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. 2020 Sep 24;15(9):e0239695. doi: 10.1371/journal.pone.0239695

Fig 4. ROC Curves for three different logistic regression models.

Fig 4

a) Model 1: logit(Probability of Death) = intercept + aAge. b)Model 2: logit(Probability of Death) = intercept + aAge + bDisease. c) Model 3: logit(Probability of Death) = intercept + aAge + bDisease + clog(Helper) + dlog(Helper/Suppressor).