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Table 4 Variables that predict impaired DLCO in mild COVID-19 patients (n = 139 patients)

From: Clinical predictors of lung function in patients recovering from mild COVID-19

       

95% CI for odds ratio

Variables

B

S.E

Wald

df

Sig

Odds ratio

lower–upper

Age

0.094 [0.053, 0.143]

0.02

17.0

1

0.000

1.10

1.05 to 1.15

Restriction (1 = yes, 0 = no)

2.49 [1.34, 3.79]

0.62

16.3

1

0.000

12.1

3.61 to 40.41

Blocked nose (yes = 1; no = 0)

 − 2.29 [− 3.79, − 1.05]

0.69

11.0

1

0.001

0.10

0.03 to 0.39

Excessive sweating (yes = 1, no = 0)

 − 2.51 [− 4.43, − 0.92]

0.89

8.0

1

0.005

0.08

0.01 to 0.46

Constant

 − 5.91 [− 8.79, − 3.54]

1.33

19.8

1

0.000

0.003

0.0002 to 0.0365

  1. Brackets represent the 95% CI. The model was accurate 81% of the time, i.e., correctly classifying 81% of the cases [85% (93/110) of the negative cases (true negative rate, specificity) and 69% (20/29) of the positive cases (true positive rate, sensitivity). The false-positive rate was 46%, and the false-negative rate was 9%. The positive predictive value was 54%, and the negative predictive value was 91%. The area under the curve was 0.89 (Standard error = 0.03) 95% CI = 0.83 to 0.94). Seven outliers (5%) were removed (Standardised residuals ≥ 3.0)
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BMC Pulmonary Medicine

ISSN: 1471-2466

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