Prevention & lipidsCohort study

Follow-Up Lipid Testing and Statin Initiation Among Young Adults in a U.S. Health Care System

J Am Coll CardiolPublished

  • Retrospective cohort study

Authors' conclusion

These findings suggest care gaps in lipid management of young adults with elevated LDL-C and represent missed opportunities to reduce cumulative LDL-C exposure and to prevent premature ASCVD during a critical window of vulnerability.

Study context

Population
Kaiser Permanente Southern California members aged 18 to 39 years with first elevated low-density lipoprotein cholesterol (LDL-C) (index) between 2008 and 2020
Participants
771,681 members
Outcome
Proportion with follow-up LDL-C test and statin initiation after index elevated LDL-C
Follow-up
Within 1, 2, and 5 years

Main finding

As reported in the abstract

Statin initiation after index elevated LDL-C

LDL-C ≥190 mg/dL: statin initiation within 1, 2, 5 years

28.4%, 33.5%, 45.7%

High 30-year atherosclerotic cardiovascular disease (ASCVD) risk and LDL-C 160 to 189 mg/dL: statin initiation within 1, 2, 5 years

25.3%, 31.9%, 46.4%

High 30-year ASCVD risk and LDL-C ≥190 mg/dL: statin initiation within 1, 2, 5 years

44.1%, 50.2%, 61.5%

Observational data: associations, not effects.

Further findings

Index LDL-C distribution

LDL-C 100 to 129 / 130 to 159 / 160 to 189 / ≥190 mg/dL
65.9%, 25.3%, 6.9%, 1.9%

Follow-up LDL-C testing within 1 year, trend 2008 to 2018 (LDL-C 160 to 189 mg/dL and high 30-year risk)

Declined from 2008 to 2018
52.5% to 35.4%

Statin initiation within 1 year, trend 2008 to 2018 (both high-risk subgroups)

Declined from 2008 to 2018
31.7% and 36.5% in 2008 to 20.1% and 12.6% in 2018

Original publication

Follow-Up Lipid Testing and Statin Initiation Among Young Adults in a U.S. Health Care System. J Am Coll Cardiol. Published 10 November 2025. doi:10.1016/j.jacc.2025.10.052

Summarised from the published abstract; every number is checked against it