For ILR screening compared with usual care (Table S4), the screening yield on AF diagnosis was significantly greater among participants with NT-proBNP ≤15 pmol/L (HR 4.06 [95% CI, 3.27–5.04]) than those with higher NT-proBNP levels (HR 2.89 [95% CI, 2.49–3.37]; Pinteraction=0.012). Here, NPPB is linked to atrial fibrillation.