Table 2.

Concordant and Discordant Values.^a,b

	Values	n = 35
Concordant values	Therapeutic aPTT and anti-Xa	16 (45.71%)
Discordant values	Therapeutic aPTT: Subtherapeutic anti-Xa	18 (51.43%)
	Therapeutic aPTT: Supertherapeutic anti-Xa	1 (2.86%)

Abbreviations: aPTT, activated partial thromboplastin time; anti-Xa, antifactor-Xa.

^a Therapeutic aPTT defined as 60 to 80 seconds.

^b Therapeutic anti-Xa defined as 0.3 to 0.7 U/mL.