Research Article

Association of Leukocytosis with Amphetamine and Cocaine Use

Table 2

Differences between amphetamine and/or cocaine urine drug screen (UDS) positive and negative patients.

NegativeAmphetamine Cocaine Amphetamine and cocaine
UDSpositive UDSpositive UDSpositive UDS

Total8772407217
Female (%)350 (39.9%)113 (47.1%)0.0516 (22.2%)0.0036 (35.3%)0.8
Age ± SD 0.03 0.0005 0.6
Median WBC88.96.88.9
WBC ± SD <0.0001 <0.0001 0.01
WBC > 11.0130 (14.8%)57 (23.8%)0.0011 (1.4%)0.00035 (29.4%)0.16

WBC units (×103/ L).