Table 3

Characteristics of patients with adequate quality spirometry (n = 83) with and without obstructive lung disease *
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/m2
<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

Values represent n (row %), unless otherwise noted. Abbreviations: IQR Interquartile range.

* Only in patients for which both raters reported acceptable and reproducible tracings.

Prieto Centurion et al.

Prieto Centurion et al. BMC Pulmonary Medicine 2012 12:73   doi:10.1186/1471-2466-12-73

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