79 Predicting population-level vulnerability among pregnant women Table 4. Average proportion of multidimensional vulnerability in the Netherlands over the years 2017 – 2021 for the three regression models 2017 2018 2019 2020 2021 RF Average proportion 0.081 0.079 0.079 0.077 0.072 SD 8.21E-05 2.65E-05 6.7E-05 5.93E-05 0.000105 XGBoost Average proportion 0.090 0.088 0.088 0.085 0.080 SD 0.000105 0.000151 9.21E-05 7.95E-05 5.55E-05 Lasso regression Average proportion 0.100 0.098 0.098 0.097 0.091 SD 0.000116 8.69E-05 7.05E-05 5.66E-05 9.52E-05 Results based on analyses among all unique pregnancies from 2017 – 2021 (n = 807.904) Table 5. Complete cases 2017 2018 2019 2020 2021 RF Proportion 0.086 0.084 0.083 0.080 0.075 XGBoost Proportion 0.095 0.092 0.091 0.087 0.081 Lasso regression Proportion 0.106 0.103 0.102 0.099 0.093 Results based on analyses among all unique pregnancies from 2017 – 2021 with complete data on all variables 3
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