Figure 2

Partial response representing the additive contribution to the logarithm of the odds of death in year one. The partial response representing the additive contribution of: (a) recipient age (≥ 18 yrs), (b) donor age (≥ 15 yrs), (c) creatinine, (d) ischemic time, (e) ventilator at OHT, (f) diagnosis: nonischemic cardiomyopathy, (g) recipient female gender, (h) infection within 2 weeks, and (i) transplantation era to the logarithm of the odds of death in year one i.e. the logit. The black line shows the initial estimate of the partial response directly from the ANOVA decomposition, and the red curve is the same function recalibrated in the second step of back error propagation. Overlaid in the figure is the histogram of the input variable. (j) shows the partial response from the bivariate effect between recipient age and diagnosis of ICM. MLP denotes the partial responses obtained from the original neural network; PRN denotes the partial responses obtained after subsequent retraining of the SENN in Fig. 6.