Table 3 Correlation between AHI score and other ILD patient variables

Age (years)

0.18

0.1

NS

Height (cm)

0.16

0.2

NS

Weight (kg)

0.13

0.3

NS

BMI (kg/m²)

0.10

0.4

NS

Neck circumference (cm)

0.11

0.4

NS

ODI

0.62

 < 0.001

HS

6MWD (m)

 − 0.07

0.6

NS

FVC %

 − 0.18

0.1

NS

ESS

0.31

0.01

S

EPASP (mmHg)

 − 0.04

0.7

NS

CRP

0.16

0.2

NS

SBQ score

0.28

0.02

S

Minimal O₂

 − 0.36

0.002*

HS

Average O₂

 − 0.22

0.06

NS

TST 90%

0.20

0.09

NS

Lt atrium diameter

0.43

 < 0.001

HS

SO₂ on RA

0.13

0.3

NS

REM %

0.001

0.9

NS

PLM index

0.23

0.06

NS