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Table 1 Percentage of COPD and asthma from total number of admissions and percentage change in admission rates

From: Trends in hospital admissions and prescribing due to chronic obstructive pulmonary disease and asthma in England and Wales between 1999 and 2020: an ecological study

ICD code

Description

Percentage from total number of admissions (%)

Rate of admissions in 1999 per 100,000 persons (95% CI)

Rate of admissions in 2020 per 100,000 persons (95% CI)

Percentage change from 1999 to 2020 (%)

J44.0

“Chronic obstructive pulmonary disease with acute lower respiratory infection”

38.7

105.21 (104.33–106.09)

314.07 (312.65–315.48)

198.5

J44.1

“Chronic obstructive pulmonary disease with acute exacerbation, unspecified”

25.5

116.85 (115.93–117.78)

111.28 (110.43–112.12)

− 4.8

J44.8

“Other specified chronic obstructive pulmonary disease”

0.4

2.89 (2.74–3.04)

1.67 (1.56–1.77)

− 42.4

J44.9

“Chronic obstructive pulmonary disease, unspecified”

5.3

45.23 (44.65–45.81)

20.17 (19.81–20.53)

− 55.4

J45

Asthma (Predominantly allergic asthma, nonallergic asthma, mixed asthma, and asthma, unspecified)

30.0

133.59 (132.60–134.58)

195.24 (194.12–196.36)

46.1

  1. ICD international statistical classification of diseases system