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Fig. 3 | BMC Medical Research Methodology

Fig. 3

From: Studying missingness in spinal cord injury data: challenges and impact of data imputation

Fig. 3

Mean and confidence interval of the difference between estimates from the data before introducing missingness in LEMS at baseline and after imputation. Each row corresponds to missing data being introduced using a different missingness pattern (MCAR, MAR and MNAR from top to bottom). Each column corresponds to the estimate of one explanatory variable (LEMS at baseline, AIS B compared to AIS A, AIS C compared to AIS A and AIS D compared to AIS A, from left to right). Intervals displayed in red do not contain the value 0. MCAR: missing completely at random, MAR: missing at random, MNAR: missing not at random, LEMS: lower extremity motor score, AIS: American Spinal Injury Association Impairment Scale, k-NN: k-nearest neighbors, SVM: support vector machines, RBF: radial basis function

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