Tricuspid annulus velocity (mean, SD) (cm/s)			Mitral annulus velocity (mean, SD) (cm/s
	S	E	A	S	E	A
Term	6.7 (1.2)	7.2 (1.2)	7.9 (1.7)	5.0 (1.2)	6.2 (1.0)	7.6 (2.5)
32–36 weeks	6.0 (0.9)	6.2 (0.9)	7.9 (1.6)	4.4 (0.7)	5.8 (1.6)	6.2 (2.1)
<30 weeks	4.8 (0.6)	4.0 (1.1)	7.4 (1.6)	3.7 ( 0.6)	4.3 (0.8)	5.4 (2.5)