Abstract
Suboptimal asthma control during pregnancy may affect perinatal outcomes. US guidelines recommend questionnaires to assess asthma control including the Asthma Control Test (ACT). To validate telephone administration of a modified version of ACT during pregnancy. MotherToBaby Pregnancy Studies (2011-2013) enrolled 159 pregnant women with asthma. Participants were interviewed by telephone at intake, at approximately gestational weeks 20 and 32, and postpartum. The ACT was modified to address dyspnea specifically due to asthma; the modified version is the Pregnancy Asthma Control Test (p-ACT). Women answered the p-ACT and guideline-based asthma impairment questions and reported asthma course changes and exacerbations. Possible p-ACT scores ranged from 5 to 25; higher score indicated better control. Reliability, criterion validity, construct validity, prospective validity, and responsiveness were assessed. Cronbach's alpha for internal consistency was similar across time points (0.84-0.90). The p-ACT score varied by impairment; for example, at intake, the mean score was 23.2 for well-controlled versus 13.7 for very poorly controlled asthma. The p-ACT score change between interviews differed by asthma course; for example, women repo...Continue Reading
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