Upon performing further sensitivity analyses using the PWM and WM method, we found that the association between CRP levels and the risk of HF becomes void (Approach 1: (OR = 1.02 [0.92–1.14], p = 0.672), (OR = 1.05 [0.98–1.14], p = 0.180); Approach 2: (OR = 0.96 [0.84–1.10], p = 0.564), (OR = 0.96 [0.84–1.10], p = 0.564)) (Figure 3 and Figure 4). This evidence concerns the gene CRP and hydrops fetalis.