## Abbreviations  
The following abbreviations are used in this manuscript: \begin{tabular}{l l} ANC & antenatal care \\ ANN & artificial neural network \\ AUC & area under the curve \\ BCG & Bacillus Calmette-Guerin vaccine \\ CEM-GH & Consortium to Evaluate Mosquito in Ghana \\ DA & data augmentation \\ EPI & Expanded Programme on Immunization \\ EVD & early vaccination time deviation \\ FN & false negative \\ FP & false positive \\ FPR & false positive rate \\ GBM & gradient boosting machine \\ HEPB & hepatitis B vaccine \\ IPV & Inactivated Polovirus Vaccine \\ LMICs & low and middle income countries \\ LR & logistic regression \\ LVD & late vaccination time deviation \\ MEAS & Measles vaccine \\ MENGA & Meningococcal A conjugate vaccine \\ MVPE & malaria vaccine pilot evaluation \\ OPV & Oral Polio Vaccine \\ OV & on-time vaccination \\ PCA & principal component analysis \\ PCV & Pneumococcal Conjugate Vaccine \\ PENTA & Pentavalent vaccine (usually includes DTP-HepB-Hib) \\ RBF & radial basis function \\ RF & random forest \\ ROC & Receiver Operating Characteristic \\ ROTA & Rotavirus vaccine \\ RTSS & RTS\_S/AS01 malaria vaccine (commonly referred to as RTS\_S) \\ SMOTE & synthetic minority oversampling technique \\ SVM & support vector machine \\ TN & true negative \\ TP & true positive \\ TPR & true positive rate \\ VD & vaccination time deviation \\ VITA & vitamin A supplementation \\ XGB & extreme gradient boosting \\ YF & Yellow Fever vaccine \\ \end{tabular} \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Demographic Features** & \begin{tabular}{c} **Variable** \\ **Name** \\ \end{tabular} & \
\begin{tabular}{c} **DEEAULTERS** \\ **(\(\mathbf{n=9544}\))** \\ \end{tabular} &
\begin{tabular}{c} **NON-DEFAULTERS** \\ **(\(\mathbf{n=4180}\))** \\ \end{tabular} & \(\mathbf{p}\)**-Value** \\ \hline Child’s sex & & \(n\) & \% & \(n\) & \% & \\ \hline  & Female & Se01 & 4705 & 49.30 & 2017 & 48.25 & \\  & Male & Se02 & 4839 & 50.70 & 2163 & 51.75 & 0.260 \\ \hline Mother’s religion & & \(n\) & \% & \(n\) & \% & \\ \hline  & Christian & Rlg01 & 7928 & 83.51 & 3602 & 86.28 & \\  & Muslim & Rlg02 & 990 & 10.43 & 394 & 9.44 & \\  & Traditional & Rlg03 & 296 & 3.12 & 98 & 2.35 & \textless{}0.000 \\  & None & 273 & 2.88 & 79 & 1.89 & \textless{}0.000 \\  & Don’t know & Rlg04 & 5 & 0.05 & 1 & 0.02 & \\  & Other & & 2 & 0.02 & 1 & 0.02 & \\ \hline Mother’s education & & \(n\) & \% & \(n\) & \% & \\ \hline  & Preschool level & Edu01 & 2052 & 21.50 & 651 & 15.57 & \\  & Primary level & Edu02 & 1795 & 18.81 & 631 & 15.10 & \\  & Junior high level & Edu03 & 4274 & 44.78 & 1981 & 47.39 & \textless{}0.000 \\  & Senior high level & Edu04 & 1114 & 11.67 & 692 & 16.56 & \\  & Tertiary level & Edu05 & 301 & 3.15 & 223 & 5.33 & \\  & Don’t know & Edu06 & 8 & 0.08 & 2 & 0.05 & \\ \hline Mother’s work & & \(n\) & \% & \(n\) & \% & \\ \hline  & Farmer & Occ01 & 2449 & 25.66 & 978 & 23.40 & \\  & Hardsman & Occ02 & 9 & 0.09 & 9 & 0.22 & \\  & Fishmonger & Occ03 & 259 & 2.71 & 102 & 2.44 & \\  & Self employed & Occ04 & 3790 & 39.71 & 1704 & 40.77 & \\  & Health worker & Occ05 & 46 & 0.48 & 20 & 0.48 & \\  & Domestic help & Occ06 & 82 & 0.86 & 15 & 0.36 & \\  & Student & Occ07 & 117 & 1.23 & 84 & 2.01 & \textless{}0.000 \\  & Not working & Occ08 & 1837 & 19.25 & 719 & 17.20 & \\  & Civil servant & Occ09 & 241 & 2.53 & 197 & 4.71 & \\  & Don’t know & Occ10 & 18 & 0.19 & 4 & 0.10 & \\  & Private employee & Occ11 & 65 & 0.68 & 74 & 1.77 & \\  & Other work & Occ12 & 631 & 6.61 & 274 & 6.56 & \\ \hline Settlement type & & \(n\) & \% & \(n\) & \% & \\ \hline  & Rural & Res01 & 5424 & 56.83 & 2433 & 58.21 & \\  & Urban & Res02 & 4120 & 43.17 & 1747 & 41.79 & \\ \hline Region of residence & & \(n\) & \% & \(n\) & \% & \\ \hline  & Bono Ahafo Region & Reg01 & 3123 & 32.72 & 1426 & 34.11 & \\  & Central Region & Reg02 & 3066 & 32.12 & 1061 & 25.38 & \textless{}0.000 \\  & Volta Region & Reg03 & 3355 & 35.15 & 1693 & 40.50 & \\ \hline \hline \end{tabular}
\end{table}