Table 4. Absolute spine BMD changes across time.

A repeated measures ANOVA was run separately on each spine BMD site followed by Bonferroni corrected post hoc t tests. AAs had a significantly higher BMD at all sites. No TXR effect existed except at L3.

Time Point	Absolute Spine BMD Changes Across Time (g/cm2)		P Value
	AAa N=63	EAb N=52	Time	Race	TXRc
L1			<0.001	<0.001	0.235
Baseline	1.308±0.163	1.194±0.142
After Weight Loss	1.275±0.150+*	1.175±0.141
1 yr Follow-up	1.294±0.158	1.175±0.150
L2			<0.001	<0.001	0.102
Baseline	1.378±0.169	1.278±0.152
After Weight Loss	1.353±0.164*	1.256±0.137*
1 yr Follow-up	1.374±0.163	1.258±0.146
L3			0.008	0.003	0.046
Baseline	1.425±0.166	1.348±0.148
After Weight Loss	1.413±0.169	1.329±0.137 *
1 yr Follow-up	1.425±0.167	1.323±0.148*
L4			0.182	0.001	0.055
Baseline	1.354±0.170	1.271±0.140
After Weight Loss	1.352±0.162	1.253±0.131
1 yr Follow-up	1.365±0.163	1.255±0.146

Values are means ± standard deviation.

^aAfrican Americans.

^bEuropean-Americans.

^cTime by race interaction.

⁺* indicates a significant difference of P<0.001 from the baseline BMD measurement.

^*indicates a significant difference of P<0.05 from the baseline BMD measurement.