Table 3:

Cast Histology

Cast Histology	n (%)	BAL Neutrophil Count, per 100 cells	BAL Lymphocyte Count, per 100 cells	BAL Eosinophil Count, per 100 cells
Lymphocytic Proteinaceous (n=19)
With neutrophils	12 (63%)	43 (20-61)	13 (12-21)	0 (0-0)
Embedded in proteinaceous material	1
Peripheral in mucin	7	43 (11-57)	17 (12-27)	0 (0-0)
Both	4	42 (22-85)	12 (5-13)	0 (0-0)
With neutrophils (peripheral) and eosinophils	2 (11%)	44	21	11
Without eosinophils and neutrophils	5 (26%)	21 (9-22)	12 (9-34)	0 (0-5)
Proteinaceous with positive cultures*	6 (32%)	22 (21-69)	12 (10-19)	0 (0-0)
Proteinaceous with negative cultures	13 (69%)	21 (7-56)	20 (10-34)	0 (0-10)
Lymphocytic mixed mucinous and proteinaceous (n = 2)
With neutrophils (peripheral)	1	54	5	0
With neutrophils and eosinophils (both)	1	67	7	12
Lymphocytic mucinous with embedded neutrophils (n = 2)	2	30	25	0

Values are reported as number with percentage of total and median with IQR.

^*Positive cultures represent either positive BAL virology or BAL bacterial or fungal culture.