Fig. 2.
(A) Impact of high oxygen fraction on surgical site infection. Included all surgeries. Surgeries were colorectal, appendectomy, abdominal, any except cardiac or one-lung, major abdominal, and gynecologic inclusive breast. (B) Impact of high oxygen fraction on surgical site infection. Included colorectal surgery only. On the Forrest plots, trials are listed in alphabetical order. On the event rate scatters, sizes of bubbles are proportional to sizes of trials. Fio2 = inspired oxygen fraction.