Multiple Comparison of Age Groups in Bone Mineral Density under Heteroscedasticity

Table 1

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

Female (Mexican-American)	Sample size	Mean	Standard deviation	Does Tukey-Kramer C. I. include zero?
(X1) 8–11 years	471	0.820	0.091	(X5–X1)	×
(X2) 12–15 years	821	1.006	0.092	(X5–X2)	×
(X3) 16–19 years	692	1.074	0.089	(X5–X3)	×
(X4) 20–29 years	364	1.102	0.084	(X5-X4)	✓
(X5) 30–39 years	298	1.121	0.097	X5	✓
(X6) 40–49 years	372	1.121	0.092	(X5-X6)	✓
(X7) 50–59 years	194	1.059	0.125	(X5–X7)	×
(X8) 60–69 years	375	0.997	0.113	(X5–X8)	×
(X9) 70–79 years	154	0.937	0.105	(X5–X9)	×
(X10) 80 years and over	47	0.885	0.098	(X5–X10)	×