Outcome	Acute leukemia/BMT		Solid organ cancer/lymphoma
	Any AB	Quinolone	Any AB	Quinolone
All cause mortality	0.67 (0.55–0.83)	0.58 (040–0.84)	0.58 (0.33–1.00	0.48 (0.26–0.85)
Febrile neutropenia	0.80 (0.77–0.84)	0.77 (073–0.82)	0.65 (0.55–0.77	0.67 (0.57–0.80)
Clinically documented infections	0.76 (0.69–0.84)	0.75 (064–0.89)	0.59 (0.47–0.73)	0.61 (0.48–0.76)
Any bacteremia	0.55 (0.40–0.62)	0.62 (0 53–0.73)	0.32 (0.17–0.61	0.36 (0.18–0.70)
Gram-negative bacteremia	0.44 (0.35–0 56)	0.36 (0 25–0.50)	0.29 (0.10–0.88)	0.32 (0.09–1.18)
Gram-positive bacteremia	0.71 (0.59–0.86)	0.81 (0 65–1.01)	0.32 (0.12–0.89)	0.35 (0.12–1.04)
Infection-related mortality	0.62 (0.48–0.80)	0.51 (0 31–0.84)	0.65 (0.29–1.46)	0.41 (0.14–1.14)

Relative risks with 95% confidence intervals; AB – antibiotic