Figure 1From: Validation of self reported diagnosis of hypertension in a cohort of university graduates in SpainSurvival-agreement plot, as proposed by Luiz et al.[10] The x-axis shows the absolute difference between self-reported and measured blood pressure (BP), and the y-axis shows the proportion of observations with differences that are at least the observed difference. Separate lines for systolic and diastolic BP.Back to article page