HRCT

pSS (55)

RA (49)

DM/PM (58)

SSc (34)

P

Normal HRCT

10 (18.0)

10 (20.4)

6 (10.3)

1 (2.9)

0.023

Reticular opacity or honeycombing

10 (10.9)

10 (20.4)

18 (31.0)

17 (50.0)

0.006

Nodule

7 (12.7)

6 (12.2)

4 (6.9)

0 (0)

0.043

Cord shadow

12 (21.8)

9 (18.4)

11 (19.0)

4 (11.8)

0.696

Patching or ground-glass opacity

16 (29.1)

16 (22.4)

12 (20.7)

6 (17.6)

0.287

Emphysema or bulla or bronchiectasis

10 (18.1)

5 (10.2)

7 (12.1)

8 (23.5)

0.311

Slight inflammation

4 (7.3)

4 (8.2)

2 (3.4)

5 (14.7)

0.290

Patching, ground-glass opacity, and slight inflammation

20 (36.4)

20 (40.8)

14 (24.1)

11 (32.4)

0.297