However, in the analysis of HF hospitalization, with the m‐snEF group as the reference, the adjusted HRs (adjusted for sex, BMI, and BNP levels) were as follows: m‐nEF group = 0.38, 95% CI = 0.17–0.83; s‐nEF group = 0.97, 95% CI = 0.51–1.84; and s‐snEF group = 1.48,95% CI = 0.80–2.72; Figure 3B). Here, NPPB is linked to hydrops fetalis.