Covariate-adjusted mean (SEM) bone mineral density of the whole body by quartiles of each WA-index of FM.

<p>FM, LM, BMD, WA-: see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0063339#pone-0063339-t002" target="_blank">Table 2</a>.</p><p>ANCOVA (analysis of covariance) and linear regression: see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0063339#pone-0063339-t002" target="_blank">Table 2</a>.</p><p>% Diff.: percentage difference = (Q4–Q1)/Q1×100%.</p><p><i>P</i>: <i>P</i> for group difference.</p>†, ††, †††<p>: compared with Q1, <i>P</i><0.05, <i>P</i><0.01, <i>P</i><0.001 (Bonferroni).</p>*<p>, **, ***: <i>P</i> for the linear trend (linear regression), <i>P</i><0.05, <i>P</i><0.01, <i>P</i><0.001.