TABLE 1

Baseline characteristics including comorbid conditions among patients with a diagnosis of idiopathic pulmonary fibrosis (IPF) and sex- and age-matched controls

IPF casesControls
Subjects6506500
Age years median (IQR)73 (65–78)73 (65–78)
Male457 (70.3)4570 (70.3)
Charlson comorbidity index#
 0268 (41.2)3428 (52.7)
 1129 (19.8)1053 (16.2)
 2105 (16.2)1015 (15.6)
 ≥3148 (22.8)1004 (15.4)
Myocardial infarction79 (12.2)505 (7.9)
Heart failure90 (13.8)370 (5.8)
Peripheral vascular disease69 (10.6)444 (7.0)
Cerebrovascular disease68 (10.5)755 (11.9)
Dementia11 (1.7)136 (2.1)
Rheumatic disease74 (11.4)246 (3.9)
Ulcers47 (7.2)353 (5.6)
Liver disease, mild16 (2.5)76 (1.2)
Diabetes, uncomplicated82 (12.6)476 (7.5)
Hemiplegia0 (0.0)18 (0.3)
Kidney disease30 (4.6)211 (3.3)
Diabetes, complicated39 (6.0)236 (3.7)
Leukaemia5 (0.8)32 (0.5)
Lymphoma9 (1.4)62 (1.0)
Cancer, localised106 (16.3)1231 (19.4)
Liver disease, severe6 (0.9)15 (0.2)
Cancer, nonlocalised8 (1.2)75 (1.2)
HIV and AIDS0 (0.0)0 (0.0)

Data are presented as n (%) unless otherwise stated. IQR: interquartile range. #: categorised according to number of comorbidities.