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. 2020 Oct 9;20(6):168. doi: 10.3892/etm.2020.9298

Figure 2.

Figure 2

Receiver operating characteristic curve for (A) baseline CI to predict post-spinal anesthesia hypotension, with the optimal cutoff point 3.68 using Youden's index. (B) Baseline CI to predict high dose ephedrine usage, with the optimal cutoff point 3.88. (C) Baseline TPRI to predict post-spinal anesthesia hypotension, with the optimal cutoff point 1926. (D) Baseline TPRI to predict high dose ephedrine usage, with the optimal cutoff point 1989. (E) Baseline SV to predict post-spinal anesthesia hypotension, with the optimal cutoff point 80.35. (F) Baseline SV to predict high dose ephedrine usage, with the optimal cutoff point 79.4. AUC, area under the curve; 95% confidence interval presented in parentheses; CI, cardiac output index; TPRI, total peripheral resistance index; SV, stroke volume.