Type 2 & other diabetes

Disrupted specialist outpatient services and alternative modes of service for patients with diabetes mellitus: A population‐based, retrospective cohort study in Hong Kong

Diabetes Obes MetabPublished Population-based retrospective cohort study

Main finding · All-cause mortalityResult — go to the resultHazard ratio 1.20 95% CI 1.12–1.29

Authors' conclusion

SOPC service disruption was associated with increased risk of mortality and CVD among patients with DM. Primary care clinic service could be a beneficial alternative mode of service to attenuate the excessive risk. These findings support a policy that follow-up at primary care clinics should be provided for patients with DM when SOPC service is disrupted in future public health crises.

Study context

Population
Patients with diabetes mellitus (DM) (2010–2019) with internal medicine specialist outpatient clinic (SOPC) visits in 2019, Hong Kong; followed January 2021 to June 2024
Participants
96,372 patients
Exposure
SOPC follow-up disruption in 2020 vs no disruption; among disrupted, primary care clinic attendance vs none
Outcome
All-cause mortality and complications
Follow-up
January 2021 to June 2024
Methodological detailsCox proportional hazards models
  • Cox proportional hazards models

Main finding

All-cause mortality

Hazard ratio

1.20

95% CI 1.12–1.29

SOPC disruptionvs No SOPC disruption
HR 1.20 (95% CI 1.12–1.29)

As reported in the abstract

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)
CVD incidence1.12 (1.05–1.20)
All-cause mortality, subgroup with SOPC disruption: primary care clinic attendance in 2020vs none0.72 (0.60–0.87)
CVD, subgroup with SOPC disruption: primary care clinic attendance in 2020vs none0.84 (0.72–0.99)

Original publication

Disrupted specialist outpatient services and alternative modes of service for patients with diabetes mellitus: A population‐based, retrospective cohort study in Hong Kong. Diabetes Obes Metab. Published 28 August 2025. doi:10.1111/dom.70069

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