Osteoporosis, bone & mineral

Socioeconomic vulnerability and osteoporosis treatment disparities during COVID-19 lockdown among U.S. medicare enrollees who initiated romosozumab

Osteoporos IntPublished Retrospective cohort study

Main finding · Romosozumab discontinuation during COVID-19 lockdownResult — go to the resultAdjusted hazard ratio 0.79 CI 0.68–0.92

Authors' conclusion

Medicare beneficiaries in counties with higher SES level (lower vulnerability) were less likely to discontinue romosozumab during the COVID-19 lockdown and more likely to switch treatments if discontinued, resulting in shorter treatment gaps.

Study context

Population
Female Medicare beneficiaries aged 65 and older who initiated romosozumab between April 2019 and September 2020
Participants
6,777 new romosozumab users
Exposure
Highest vs lowest county-level SES
Outcome
Romosozumab discontinuation (>60-day gap between doses) during COVID-19 lockdown
Methodological detailsCox proportional hazards model, Discontinuation Risk Score adjustment
  • Cox proportional hazards model
  • Discontinuation Risk Score adjustment

Main finding

As reported in the abstract

Romosozumab discontinuation during COVID-19 lockdown

Adjusted hazard ratio

0.79

CI 0.68–0.92

Highest SESvs Lowest SES
aHR 0.79 (CI 0.68–0.92)

Observational data: associations, not effects.

Further findings

OutcomeaHR (CI)
Restart of osteoporosis treatment during lockdown1.14 (1.01–1.30)
Treatment switch during lockdown1.30 (1.06–1.60)

Restart of osteoporosis treatment within 6 months after discontinuation (among discontinuers)

Discontinued
2,937
Restarted osteoporosis treatment within 6 months
1,816
Switched to other medications
661

Original publication

Socioeconomic vulnerability and osteoporosis treatment disparities during COVID-19 lockdown among U.S. medicare enrollees who initiated romosozumab. Osteoporos Int. Published 8 September 2025. doi:10.1007/s00198-025-07677-w

Composed by AI from the published abstract and checked against it. How Briefs are made →

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