CKB and hydrops fetalis: Analyses stratified by genetic risk categories with unfavorable ICVHMs as the reference groups found that favorable ICVHMs was associated with a lower HF risk in all three genetic risk groups (HRs and 95% CIs in the low, intermediate, and high genetic risk were 0.71 [0.44, 1.15], 0.41 [0.22, 0.77], and 0.48 [0.30, 0.77] in CKB and 0.34 [0.26, 0.44], 0.32 [0.25, 0.41], and 0.37 [0.28, 0.47] in UKB; Table 3).