In univariable competing‐risk regression analysis (Table 3), PENK concentrations were significantly associated with a higher risk of new‐onset HF (HR = 2.09 [95% CI 1.47–2.97] per doubling of PENK, p < .001), new‐onset HFrEF (HR = 2.31 [95% CI 1.48–3.61] per doubling of PENK, p < .001), and new‐onset HFpEF (HR = 1.74 [95% CI 1.02–2.96] per doubling of PENK, p = .042). Here, PENK is linked to hydrops fetalis.