Multiple Comparison of Age Groups in Bone Mineral Density under Heteroscedasticity

Table 3

Total body mineral density (g/cm²) of Non-Hispanic Black females aged 8 years and over.

Female (Non-Hispanic Black)	Sample size	Mean	Standard deviation	Does Tukey-Kramer C. I. include zero?
(X1) 8–11 years	490	0.871	0.090	(X5–X1)	×
(X2) 12–15 years	737	1.071	0.097	(X5–X2)	×
(X3) 16–19 years	609	1.153	0.091	(X5–X3)	×
(X4) 20–29 years	297	1.186	0.092	(X5-X4)	✓
(X5) 30–39 years	333	1.196	0.095	X5	✓
(X6) 40–49 years	398	1.191	0.098	(X5-X6)	✓
(X7) 50–59 years	250	1.136	0.114	(X5–X7)	×
(X8) 60–69 years	306	1.096	0.113	(X5–X8)	×
(X9) 70–79 years	124	1.035	0.105	(X5–X9)	×
(X10) 80 years and over	58	0.979	0.129	(X5–X10)	×