Table 3 Comparison of HRCT performance in different types of CTD-ILDs [n (%)]

Bronchiectasis

24(70.6)^a

12(44.4)

7(43.7)

5(31.3)

1(16.7)

11.256

0.022

Esophageal dilatation

2(5.9)^b

1(3.7)^b

10(62.5)^a

1(6.3)

1(16.7)

33.923

<0.001

Mediastinal lymph node enlargement

14(41.2)

16(59.3)^a

4(25)

3(18.8)

1(16.7)

10.103

0.041

Pleural effusion

2(5.9)

1(3.7)

1(6.3)

1(6.3)

1(16.7)

1.453

0.693

Pulmonary artery widening

7(20.6)

4(11.8)

6(17.6)

5(31.3)

2(33.3)

3.783

0.391

Pulmonary nodule

22(64.7)

22(81.5)^a

8(50)

9(56.3)

4(66.7)

5.382

0.222

Honeycombing

20(58.8)^a

11(40.7)

6(37.5)

3(18.8)^b

2(12.5)

7.808

0.095

Reticulation

26(76.5)

20(74.1)

13(81.3)

14(87.5)

2(33.3)

7.395

0.157

Ground-glass opacity

23(67.6)

22(81.5)

11(68.8)

9(56.3)

4(66.7)

3.246

0.51

Consolidation

5(14.7)

8(29.6)

2(12.5)

5(31.3)

1(6.3)

3.771

0.43

Thin-walled cysts

11(32.4)

18(52.9)^a

6(37.5)

2(12.5)^b

2(33.3)

14.081

0.006

Pericardial effusion

6(17.6)

4(14.8)

2(12.5)

1(6.3)

3(50)^a

6.48

0.241

Predominance

20.814

0.046

Ground-glass opacity

17(50)

12(44.4)

9(56.3)

4(25)

3(50)

Reticulation

4(11.8)^b

10(37)

3(18.8)

8(50)^a

2(33.3)

Honeycombing

13(38.2)^a

4(14.8)

4(25)

2(12.5)

1(6.3)

Consolidation

0(0)

1(3.7)

0(0)

2(12.5)^a

0(0)

Extent(p25,p75)

Ground-glass opacity

(0,1.1)

(0.1,2.6)

(0,2)

(0,1.1)

(0,3.2)

0.783

Reticulation

(0.1,1)

(0,3.3)

(0.2,2.2)

(0.1,2.7)

(0,1.3)

0.253

Honeycombing

(0,4)

(0,1.6)

(0,1.7)

(0,0)

(0,0.5)

0.044

Consolidation

(0,0)

(0,0.1)

(0,0)

(0,0.3)

(0,1.4)

0.412

Distribution

8.950

0.345

PeriBVB

4(11.7)

6(22.2)

2(12.5)

3(18.8)

2(33.3)

Subpleural

24(70.6)

11(40.7)^b

11(68.6)

9(56.3)

4(66.7)

PeriBVB + Subpl

6(17.6)

10(37)^a

3(18.8)

4(25)

0(0)