Timing of pubic hair development – Comparison of different reports

Pubic hair stage	Marshall & Tanner^[1,2] British children in a children's home Data from 1960s	Juul^[3] Danish children Data from 1991 to 1993	Rosenfield^[4] United States children, multiracial, with healthy body weight (BMI 10^th to 84^th percentile) Data from NHANES III, 1988 to 1994	Rosenfield^[4] United States children, multiracial, with overweight or obesity (BMI ≥85^th percentile) Data from NHANES III, 1988 to 1994	Susman^[5] United States children, multiracial (ECCRN) Data from 2000 to 2006
Pubic hair stage	Mean age±SD (years)	Mean age (95% CI) (years)	Age at attainment (years)	Age at attainment (years)	Mean age±SD (years)
Girls
2	11.69±1.21	11.29 (11.13-11.46)			10.2±0.8
3	12.36±1.10	12.39 (12.23-12.55)	5^th centile – 9.26 50^th centile – 11.60 95^th centile – 13.89	5^th centile – 8.65 50^th centile – 11.39 95^th centile – 14.13	11.5±0.8
4	12.95±1.06	13.51 (13.34-13.67)			12.7±0.9
5	14.41±1.12	14.49 (14.32-14.69)			14.2±1.0
Boys
2	13.44±1.09	11.88 (11.69-12.08)			11.3±0.9
3	13.90±1.04	13.45 (13.26-13.64)	5^th centile – 10.73 50^th centile – 12.61 95^th centile – 14.49	5^th centile – 10.45 50^th centile – 12.68 95^th centile – 14.91	12.6±0.8
4	14.36±1.06	14.28 (14.09-14.48)			13.6±0.7
5	15.18±1.07	15.56 (15.34-15.79)			15.0±0.8

This table shows the timing for pubic hair development reported in different longitudinal^[1,2,5] and cross-sectional studies^[2,3]. These studies represent different time periods. The Marshall and Tanner studies are longitudinal and based on data collected in the 1950s and 1960s. The Danish study^[3] presents cross-sectional data from a homogeneous population. Differences in timing between populations and variance within each population studied are evident.

BMI: body mass index; NHANES: National Health and Nutrition Examination Survey; ECCRN: Early Child Care Research Network; SD: standard deviation.

References:

Marshall WA, Tanner JM. Variations in pattern of pubertal changes in girls. Arch Dis Child 1969; 44:291.
Marshall WA, Tanner JM. Variations in the pattern of pubertal changes in boys. Arch Dis Child 1970; 45:13.
Juul A, Teilmann G, Scheike T, et al. Pubertal development in Danish children: Comparison of recent European and US data. Int J Androl 2006; 29:247.
Rosenfield RL, Lipton RB, Drum ML. Thelarche, pubarche, and menarche attainment in children with normal and elevated body mass index. Pediatrics 2009; 123:84.
Susman EJ, Houts RM, Steinberg L, et al. Longitudinal development of secondary sexual characteristics in girls and boys between ages 9½ and 15½ years. Arch Pediatr Adolesc Med 2010; 164:166.

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Timing of pubic hair development – Comparison of different reports