Table 4.

Association between prenatal IVS thickness and IVS/LMWT ratio, and IUFD and relevant perinatal mortality.

	IUFD (n = 10) RR (95% CI)	POSSIBLY RELEVANT PERINATAL MORTALITY* (n = 12) RR (95% CI)
Prenatal IVS thickness ≥4.5 mm	2.15 (1.45 to 3.18)	2.63 (2.07 to 3.35)
Prenatal IVS:LMWT ratio ≤1.18	1.88 (1.17 to 3.01)	2.63 (2.07 to 3.35)

Notes:

^*Possibly relevant perinatal mortality includes both the cases of IUFD and neonatal death due to heart failure.

Abbreviations: IVS, interventricular septum; LMWT, left myocardial wall thickness; IUFD, intrauterine fetal demise; RR (95% CI), relative risk and its 95% confidence interval.