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Table 3 Incidence rate of functional deterioration by different variables

From: Functional respiratory impairment and related factors in patients with interstitial pneumonia with autoimmune features (IPAF): Multicenter study from NEREA registry

 

Pacs-semester

Events

TM 100 pacs-semester

IC 95%

Hospital centers

 FJD

238.4

59

24.7

19.2–31.9

 HCSC

150.1

36

23.9

17.3–33.2

 HiLe

5.7

0

0

 HIS

6.9

0

0

 HPH

33.7

12

35.6

20.2–62.7

 HUG

9.2

0

0

 HULP

18.8

4

21.3

7.9–56.7

Gender

 Women

325.5

79

24.3

19.4–30.2

 Men

137.3

32

23.3

16.4–32.9

Age in years

 ≤ 60

156.9

34

21.6

15.5–30.3

 60–69

164.0

43

26.2

19.4–35.3

 70–79

93.4

26

27.8

18.9–40.9

 ≥ 80

48.5

8

16.5

8.2–32.9

Active-former smokers

 No

155.8

43

27.6

20.4–37.2

 Yes

307.0

68

22.15

17.4–28.09

Comorbidity overall

 No

145.8

36

24.6

17.8–34.2

 Yes

302.3

72

23.9

18.9–30.0

Comorbidity types

 CV disease

  No

225.5

49

21.7

16.4–28.7

  Yes

222.6

59

26.5

20.5–34.2

 History of cancer

  No

417.6

106

25.4

20.9–30.7

  Yes

30.4

2

6.4

1.6–26.2

 Liver disease

  No

410.6

100

24.3

20.00–29.6

  Yes

37.5

8

21.3

10.6–42.6

 COPD-Bronchiectasis

  Yes

395.6

104

26.3

21.7–31.8

  No

50.4

3

5.9

1.9–18.44

 Renal failure

  Yes

446.6

108

24.18

20.0–29.2

  No

1.5

0

0

 Hypothyroidism

  Yes

397.6

94

23.7

19.3–28.9

  No

50.6

14

27.7

6.6–63.3

 GER

  Yes

403.5

97

24.0

19.7–29.3

  No

40.2

10

24.8

13.4–46.3

Radiological ILD pattern

 NSIP

236.7

45

19.0

14.1–25.4

 UIP

153.5

50

32.2

24.6–42.9

 Others

72.5

16

22.0

13.5–36.0

Emphysema (HRTC)(n = 54)

 No

273.5

67

24.5

19.3–31.1

 Yes

68.1

32

17.6

10.0–31.0

Fibrosis (HRTC) (n = 54)

 No

189.5

40

21.1

15.5–28.8

 Yes

134.5

37

27.5

19.9–37.9

FVC%

 < 80

155.9

39

25.0

18.3–34.2

 > 80

306.9

72

23.4

18.6–29.5

DLCO (n = 68)

 < 60

138.7

38

27.3

19.8–37.6

 > 60

237.8

62

26.1

20.3–33.4

Rheumatoid Factor (n = 65)

 Negative

310.4

82

26.4

21.3–32.8

 Positive

97.9

22

22.5

14.8–34.1

ANA antibodies (n = 73)

 Negative

113.9

18

15.7

9.9–25.07

 Positive

336.3

90

26.7

21.7–32.9

Ro antibodies (n = 72)

 Negative

313.12

85

27.1

21.9–33.6

 Positive

99.1

16

16.1

9.8–26.3

Glucocorticoids during follow-up

 No

184.6

43

23.3

17.2–31.3

 Yes

278.2

68

24.4

19.3–31.0

DMARDs during follow-up

MTX-LEF-AM

 No

432.7

103

23.8

19.6–28.9

 Yes

30.1

8

26.5

13.3–53.0

AZA-MMF

 No

321.2

71

22.1

17.5–27.8

 Yes

141.6

40

28.2

20.7–38.5

Cyclosporin-Tacrolimus

 No

432.5

106

24.2

20.3–29.6

 Yes

30.3

5

16.5

6.8–39.6

Biologic agents (RTX)

 No

429.0

102

23.7

19.5–28.8

 Yes

33.8

9

26.6

13.8–51.1

Antifibrotic agents during follow-up

 No

439.1

106

23.9

19.7–28.9

 Yes

23.76

6

25.2

11.3–56.1

  1. Centers: Hospital Clínico San Carlos (HCSC), Hospital Infanta Leonor (HiLe), Hospital Infanta Sofía (HIS); Hospital Puerta de Hierro (HPH) Hospital Getafe (HUG), Hospital Universitario de la Paz (HULP), and Hospital Fundación Jiménez Díaz (FJD). ILD: Interstitial lung disease; UIP: usual interstitial pneumonia; NSIP: nonspecific interstitial pneumonia; others: indeterminate; lymphoid interstitial pneumonia, cryptogenic organizing pneumonia; alveolar pattern, mixed pattern; FVC%: predicted forced vital capacity; DLCO%: predicted diffusing capacity of the lungs for carbon monoxide; DMARDs: disease modifying antirheumatic drugs; methotrexate (MTX), leflunomide (LEF), antimalarials (AM); azathioprine (AZA), mycophenolate mofetil (MMF); RTX: rituximab. Antifibrotic agents: pirfenidone or nintedanib