Fig. 3From: Marked deterioration in the quality of life of patients with idiopathic pulmonary fibrosis during the last two years of lifeRelationships between Health-related quality of life domains (RAND-36) two years before death. The curves were derived from a 5-knot restricted cubic splines regression models. The models were adjusted for age and gender. The grey area represents 95% confidence intervals. Dashed lines mark Finnish general population levelsBack to article page