Table 1.

Average k ₆ scores for males and females by age group

	Males			Females
Age group	Mean	Sample size	Percentage	Mean	Sample size	Percentage
	k 6		k 6 = 0	k 6		k 6 = 0
18–23	4.94	6132	0.17	5.92	6686	0.12
24–34	4.01	3763	0.23	4.63	4512	0.18
35–49	3.50	5208	0.28	4.23	5891	0.21
50–64	3.06	2415	0.33	3.78	2902	0.26
64+	2.51	1623	0.38	3.03	1943	0.29
Average/sum	3.92	19141	0.25	4.66	21941	0.19