Article
Development and initial testing of Asthma Predictive Index for a retrospective study: an exploratory study.
The Journal of asthma : official journal of the Association for the Care of Asthma - 1 Mar 2015
Wi Chung-Il, Park Miguel A, Juhn Young J
Abstract excerpt
OBJECTIVE: Asthma Predictive Index (API) has been used for predicting asthma in prospective or cross-sectional studies, not for a retrospective study. We aim to develop and validate API for a retrospective study. METHODS: This is a cross-sectional study based on a convenience sample of children who participated in a previous retrospective cohort study. API was operationalized by two or more wheezing episodes in a...
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