Fig. 2

App engagement (as duration in days). (a) Self-reported cardiovascular health: family history of cardiovascular disease (padj = 1.73e-4, diff = 0.23+/−0.13); heart disease (pad = 8.78e-10, diff = 0.56+/−0.18); vascular disease (padj = 1.90e-4, diff = 0.47+/−0.25). (b) Self-reported mental wellbeing: feel worthwhile (pad < 2.20e-16, beta = 0.13+/−0.013); feel happy (padj < 2.2e-16, beta = 0.12+/−0.12); feel worried (padj < 2.2e-16, beta = −0.13+/−0.01); feel depressed (padj < 2.2e-16, beta = −0.094). (c) Perceived risk of cardiovascular disease: perceived 10-year risk (padj,2.2e-16, beta = 0.29+/−0.03); perceived lifetime risk (padj = 3.18e-5, beta = 0.105+/−0.02); perceived 10-year risk compared to others (p = 7.93e-4; beta = 0.079+/−0.02); perceived lifetime risk compared to others (padj = 2.81e-3, beta = 0.079+/−0.02). N = 45,656 participants.