Fig. 7: Boxplots illustrating clinical features known for aging effects. | npj Digital Medicine

Fig. 7: Boxplots illustrating clinical features known for aging effects.

From: Explainable AI associates ECG aging effects with increased cardiovascular risk in a longitudinal population study

Fig. 7

Shown are P duration, PR interval, QRS duration, and QTc interval22. Each feature is positively correlated with higher age groups. Boxplots display significant differences across age groups, as indicated by the asterisks (***), denoting a highly significant statistical difference (p < 0.001) calculated with a two-sided t-test.

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