Table 3 Predictors of mortality in CTD-ILD

Age per 10y increase

1.03 (1.01, 1.05)

< 0.001

1.0 (1.0, 1.1)

0.002

Male vs. female

1.8 (1.1, 3.0)

0.03

2.5 (1.2, 4.9)

0.010

 Caucasian vs. non-Caucasian

2.1 (1.1, 3.9)

0.03

1.4 (0.6, 3.4)

0.51

 EA vs. non-EA

0.7 (0.3, 1.7)

0.48

0.5 (0.1, 1.4)

0.17

 SA vs. non-SA

0.9 (0.3, 2.4)

0.81

1.1 (0.3, 3.9)

0.94

 FN vs. non-FN

3.2 (1.3, 7.5)

0.009

4.7 (1.3, 16.4)

0.02

Pos. vs. neg. Smoking

1.2 (0.8, 1.9)

0.32

1.1 (0.6, 1.9)

0.85

Income per 10 K increase

1.0 (0.9, 1.1)

0.53

1.0 (0.9, 1.1)

0.71

 SSc vs. RA

2.6 (1.1, 6.2)

0.04

10.4 (1.6, 67.1)

0.014

 SSc vs. MCTD

2.2 (0.7, 7.1)

0.17

1.1 (0.3, 4.3)

0.88

 SSc vs. other CTD

1.9 (1.0, 3.7)

0.07

4.1 (1.2, 13.3)

0.02

Baseline FVC (per 10% decrease)

1.1 (1.0, 1.2)

0.06

1.2 (1.0, 1.4)

0.10

Baseline DLCO (per 10% decrease)

1.3 (1.1, 1.5)

< 0.001

1.2 (1.0, 1.5)

0.08

Baseline 6MWD (per 100 m decrease)

1.4 (1.1, 1.7)

0.005

1.1 (0.8, 1.4)

0.74

UIP vs. NSIP

2.3 (1.4, 4.0)

0.002

0.9 (0.4, 2.1)

0.80