Lupus & antiphospholipid syndrome

Incidence and disease burden of bronchiectasis in systemic lupus erythematosus: a nationwide population-based study in Korea

RMD OpenPublished Population-based matched cohort study

Main finding · Incidence of bronchiectasis (/100 000 person-years)Result — go to the resultRisk of developing bronchiectasis (fold increase) 1.46 95% CI 1.22–1.76

Authors' conclusion

The risk of bronchiectasis was higher in individuals with SLE than in controls, and its development was associated with a worse disease course, higher mortality during follow-up and increased healthcare utilisation.

Study context

Population
Adults aged ≥20 years with systemic lupus erythematosus (SLE) diagnosed 2002–2012 and matched controls, Korean National Health Insurance Service datasetmatched cohort
Exposure
SLE vs matched controls
Outcome
Incident bronchiectasis
Methodological detailsnationwide, 1:4 age, sex and health insurance service-matched
  • Nationwide
  • 1:4 age, sex and health insurance service-matched

Main finding

As reported in the abstract

Incidence of bronchiectasis (/100 000 person-years) · median follow-up 12.8 years (IQR 10.0-16.0 years)

Risk of developing bronchiectasis (fold increase)

1.46

95% CI 1.22–1.76

By group

SLEvs Matched controls
risk of developing bronchiectasis (fold increase) 1.46 (95% CI 1.22–1.76)

Observational data: associations, not effects.

Further findings

Risk factors for bronchiectasis within the SLE cohort

Age older than 40 years (highest aHR in those ≥70 years), aHR 25.08, 95% CI 7.62 to 82.53
Asthma, aHR 1.73, 95% CI 1.11 to 2.70
Obesity (inverse association), aHR 0.56, 95% CI 0.38 to 0.82

Disease burden in SLE with vs without bronchiectasis

Significantly higher rates of mortality, ED visits and hospitalisations in those who developed bronchiectasis

Original publication

Incidence and disease burden of bronchiectasis in systemic lupus erythematosus: a nationwide population-based study in Korea. RMD Open. Published 22 June 2026. doi:10.1136/rmdopen-2025-006671

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