Lupus & antiphospholipid syndrome

The adjusted Global Anti-Phospholipid Syndrome Score as predictor of damage accrual measured by Damage Index for APS: a longitudinal study

Rheumatology (Oxford)Published Longitudinal cohort study

Authors' conclusion

Our data support the utility of longitudinal assessing of the aGAPSS score in predicting damage accrual, measured by DIAPS, in APS.

Study context

Population
Patients with thrombotic and non-thrombotic APS (138 primary, 62 associated with other autoimmune diseases)138 primary, 62 associated APS
Participants
200 patients
Exposure
High vs low damage accrual
Outcome
Association between mean aGAPSS over time and change in DIAPS during follow-up
Follow-up
Up to 6 years (minimum 3 years)
Methodological detailslinear regression models, multivariate analysis
  • Linear regression models
  • Multivariate analysis

Main finding

As reported in the abstract

Mean aGAPSS and DIAPS change (multivariate linear regression)

Higher mean adjusted' Global APS Score (aGAPSS) associated with Damage Index for APS (DIAPS) increase during follow-up, b

0.04

P < 0.001

Observational data: associations, not effects.

Further findings

OutcomeOR (95% CI)P value
Odds of DIAPS increment ≥1 point per aGAPSS1.12 (1.04–1.21)P = 0.003

Mean

OutcomeHigh damage accrualLow damage accrualP value
Mean aGAPSS by damage accrual9.22 (95% CI 7.58–10.86)6.72 (95% CI 6.0–7.43)P = 0.003

Original publication

The adjusted Global Anti-Phospholipid Syndrome Score as predictor of damage accrual measured by Damage Index for APS: a longitudinal study. Rheumatology (Oxford). Published 25 October 2022. doi:10.1093/rheumatology/keac619

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