Correlations between aPTT and anti-FXa at varying concentrations of enoxaparin and tinzaparin, using various reagents.

<p>Anti-FXa activity reflects the concentration of LMWH and the aPTT correlated well to this measure. The correlation for Hemochron Jr is slightly weaker than for the other reagents (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0116835#pone.0116835.t002" target="_blank">Table 2</a>).