Association of Insulin Resistance With Radiographic Lung Abnormalities and Incident Lung Disease: The Framingham Offspring Study

Diabetes CarePublished Prospective cohort study

Authors' conclusion

IR is associated with radiographic lung abnormalities and incident lung disease. Deeper phenotyping is necessary to define mechanisms of IR-associated lung injury.

Study context

Population
Framingham Offspring Study participants without baseline lung disease; mean age 51.5 years, BMI 26.7 kg/m²
Participants
875 participants
Exposure
Per 1 SD increase in log z score
Outcome
Radiographic outcomes on whole-lung CT (emphysema, ILAs, quantitative airway features) and examiner-identified incident lung disease
Methodological detailslongitudinal, adjusted for demographics, BMI and lifetime smoking, Time-weighted average HOMA-IR from repeated fasting insulin and glucose over an average 13.6 years
  • Longitudinal
  • Adjusted for demographics, BMI and lifetime smoking
  • Time-weighted average HOMA-IR from repeated fasting insulin and glucose over an average 13.6 years

Main finding

As reported in the abstract

Radiographic lung abnormalities per 1 SD increase in log(HOMA-IR) z score

Qualitative emphysema, OR

1.33

95% CI 1.04–1.70

Interstitial lung abnormalities (ILAs), OR

1.35

95% CI 1.05–1.74

Observational data: associations, not effects.

Further findings

Incident lung disease

Positive association of HOMA-IR with incident lung disease

HOMA-IR stability · average 13.6 years

HOMA-IR temporally unstable; within-person SD approximately two-thirds of between-person SD

Original publication

Association of Insulin Resistance With Radiographic Lung Abnormalities and Incident Lung Disease: The Framingham Offspring Study. Diabetes Care. Published 21 November 2024. doi:10.2337/dc24-1754

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