Table 4.

Bronchoalveolar Lavage (BAL) Differential Cell Counts (per μL of BAL Effluent)

Diagnosis	Cell Counts: Mean ± SD
	Heme Group			Non-Heme Group
	WBC, μL	ANC, %	MONO, %	WBC, μL	ANC, %	MONO, %
Bacteria	393 ± 389	13.7 ± 25.8	79.6 ± 28.6	592 ± 616	30.2 ± 36.8	65.6 ± 30
Fungi	175 ± 131	2.8 ± 3.4a	68.5 ± 40.2	446 ± 448	22 ± 24.1a	70.2 ± 33.2
Mycobacteria	250	4	93	528 ± 496	28.3 ± 19.7	65 ± 16.5
Viruses	242 ± 226	25 ± 32.7	70.5 ± 33.7	312	79	15
Multiple pathogens	932 ± 2019	19.1 ± 27.3b	78.8 ± 26.6c	954 ± 1801	56.7 ± 35.2b	26 ± 23.9c
Malignancy	527 ± 282	22 ± 34.7	73.3 ± 32.4	463 ± 835	18.2 ± 35.6	74.1 ± 34.9
Contamination/colonization	600 ± 945	11.8 ± 19.6	83.9 ± 20.6	372 ± 398	24 ± 26.3	73.4 ± 25.8
No pathogen	369 ± 655	13.6 ± 20.9	80.5 ± 23.1	323 ± 637	11 ± 20.8	86 ± 18.6

SD indicates standard deviation; Heme, hematologic malignancy diagnosis; Non-Heme, no hematologic malignancy; WBC, white blood cell count; ANC, absolute neutrophil count; MONO, monocytes.

^aP= .053.

^bP= .033.

^cP= .018.