Table 1.

Sample Distribution (No.)^a

Variables		Sex		Age, y			FHR			ANB
		Male	Female	Early	Middle	Late	Hyperdivergent	Normovergent	Hypodivergent	Class III	Class I	Class II
				10 to <14	14 to <17	17 to <20	FHR <62%	62% ≤ FHR ≤ 65%	FHR > 65%	ANB < 1°	1° ≤ ANB ≤ 4°	ANB > 4°
Sex	Male	56		16	20	20	12	19	25	19	19	18
	Female		64	24	20	20	27	16	21	12	18	34
Age	Early	16	24				19	16	5	7	11	22
	Middle	20	20				10	10	20	7	14	19
	Late	20	20				10	9	21	17	12	11
FHR	Hyperdivergent	12	27	19	10	10				5	8	26
	Normovergent	19	16	16	10	9				10	11	14
	Hypodivergent	25	21	5	20	21				16	18	12
ANB	Class III	19	12	7	7	17	5	10	16
	Class I	19	18	11	14	12	8	11	18
	Class II	18	34	22	19	11	26	14	12
Total (each)		120		40	40	40	39	35	46	31	37	52

^aFHR indicates facial height ratio (%): posterior facial height (S-Go) / anterior facial height (N-Me).