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Table 3 Demographic and clinical characteristics of the study population (n = 17,557)

From: Validation of the recording of idiopathic pulmonary fibrosis in routinely collected electronic healthcare records in England

Characteristic

ONS

% of total (n)

unless otherwise stated

Aurum

% of total (n)

unless otherwise stated

HES-APC

% of total (n)

unless otherwise stated

Total cohort

11,295 (100%)

9,948 (100%)

10,714 (100%)

Demographic

 Median (IQR) age in years

77 (10.3)

77 (13)

77 (14)

 ≥ 65 years

90.0% (n = 10,176)

86.2% (n = 8,191)

85.3% (n = 9,145)

 Male

63.0% (n = 7,123)

63.2% (n = 6,011)

60.7% (n = 6,512)

 Smoking history (ever/current)

48.9% (n = 5,529)

66.2%(n = 6,288)

65.6% (n = 7,030)

Comorbidities

 COPD

18.2% (n = 2,060)

19.0% (n = 1,806)

20.9% (n = 2,240)

 Asthma (in past 2 years)

6.93% (n = 784)

10.1% (n = 959)

10.3% (n = 1,111)

 Lung cancer

3.0% (n = 348)

2.1% (n = 206)

2.8% (n = 305)

 Ischemic stroke

13.4%(n = 1,513)

12.0% (n = 1,142)

13.2% (n = 1,418)

 Heart failure

17.9% (n = 2,024)

17.1% (n = 1,629)

17.6% (n = 1,889)

 Ischemic heart disease

13.4% (n = 1,523)

13.6% (n = 1,300)

13.4% (n = 1,441)

 Myocardial infarction

13.1% (n = 1,481)

13.3% (n = 1,267)

13.2% (n = 1,414)

 Gastroesophageal reflux

17.8% (n = 2,012)

17.6% (n = 1,677)

17.6% (n = 1,892)