Insight into human pubertal growth by applying the QEPS growth model

Holmgren, Anton; Niklasson, Aimon; Gelander, Lars; Aronson, A. Stefan; Nierop, Andreas F.M.; Albertsson-Wikland, Kerstin

doi:10.1186/s12887-017-0857-1

BMC Pediatrics

Table 2 Age in years for pubertal growth estimates

From: Insight into human pubertal growth by applying the QEPS growth model

Variable	N	Mean	Median	SD	Max	Min
Girls:
Onset of puberty
AgeTonset, age at minimum height velocity of the T-function^a	1129	9.24	9.19	1.01	12.62	6.37
AgeP1, age at 1% of the P-function^b	1139	8.71	8.68	0.98	12.00	6.09
AgeP5, age at 5% of the P-function	1139	9.86	9.81	0.97	13.13	7.30
Mid puberty
AgePHV, age at visual estimated PHV	1134	11.92	11.88	0.97	15.31	9.35
AgeTPHV, age at PHV of the T-function	1129	11.83	11.80	0.96	15.09	9.39
AgePPHV, age at PHV of the P-function	1139	12.02	11.98	0.95	15.26	9.51
AgeP50, age at 50% of the P-function	1139	12.09	12.06	0.95	15.34	9.59
End of puberty
AgeP95, age at 95% of the P-function	1139	14.66	14.65	0.95	17.93	12.23
AgeP99, age at 99% of the P-function	1139	16.33	16.34	0.95	19.63	13.91
AgeTend, age where the height velocity has decreased to 1 cm/year	1139	15.01	15.03	0.84	18.00	12.85
Duration
Duration between AgeP5 and AgeP95	1139	4.80	4.78	0.21	5.54	3.44
Duration between AgeP1 and AgeP99	1139	7.61	7.58	0.33	8.77	5.45
Duration between Tonset and Tend	1129	5.77	5.78	0.50	7.11	3.84
Boys:
Onset of puberty
AgeTonset, age at minimum height velocity of the T-function	1141	10.74	10.71	0.98	14.20	7.50
AgeP1, age at 1% of the P-function	1141	10.73	10.72	0.97	13.94	7.45
AgeP5, age at 5% of the P-function	1141	11.78	11.77	0.96	14.98	8.56
Mid puberty
AgePHV, age at visual estimated PHV	1136	13.83	13.81	1.00	17.18	10.95
AgeTPHV, age at PHV of the T-function	1141	13.66	13.65	0.96	16.84	10.54
AgePPHV, age at PHV of the P-function	1141	13.73	13.72	0.96	16.94	10.63
AgeP50, age at 50% of the P-function	1141	13.80	13.78	0.96	17.01	10.69
End of puberty
AgeP95, age at 95% of the P-function	1141	16.10	16.06	0.97	19.31	13.12
AgeP99, age at 99% of the P-function	1141	17.56	17.52	0.98	20.78	14.58
AgeTend, age where the height velocity has decreased to 1 cm/year	1141	16.68	16.64	0.90	19.44	14.01
Duration
Duration between AgeP5 and AgeP95	1141	4.32	4.31	0.22	5.55	3.24
Duration between AgeP1 and AgeP99	1141	6.83	6.82	0.34	8.78	5.12
Duration between Tonset and Tend	1141	5.94	5.94	0.38	7.62	4.37

^aTotal height function in cm; T(age) = Q(age) + E(age) + P(age) – S(age), ^bQuadratic logistic function describing the pubertal growth spurt P(age) in cm

Back to article page

ISSN: 1471-2431

Contact us

Submission enquiries: bmcpediatrics@biomedcentral.com
General enquiries: ORSupport@springernature.com