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. Author manuscript; available in PMC: 2009 Sep 2.
Published in final edited form as: Circulation. 2009 Jan 26;119(5):709–716. doi: 10.1161/CIRCULATIONAHA.107.760819

Figure 5.

Figure 5

Logistic link function estimating risk of PVL by preoperative Po2 and time to surgery. The probability of PVL (y-axis) rises with the log odds (x-axis), which is derived with the equation: Log odds=14.04-0.45 (Po2)+0.63 (days to surgery). The effects of oxygenation and time to surgery are linear in the log-odds scale (x-axis) but are nonlinear in the probability scale (y-axis).