Abstract Body (Do not enter title and authors here): BackGround
Current research focusing on trends in statin medication usage, particularly for different age groups, is limited. This study explored the change trends in statin usage from 1999 to 2020, with a specific focus on different age groups.
Methods
Utilizing data from the National Health and Nutrition Examination Survey spanning the period from 1999 to 2020, our study included individuals aged 18 years and older diagnosed with atherosclerotic cardiovascular disease (ASCVD).
Results
In the 18-44 years age group, usage changed from 18.34% (95% CI, 0.18 to 36.50) in 1999 to 16.63% (95% CI, 0.36 to 32.91) in 2020 (linear P value = 0.540, quadratic P value = 0.610) (Figure 1). For individuals aged 45-64 years, usage increased from 39.33% (95% CI, 29.62 to 49.05) in 1999 to 54.97% (95% CI, 47.10 to 662.83) in 2020 (linear P value < 0.001, quadratic P value = 0.777) (Figure 1). In the group aged 65 years and older, usage increased from 35.17% (95% CI, 29.57 to 40.77) in 1999 to 60.62% (95% CI, 55.73 to 65.51) in 2010, and further to 68.62% (95% CI, 63.65 to 73.60) in 2020 (quadratic P value < 0.001) (Figure 1). There was an interaction effect between statin usage trends and age (P for interaction <0.001) (Figure 1).

Conclusion
Overall, current health policies are effective for the use of statins for the secondary prevention of ASCVD. However, there was almost no improvement in statin usage within the 18-44 years age group. This highlights the need for greater focus on young ASCVD patients. Therefore, additional research is needed on statin use among young people.