Impact of total body weight on 30-day mortality in patients with gram-negative bacteremia.

Background: The impact of total body weight (TBW) on 30-day mortality associated with gram-negative bacteremia has not been previously evaluated.

Methods: The cohort included 323 patients >/ = 18 years old with gram-negative bacteremia (1/1/2008-8/31/2011) who received >/ = 48 hours of antibiotics. We compared 30-day mortality of TBW <70 kg vs.