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Table 3 Serum vitamin D at different inhaled steroids doses and ACT scores

From: Asthma in the elderly: a study of the role of vitamin D

  I.C.S. dose (mcg/day) Score Vitamin D (ng/ml) P value
I.C.S. >400 mcg/day 687 ± 248 - 22.8 ± 9.6  
     0.27
I.C.S. ≤400 mcg/day 134 ± 107 - 26.6 ± 8.5  
ACT ≤19 - 17 ± 1.7 19 ± 5.6  
     0.045
ACT >19 - 23.9 ± 1.3 25.7 ± 9.6  
  1. I.C.S. = Inhaled corticosteroids.