Table 1 Characteristics of patients with COPD and the whole population

From: Trends in management and outcomes of COPD patients in primary care, 2000–2009: a retrospective cohort study

Variable

Category

All

COPD

Total patient no.

—

2,839,694

92,576

Agea (mean, years)

—

54.8

70.5

Agea (%)

35–39

21.4

0.6

 

40–49

24.2

3.8

 

50–59

19.8

12.9

 

60–69

15.0

27.3

 

70–79

11.5

33.8

 

80–89

8.2

21.6

Gender (%)

Male

49.1

53.8

 

Female

50.9

46.2

Smoking (%)

Non

53.2

14.4

 

Active

21.2

32.6

 

Ex

25.7

53.0

Townsend quintile (%)

1 (least deprived)

27.1

16.5

 

2

22.8

18.1

 

3

20.8

21.3

 

4

17.6

23.8

 

5 (most deprived)

11.8

20.3

FEV1 (mean, l)

—

—

1.4

FVC (mean, l)

—

—

2.4

  1. Abbreviations: COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.
  2. aAge was determined at the mid-point of each patient’s observation period.
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