# Neural Networks for Early Diagnosis of Postpartum PTSD in Women after Cesarean Section
## 3 Materials and Methods
### Data and Measures
\begin{table}
\begin{tabular}{l l c c c c c c c c} \hline  & & \multicolumn{6}{c}{**Diagnosis**} & \multicolumn{2}{c}{\(p\)**-Value *} \\ \cline{3-10}  & & \multicolumn{2}{c}{**Free**} & \multicolumn{2}{c}{**Profile**} & \multicolumn{2}{c}{**PTSD**} & \multicolumn{1}{c}{\(p\)**-Value *} \\ \cline{3-10}  & & **N** & **\%** & **N** & **\%** & **N** & **\%** & & \\ \hline v1. Residence & 1. City & 303 & 81.2\% & 25 & 6.7\% & 45 & 12.1\% & 0.665 \\  & 2. Village & 76 & 79.2\% & 9 & 9.4\% & 11 & 11.5\% & 0.665 \\ \hline  & 1. \(\leq\)20 & 17 & 77.3\% & 0 & 0.0\% & 5 & 22.7\% & \\  & 2. \(\leq\)25 & 32 & 76.2\% & 5 & 11.9\% & 5 & 11.9\% & \\  & 3. \(\leq\)30 & 77 & 76.2\% & 5 & 5.0\% & 19 & 18.8\% & \\ v2. Age & 4. \(\leq\)35 & 107 & 80.5\% & 15 & 11.3\% & 11 & 8.3\% & 0.08 \\  & 5. \(\leq\)40 & 121 & 83.4\% & 9 & 6.2\% & 15 & 10.3\% & \\  & 6. \(\leq\)45 & 23 & 95.8\% & 0 & 0.0\% & 1 & 4.2\% & \\  & 7. \(\leq\)45 & 2 & 100.0\% & 0 & 0.0\% & 0 & 0.0\% & \\ \hline  & 0. Single & 3 & 100.0\% & 0 & 0.0\% & 0 & 0.0\% & \\ v3. Family Status & 1. In relationship & 29 & 72.5\% & 3 & 7.5\% & 8 & 20.0\% & \\  & 2. Married & 339 & 81.7\% & 30 & 7.2\% & 46 & 11.1\% & 0.551 \\  & 3. Engaged & 6 & 85.7\% & 0 & 0.0\% & 1 & 14.3\% & \\  & 4. Divorced & 2 & 50.0\% & 1 & 25.0\% & 1 & 25.0\% & \\ \hline  & 0. Primary & 29 & 74.4\% & 3 & 7.7\% & 7 & 17.9\% & \\  & 1. Jr High Sch. & 22 & 73.3\% & 4 & 13.3\% & 4 & 13.3\% & \\ v4. Educational Status & 2. High Sch. & 159 & 81.1\% & 14 & 7.1\% & 23 & 11.7\% & \\  & 3. Uni & 140 & 82.4\% & 12 & 7.1\% & 18 & 10.6\% & \\  & 4. MSc & 23 & 82.1\% & 1 & 3.6\% & 4 & 14.3\% & \\  & 5. PhD & 6 & 100.0\% & 0 & 0.0\% & 0 & 0.0\% & \\ \hline  & 1. Employee & 116 & 85.3\% & 7 & 5.1\% & 13 & 9.6\% & \\  & (Pub/Priv) & 2. Freelance & 52 & 77.6\% & 5 & 7.5\% & 10 & 14.9\% & \\ v5. Occupation & 3. Health care & 30 & 78.9\% & 5 & 13.2\% & 3 & 7.9\% & 0.277 \\  & 4. Educators & 35 & 81.4\% & 1 & 2.3\% & 7 & 16.3\% & \\  & 5. Household & 102 & 82.9\% & 10 & 8.1\% & 11 & 8.9\% & \\  & 6. Unemployed & 44 & 71.0\% & 6 & 9.7\% & 12 & 19.4\% & \\ \hline  & 1. Low & 103 & 75.7\% & 11 & 8.1\% & 22 & 16.2\% & \\ v6. Financial Status & 2. Medium & 266 & 83.1\% & 22 & 6.9\% & 32 & 10.0\% & 0.399 \\  & 3. High & 10 & 76.9\% & 1 & 7.7\% & 2 & 15.4\% & \\ \hline v8. Nationality & 1. Greek & 343 & 81.1\% & 30 & 7.1\% & 50 & 11.8\% & \\  & 2. Other & 36 & 78.3\% & 4 & 8.7\% & 6 & 13.0\% & 0.887 \\ v9. Minority & 0. No & 356 & 81.7\% & 31 & 7.1\% & 49 & 11.2\% & \\  & 1. Yes & 23 & 69.7\% & 3 & 9.1\% & 7 & 21.2\% & 0.196 \\ \hline \multicolumn{10}{c}{* \(p\)-values refer to Pearson chi-square.} \\ \end{tabular}
\end{table} 
Table 1: Demographic data. Counts and percentages in corresponding diagnosis. \begin{table}
\begin{tabular}{l l c c c c c c c} \hline  & & \multicolumn{6}{c}{**Diagnosis**} & \multicolumn{2}{c}{\(p\)**-Value *} \\ \cline{3-10}  & & \multicolumn{2}{c}{**Free**} & \multicolumn{2}{c}{**Profile**} & \multicolumn{2}{c}{**PTSD**} & \multicolumn{1}{c}{\(p\)**-Value *} \\ \cline{3-10}  & & **N** & **\%** & **N** & **\%** & **N** & **\%** & \\ \hline v10. Parity & 0. No & 158 & 78.2\% & 13 & 6.4\% & 31 & 15.3\% & \\ v10. Parity & 1. One birth & 149 & 84.2\% & 12 & 6.8\% & 16 & 9.0\% & 0.278 \\  & 2. \(>\)1 & 72 & 80.0\% & 9 & 10.0\% & 9 & 10.0\% & \\ \hline  & 0. No prev. labor & 160 & 78.4\% & 13 & 6.4\% & 31 & 15.2\% & \\ v11. Previous labor & 1. Vaginal & 25 & 67.6\% & 3 & 8.1\% & 9 & 24.3\% & \\  & 2. C-section & 188 & 85.8\% & 16 & 7.3\% & 15 & 6.8\% & 0.013 \\  & 3. Vag. and CS & 6 & 66.7\% & 2 & 22.2\% & 1 & 11.1\% & \\ \hline v12. Type of conception & 1. Normal & 342 & 79.7\% & 33 & 7.7\% & 54 & 12.6\% & \\  & 2. IVF & 37 & 92.5\% & 1 & 2.5\% & 2 & 5.0\% & \\ \hline \end{tabular}
\end{table} 
Table 2: Prenatal health variables. Counts and percentages in corresponding diagnosis. * \(p\)-values refer to Pearson chi-square.