Table 4 Symptom correlation value (correlation value \(\ge\) 0.967).

From: A supported decision-making model for idiopathic pulmonary fibrosis based on feature screening and optimized neural network

Symptom

Correlation

Rank

Symptom

Correlation

Rank

Tongue color

0.985

1

Suffocation

0.968

14

Coating color

0.983

2

Feverish sensations in palms and soles

0.967

15

Pulse 1

0.983

3

Shallow breathing and less speech

0.967

16

Coating texture

0.981

4

Hoarseness

0.967

17

Pulse 2

0.98

5

Mental exhaustion

0.967

18

Cough

0.98

6

Stomach gastric upset

0.967

19

Expectoration

0.977

7

Sallow facial complexion

0.967

20

Phlegm color

0.972

8

Yellow urine

0.967

21

Gasping

0.972

9

Phlegm nature

0.967

22

Distending headache

0.968

10

Nasal congestion

0.967

23

Dry skin and Pruritus

0.968

11

Hard to cough out

0.967

24

Pain in the subcostal region

0.968

12

Cough with blood in the phlegm

0.967

25

A sticky, greasy taste

0.968

13