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Fig. 2 | BMC Pulmonary Medicine

Fig. 2

From: Efficacy of treatment with corticosteroids for fibrotic hypersensitivity pneumonitis: a propensity score-matched cohort analysis

Fig. 2

Kaplan–Meier curves for survival in the entire cohort and the matched cohort. Solid and dotted lines represent the PDN group and the non-PDN group, respectively. a In the entire cohort, the survival rate was significantly worse in the PDN group, with P = 0.040 (hazard ratio [HR], 1.878; 95% confidence interval [CI], 1.029–3.426). The median survival periods were 37 months (95% CI 26–55 months) and NR, respectively. b In the matched cohort, the survival rate was better in the PDN group, with P = 0.032 (HR, 0.250; 95% CI, 0.071–0.886). The median survival durations were NR and 60 months, respectively. CI confidence interval; HR hazard ratio; NR not reached; PDN prednisolone; SD standard deviation

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