TABLE 1.

Total voriconazole concentrations in serum and plasma samples and concentrations in samples received from pediatric hospitals^a

Population	No. of levels measured	Concn range (μg/ml)	Median quantifiable concn (μg/ml)	% of measurements below LLQ (<0.2 μg/ml)	% of measurements below 1 μg/ml	% of measurements below 1.5 μg/ml	% of measurements above 5.5 μg/ml
Total	14,923	Undetectable–44.9	1.86	14.60	39.20	50.30	10.40
Pediatric	1,700	Undetectable–44.9	1.46	21.50	50.80	61.50	9.90

^aConcentrations were measured by HPLC. LLQ, lower limit of quantification.