Table 4.

Total body mineral density (g/cm²) of Mexican-American males aged 8 years and over.

Male (Mexican-American)	Sample size	Mean	Standard deviation	Does Tukey-Kramer C. I. include zero?
(X1) 8–11 years	468	0.833	0.075	(X4–X1)	×
(X2) 12–15 years	777	0.995	0.120	(X4–X2)	×
(X3) 16–19 years	783	1.142	0.103	(X4-X3)	×
(X4) 20–29 years	444	1.173	0.096	(X4)	✓
(X5) 30–39 years	337	1.162	0.094	(X4-X5)	✓
(X6) 40–49 years	381	1.155	0.101	(X4–X6)	✓
(X7) 50–59 years	174	1.142	0.109	(X4–X7)	×
(X8) 60–69 years	348	1.136	0.104	(X4–X8)	×
(X9) 70–79 years	164	1.106	0.107	(X4–X9)	×
(X10) 80 years and over	48	1.075	0.098	(X4–X10)	×