Figure 3From: Evidence suggesting that oral corticosteroids increase mortality in stable chronic obstructive pulmonary diseaseHazard ratio for death by long-term oral corticosteroids (LTOC) treatment. Model 1: multiple-variable Cox model in pre-matching cohort. Model 2: single-variable Cox model in the propensity-score-matched cohort. Model 3: multiple-variable Cox model in the propensity-score-matched cohort. [ ]: 95%CI.Back to article page