Table 3.

Estimated Probability Table

Groups	30	40	50	60	70
Early menarche	0.975	0.804	0.517	0.269	0.071
Late menarche	0.935	0.753	0.543	0.207	0.062
	Median
Age at menarche	Estimate	Std. Error	95% Confidence Interval
			Lower Bound	Upper Bound
<=12	52.000	3.295	45.543	58.457
>12	54.000	3.112	47.901	60.099
Overall	53.000	2.359	48.376	57.624