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.