Table 4 Grid ordinal logistic model fitting by separate low birth weight datasets
| Â | Est | Se | Zval | Pval |
|---|---|---|---|---|
\( {\widehat{\alpha}}_1 \) | −0.415 | 0.719 | −0.578 | 0.562 |
\( {\widehat{\alpha}}_2 \) | 0.828 | 0.722 | 1.147 | 0.251 |
\( {\widehat{\alpha}}_3 \) | 1.807 | 0.730 | 2.473 | 0.013 |
\( {\widehat{\beta}}_1 \) | 0.016 | 0.027 | 0.594 | 0.552 |
\( {\widehat{\beta}}_2 \) | −0.980 | 0.339 | −2.891 | 0.003 |
\( {\widehat{\beta}}_3 \) | −1.245 | 0.424 | −2.933 | 0.003 |
\( {\widehat{\beta}}_4 \) | −1.028 | 0.318 | −3.233 | 0.001 |
\( {\widehat{\beta}}_5 \) | −0.915 | 0.419 | −2.178 | 0.029 |
\( {\widehat{\beta}}_6 \) | −0.991 | 0.618 | −1.605 | 0.108 |
\( {\widehat{\beta}}_7 \) | −0.972 | 0.402 | −2.416 | 0.015 |
\( {\widehat{\beta}}_8 \) | −0.031 | 0.289 | −0.107 | 0.914 |