Table 2: Validity of puberty self-assessment analyses.

	Adjusted agreement percentage	Weighted κ	Kendall’s τb	Strength of Agreement
Boys
Genitalia	88.7%	0.51†	0.52‡	Moderate
6 – 11yo	82%	0.03	0.15	Slight
>11yo	93.6%	0.59‡	0.51‡	Moderate
Pubic Hair	97.8%	0.92‡	0.85‡	Almost perfect
6 – 11yo	93.8%	0.12	0.19	Slight
>11yo	97.3%	0.88‡	0.77‡	Almost perfect
Sexual Maturation	90.8%	0.60‡	0.62‡	Moderate
6 – 11yo	84.4%	0.01	0.09	Slight
>11yo	95.5%	0.70‡	0.60‡	Substantial
Girls
Breast	95.4%	0.76‡	0.72‡	Substantial
6 – 11yo	94.9%	0.40†	0.44†	Fair
>11yo	89.4%	0.38†	0.39†	Fair
Sexual Maturation	98.1%	0.86‡	0.85‡	Almost perfect
6 – 11yo	95.9%	0.51†	0.52†	Moderate
>11yo	97.8%a	0.91‡b	0.91‡	Almost perfect

Global agreement and
unweighted kappa were used due to presence of only 2 categories of sexual maturation among girls of this age.
p values < 0.05;
p values < 0.001