Restoring patients to their baseline FEV1pp
Our fully-adjusted PS matching model (Model 2) suggests no difference in final FEV1 improvement at discharge between the treated and untreated groups. Steroid use was not associated with restoration of the CF patient to their baseline FEV1pp (fully-adjusted β=-0.025, 95% CI: -0.071, 0.020; Table 3). Patients who received steroid therapy restored to an estimated 90.7% (standard error=2.1) of their baseline FEV1pp, while patients who did not receive a steroid restored to an estimated 93.3% (SE=1.2) of their baseline FEV1pp; the difference in restoration of baseline FEV1pp was 2.5% lower for encounters in which CF patients were given a steroid (p-value=0.271). This was not statically significant.