use of computerized algorithms and manual review of medical charts for determining etiologic factors has not been fully explored.

MethodsWe identified adult-onset asthma, using computerized record searches in a New England HMO. Monthly, our software applied exclusion and inclusion criteria to identify an -at-risk- population and -potential cases-. Electronic and paper medical records from the past year were then reviewed for each potential case. Persons with other respiratory diseases or insignificant treatment for asthma were excluded.

Confirmed adult-onset asthma AOA cases were defined as those potential cases with either new-onset asthma or reactivated mild intermittent asthma that had been quiescent for at least one year. We validated the methods by reviewing charts of selected subjects rejected by the algorithm.

ResultsThe algorithm was 93 to 99.3% sensitive and 99.6% specific. Sixty-three percent n = 469 of potential cases were confirmed as AOA. Two thirds of confirmed cases were women with an average age of 34.8 SD 11.8, and 45% had no evidence of previous asthma diagnosis. The annualized monthly rate of AOA ranged from 4.1 to 11.4 per 1000 at-risk members. Physicians most commonly attribute asthma to infection 59% and allergy 14%. New-onset cases were more likely attributed to infection, while reactivated cases were more associated with allergies. Medical charts included a discussion of work exposures in relation to asthma in only 32 7% cases. Twenty-three of these 72% indicated there was an association between asthma and workplace exposures for an overall rate of work-related asthma of 4.9%.

ConclusionComputerized HMO records can be successfully used to identify AOA. Manual review of these records is important to confirm case status and is useful in evaluation of provider consideration of etiologies. We demonstrated that clinicians attribute most AOA to infection and tend to ignore the contribution of environmental and occupational exposures.

Electronic supplementary materialThe online version of this article doi:10.1186-1476-069X-2-10 contains supplementary material, which is available to authorized users.

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Autor: Susan R Sama - Phillip R Hunt - CIH Priscilla Cirillo - Arminda Marx - Richard A Rosiello - Paul K Henneberger - Donald

Fuente: https://link.springer.com/

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