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Table 3 Characteristics of patients with adequate quality spirometry (n = 83) with and without obstructive lung disease *

From: Confirmatory spirometry for adults hospitalized with a diagnosis of asthma or chronic obstructive pulmonary disease exacerbation

Characteristics

Obstructive lung disease

No obstructive lung disease

p-value

n = 65 (78%)

n = 18 (22%)

Clinical diagnosis

   

Asthma exacerbation

39 (83%)

8 (17%)

0.29

COPD exacerbation

26 (72%)

10 (28%)

Age, years

  

<35

11 (79%)

3 (21%)

0.55

35-64

43 (81%)

10 (19%)

≥65

11 (69%)

5 (31%)

Female

42 (72%)

14 (25%)

0.40

BMI, kg/m 2

  

<18.5 (Underweight)

4 (80%)

1 (20%)

0.009

18.5-24.9 (Normal)

16 (100%)

0 (0%)

25-29.9 (Overweight)

15 (88%)

2 (12%)

≥30 (Obese)

30 (67%)

15 (33%)

Median days from hospital admission to spirometry testing (IQR)

1 (1 to 2)

1 (1 to 2)

0.30

  1. Values represent n (row %), unless otherwise noted. Abbreviations: IQR Interquartile range.
  2. * Only in patients for which both raters reported acceptable and reproducible tracings.