Effect of the first 12 months of early treatment with inhaled corticosteroids (initiated in the year following the first ambulatory treatment for asthma) in reducing the risk of admission to hospital for asthma
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3-150 The odds ratios for regular treatment with inhaled corticosteroids, initial or subsequent, were estimated using a conditional logistic regression model and adjusted for age at the initiation of treatment and sex. Regular treatment with theophylline was used as the reference category.
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3-151 The odds ratios for irregular treatment with inhaled corticosteroids, initial or subsequent, were estimated using a conditional logistic regression model and adjusted for age at the initiation of treatment. Regular treatment with theophylline was used as the reference category.
