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Table 2 Comparison of the incidence of venous thromboembolism in IPF and cHP groups per 1000 person-years of follow-up

From: Chronic hypersensitivity pneumonitis is associated with an increased risk of venous thromboembolism: a retrospective cohort study

 

Person-years

Pulmonary embolism

Deep vein thrombosis

Venous thromboembolism

N

N

N/1000 person-years

N

N/1000 person-years

N

N/1000 person-years

IPF

1020

8

7.8

7

6.9

12

11.8

cHP

706

4

5.7

3

4.2

5

7.1

RR (95% CI)

1.384 (0.371–6.282)

p = 0.83*

1.615 (0.369–9.679)

p = 0.72*

1.661 (0.545–6.019)

p = 0.48*

  1. RR, relative risk; CI, confidence interval; IPF, idiopathic pulmonary fibrosis; cHP, chronic hypersensitivity pneumonitis
  2. *Exact Fisher test