Skip to main content

Table 3 (a) DOATS and (b) DOAT scores for COVID-19 deterioration based on optimism-corrected regression coefficients of the original models

From: Development and external validation of the DOAT and DOATS scores: simple decision support tools to identify disease progression among nonelderly patients with mild/moderate COVID-19

 

(a)

(b)

Variable

Category

Midpoint1

Difference2

Coefficient

Regression unit3

Score

Category

Midpoint1

Difference2

Coefficient

Regression unit3

Score

Age, years

   

0.041

     

0.046

  
 

0–17

8.5

-15.5

 

-0.636

-2

0–17

8.5

-15.5

 

-0.713

-2

 

18–30

24 (ref)

0

 

0

0

18–30

24 (ref)

0

 

0

0

 

31–40

35.5

11.5

 

0.472

2

31–40

35.5

11.5

 

0.529

1

 

41–50

45.5

21.5

 

0.882

3

41–50

45.5

21.5

 

0.989

3

 

51–64

57.5

33.5

 

1.374

5

51–64

57.5

33.5

 

1.541

4

Temperature, °C

            
 

≤ 36.9

  

ref

0

0

≤ 36.9

  

ref

0

0

 

37.0–37.9

  

0.268

0.268

1

37.0–37.9

  

0.359

0.359

1

 

≥ 38.0

  

1.58

1.58

6

≥ 38.0

  

1.719

1.719

5

Diabetes or obesity

            
 

No

  

ref

0

0

No

  

ref

0

0

 

Yes

  

0.933

0.933

3

Yes

  

1.068

1.068

3

SpO2, %

   

-0.275

        
 

94

94

-5

 

1.375

5

      
 

95

95

-4

 

1.1

4

      
 

96–97

96.5

-2.5

 

0.688

3

      
 

98–100

99 (ref)

0

 

0

0

      
  1. 1Midpoint for each category of continuous variables
  2. 2Difference in each midpoint from the reference
  3. 3For continuous variables, each difference is multiplied by the regression coefficient for that predictor. For binary and categorical variables, the "regression units" are simply the regression coefficients for that predictor.
  4. Coronavirus disease 2019, COVID-19; comorbidities of diabetes/obesity, age, body temperature, and oxygen saturation, DOATS; comorbidities of diabetes/obesity, age, and body temperature, DOAT
Back to article page

BMC Pulmonary Medicine

ISSN: 1471-2466

Contact us