Table 2 

Changes from baseline to 9 months in primary outcomes, bone mineral density (BMD) and bone turnover markers. 

Variable 
Randomized to Usual Care (n = 43) 
Randomized to Tai Chi (n = 43) 
Per Protocol Tai Chi (n = 26) 

Baseline 
9 Months 
Baseline 
9 Months 
Baseline 
9 Months 



BMD 

Femoral Neck (mean ± SD) (g/cm^{2}) % change (median [Q1, Q3]) 
.692 ± .068 
.685 ± .069 0.85 [2.58, 0.70] 
.680 ± .063 
.681 ± .063 0.39 [1.48, 1.02] *p = 0.24 
.685 ± .074 
.688 ± .075 0.23 [0.64, 1.02] *p = 0.05 
Total Hip (mean ± SD) (g/cm^{2}) % change (median [Q1, Q3]) 
.837 ± .077 
.835 ± .078 0.64 [1.39, 0.92] 
.829 ± .073 
.832 ± .074 0.23 [1.12, 0.89] *p = 0.26 
.832 ± .079 
.834 ± .079 0.35 [1.20, 1.13] *p = 0.32 
Spine (mean ± SD) (g/cm^{2}) % change (median [Q1, Q3]) 
.901 ± .128 
.891 ± .132 1.27 [2.67, 0.28] 
.898 ± .070 
.889 ± .069 1.38 [2.72, 0.99] *p = 0.98 
.898 ± .076 
.894 ±.072 1.21 [1.95, 1.88] *p = 0.38 
Bone Turnover Markers 

CTX (mean ± SD)
% change (median [Q1, Q3]) 
.603 ± .231 
.629 ± .310 2.05 [15.33, 23.19] 
.554 ± .259 
.569 ± .248 0.68 [17.94, 24.19] *p = 0.99 
.594 ± .30 
.552 ± .266 7.17 [25.77, 12.56] *p = 0.21 
OSC (mean ± SD)
% change (median [Q1, Q3]) 
15.52 ± 4.94 
16.50 ± 4.82 4.30 [0.00, 11.80] 
16.29 ± 6.01 
16.38 ± 5.72 1.94 [10.03, 12.87] *p = 0.35 
17.11 ± 7.02 
16.23 ± 5.96 3.55 [13.61, 7.23] *p = 0.03 


* pvalue for comparison with Usual Care based on the Wilcoxon rank sum test. Baseline and 9 month values represent mean values ± standard deviations. Change scores are summarized with median values and 25^{th }(Q1) and 75^{th }(Q3) percentiles. Pvalues indicate comparisons between Usual Care ground and Tai Chi and Per Protocol groups, based on the Wilcoxon rank sum test. 

Wayne et al. BMC Complementary and Alternative Medicine 2012 12:7 doi:10.1186/14726882127 