Osteoporosis & bone health

Associations of residential greenness with bone mineral density and osteoporosis: the modifying effect of genetic susceptibility

Ann Rheum DisPublished Cohort study

Authors' conclusion

Residential greenness was associated with higher bone mineral density and decreased risk of incident osteoporosis.

Study context

Exposure
Higher vs lower residential greenness
Outcome
eBMD, prevalent osteoporosis and incident osteoporosis
Methodological detailslinear regression, logistic regression and Cox proportional hazard models, causal mediation analyses, polygenic risk score joint-effect analysis
  • Linear regression, logistic regression and Cox proportional hazard models
  • Causal mediation analyses
  • Polygenic risk score joint-effect analysis

Main finding

As reported in the abstract

Per IQR increase in NDVI300m

Increase in estimated bone mineral density (eBMD) per IQR increase in NDVI300m

0.0007

95% CI 0.0002 to 0.0013

Prevalent osteoporosis, OR per IQR increase in NDVI300m (95% CI 0.92 to 0.97); 6% lower risk

0.94

Incident osteoporosis, HR per IQR increase in NDVI300m (95% CI 0.93 to 0.98); 5% lower risk

0.95

Observational data: associations, not effects.

Further findings

Joint effects of greenness and Polygenic Risk Score (PRS) on osteoporosis risk

High Normalised Difference Vegetation Index (NDVI) and low genetic risk vs low NDVI and high genetic risk: lower risk of osteoporosis
56% (95% CI 51% to 61%)
Clear dose-response pattern

Mediators of greenness–incident osteoporosis association

Primary mediators identified as PM2.5 and NO2

Original publication

Associations of residential greenness with bone mineral density and osteoporosis: the modifying effect of genetic susceptibility. Ann Rheum Dis. Published 11 April 2024. doi:10.1136/ard-2023-224941

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