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. Author manuscript; available in PMC: 2010 Nov 27.
Published in final edited form as: N Engl J Med. 2010 May 16;362(21):1959–1969. doi: 10.1056/NEJMoa0911781

Figure 2. Kaplan–Meier Estimate of Survival to Hospital Discharge, Transfer, or 1 Year of Life.

Figure 2

Cox proportional-hazards analysis indicated that there was an increased hazard of death in the lower-oxygen-saturation group as compared with the higher-oxygen-saturation group (hazard ratio, 1.28; 95% CI, 0.98 to 1.68; P = 0.07). The analysis assumed that infants who were discharged or transferred from the hospital survived to 1 year of age.