Table 2 Multiple logistic regression of progression for PRISm in the training cohort.

From: Nomogram to predict progression from preserved ratio impaired spirometry to chronic obstructive pulmonary disease

Variable

OR

95%LCI

95%UCI

P-value

Age

1.0298

1.004

1.046

0.024*

Dyspnea

2.250

1.023

5.057

0.046*

FEV1pred%

0.972

0.946

0.997

0.032*

FEV1/FVC

0.911

0.869

0.951

< 0.001*

Family history of respiratory disease

2.918

0.770

14.936

0.146

Respiratory complications

3.866

1.524

10.182

0.005*

CT signs of emphysema

1.403

0.589

3.443

0.450

Red blood cell

3.323

1.729

6.884

< 0.001*

  1. P value less than 0.05(*) is considered significant. All variables with meaningful p-values screened by multivariate logistic regression are included in the table.
  2. CI confidence interval, FVC forced vital capacity, FEV1 forced expiratory volume in 1 s, OR odds ratio, PRISm preserved ratio impaired spirometry.
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