Table 6.

Percentages of predicted ages at peak height velocity (PHV) within ±0.50 year of observed age at PHV with the new: Moore-1 (M-1), Moore-2 (M-2) and original: Mirwald (M) equations by years before and after PHV in boys and girls of contrasting maturity status

Years relative to PHV	Boys									Girls
	Early (n = 34–37)			Average (n = 109–116)			Late (n = 33–38)			Early (n = 13–27)		Average (n = 129–140)		Late (n = 20–30)
	M-1	M-2	M	M-1	M-2	M	M-1	M-2	M	M-1	M	M-1	M	M-1	M
−3	80	80	51	43	50	71	0	0	11	0	0	81	81	3	14
−2	43	40	14	76	71	75	3	0	24	0	4	72	71	22	41
−1	3	8	3	79	77	66	11	11	50	0	0	62	58	52	69
PHV	0	6	0	76	75	58	11	8	58	0	0	59	49	55	76
+1	0	9	3	72	73	66	13	8	45	0	0	57	47	53	79
+2	0	3	0	72	66	59	19	22	54	0	0	49	36	67	83
+3	0	0	0	60	49	47	36	36	58	0	0	38	13	77	45

M-1: boys—recommended equation, age and sitting height, girls—recommended equation, age and height; M-2: boys—alternative equation, age and height [13]; M: original equation [3]