Abstract
We examined the temporal longitudinal associations of carotid-femoral pulse wave velocity (cfPWV) and carotid intima-media thickness (cIMT) with the risk of elevated resting heart rate (RHR) and high-sensitivity C-reactive protein (hsCRP). We studied 3,862 adolescents, mean age 17.7 (SD 0.3 yr), followed-up for 7 yr until age 24.5 (0.7) yr, from the Avon Longitudinal Study of Parents and Children, UK. RHR, fasting plasma hsCRP, cfPWV, and cIMT were repeatedly assessed and analyzed using logistic regression, linear mixed-effect, and structural equation models adjusting for important covariates. Among 3,862 adolescents [2,143 (55.5%) female], 10% and 44% were at moderate-to-high risk of elevated RHR and hsCRP at 24.5 yr, respectively. Higher cfPWV at 17.7 yr was associated with elevated RHR risk at follow-up [odds-ratio (OR) 1.58 (CI 1.20-2.08); P = 0.001], whereas cIMT at 17.7 yr was associated with elevated hsCRP risk [OR 2.30 (1.18-4.46); P = 0.014] at follow-up, only among females. In mixed model, 7-yr progression in cfPWV was directly associated with 7-yr increase in RHR [effect-estimate 6 beats/min (1-11); P = 0.017] and hsCRP. cIMT progression was associated with 7-yr increase in RHR and hsCRP. In cross-lagged model, higher cfPWV at 17.7 yr was associated with higher RHR (β = 0.06, standard error = 3.85, P < 0.0001) at 24.5 yr but RHR at 17.7 yr was unassociated with cfPWV at 24.5 yr. Baseline cIMT or RHR was unassociated with either outcome at follow-up. Higher hsCRP at 17.7 yr was associated with higher cfPWV and cIMT at 24.5 yr. In conclusion, adolescent arterial stiffness but not cIMT appears to precede higher RHR in young adulthood, whereas elevated hsCRP in adolescence preceded higher cfPWV and cIMT.NEW & NOTEWORTHY Higher arterial stiffness but not carotid-intima media thickness in adolescence preceded higher resting heart rate in young adulthood, however, elevated high sensitivity C-reactive protein in adolescence preceded higher arterial stiffness and carotid intima-thickness in young adulthood in the temporal causal path. Low-grade inflammation during adolescence may be causally associated with the development of subclinical arteriosclerosis and atherosclerosis in young adulthood.
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