Variables that were significantly different or showed a trend toward significance (p<0.10) between treatment groups at baseline were included as potential confounding factors.
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Clinical and cost effectiveness of switching asthma patients from fluticasone-salmeterol to extra-fine particle beclometasone-formoterol: a retrospective matched observational study of real-world patients.
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The sentences
Variables that were significantly different — or showed a trend towards significance — between treatment groups at baseline were included as potential confounding factors.