Previous studies have demonstrated the benefits of ideal cardiovascular health (CVH) in reducing cardiovascular risk. However, its role in subclinical atherosclerosis (SA) progression remains unclear. We aim to examine the association of CVH, estimated by the American Heart Association's new Life's Essential 8 (LE8), with the progression of SA.

This prospective cohort study was conducted among 972 asymptomatic Chinese participants and followed up for 5.7 years. The LE8 score (range, 0–100) consisted of blood pressure, lipids, glucose, body mass index, smoking status, diet health, physical activity and sleep health was evaluated in 1998 and 2008–2009. Progression of SA was determined by carotid plaque and coronary artery calcification (CAC) in 2008–2009 and 2013–2014. Log-binomial regression model was used to estimate the association of LE8 score with SA progression.

Each 10 points increment in LE8 score was associated with 15.2% (RR: 0.848, 95% CI: 0.797–0.902), 17.7% (RR: 0.823, 95% CI: 0.766–0.884) and 12.0% (RR: 0.880, 95% CI: 0.845–0.916) lower risks of carotid plaque, CAC and overall SA progression, respectively. Compared with participants with non-ideal CVH at both visits, the participants with ideal CVH at both visits had 39.1% (RR: 0.609, 95% CI: 0.494–0.752), 41.0% (RR: 0.590, 95% CI: 0.456–0.764) and 29.7% (RR: 0.703, 95% CI: 0.598–0.825) lower risks of carotid plaque, CAC and overall SA progression, respectively.

Higher LE8 scores were associated with lower risks of SA progression. Besides, long-term maintenance of optimal CVH was more beneficial to prevent SA progression.

The benefits of healthy lifestyles are well recognized. However, the extent to which improving unhealthy lifestyles reduces cardiovascular disease (CVD) risk needs to be discussed. We evaluated the impact of lifestyle improvement on CVD incidence using data from the China-PAR project (Prediction for Atherosclerotic Cardiovascular Disease Risk in China).

A total of 12,588 participants free of CVD were followed up for three visits after the baseline examination. Changes in four lifestyle factors (LFs) (smoking, diet, physical activity, and alcohol consumption) were assessed through questionnaires from the baseline to the first follow-up visit. Cox proportional hazard models were used to estimate hazard ratios (HRs) and corresponding 95% confidence intervals (CIs). The risk advancement periods (RAPs: the age difference between exposed and unexposed participants reaching the same incident CVD risk) and population-attributable risk percentage (PAR%) were also calculated.

A total of 909 incident CVD cases occurred over a median follow-up of 11.14 years. Compared with maintaining 0-1 healthy LFs, maintaining 3–4 healthy LFs was associated with a 40% risk reduction of incident CVD (HR = 0.60, 95% CI: 0.45–0.79) and delayed CVD risk by 6.31 years (RAP: −6.31 [−9.92, −2.70] years). The PAR% of maintaining 3–4 unhealthy LFs was 22.0% compared to maintaining 0-1 unhealthy LFs. Besides, compared with maintaining two healthy LFs, improving healthy LFs from 2 to 3–4 was associated with a 23% lower risk of CVD (HR = 0.77, 95% CI: 0.60–0.98).

Long-term sustenance of healthy lifestyles or improving unhealthy lifestyles can reduce and delay CVD risk.