TABLE 4—
Pre-NHIa | Post-NHIb | |||||
Variable | Coefficient | P Value | Odds Ratio | Coefficient | P Value | Odds Ratio |
Constant | 0.4270 | 0.273 | . . . | 0.7512 | 0.024** | . . . |
Infant’s characteristics | ||||||
Gender | 0.0340 | 0.768 | 1.0346 | −0.1545 | 0.160 | 0.8568 |
Gestation period | −0.0747 | 0.827 | 0.9281 | 0.4814 | 0.015** | 1.6183 |
Birth order | 0.2607 | 0.044** | 1.2978 | 0.5001 | 0.001*** | 1.6489 |
Hospital birth | −0.2405 | 0.054* | 0.7863 | 0.2352 | 0.039** | 1.2652 |
Well-baby care | −0.1367 | 0.257 | 0.8722 | 0.4169 | 0.001*** | 1.5172 |
Principal caregiver | ||||||
Grandparents | −0.0136 | 0.930 | 0.9865 | 0.2890 | 0.839 | 1.0293 |
Babysitter | −0.3831 | 0.048** | 0.6817 | −0.2677 | 0.122 | 0.7651 |
Maternal characteristics | ||||||
Age, y | ||||||
25–34 | 0.1687 | 0.217 | 1.1837 | 0.0356 | 0.803 | 1.0363 |
≥35 | −0.1284 | 0.673 | 0.8795 | −0.1867 | 0.408 | 0.8297 |
Education | ||||||
Junior high | 0.2365 | 0.192 | 1.2669 | 0.2448 | 0.325 | 1.2774 |
Senior high | 0.2800 | 0.105 | 1.3232 | 0.3760 | 0.110 | 1.4564 |
Junior college | −0.2284 | 0.381 | 0.7958 | 0.3368 | 0.224 | 1.4005 |
College and above | −0.2882 | 0.358 | 0.7496 | 0.6395 | 0.047** | 1.8955 |
Occupation | ||||||
Government | 0.6462 | 0.023** | 1.9083 | 0.0454 | 0.824 | 1.0464 |
Laborer | 0.2904 | 0.120 | 1.3369 | 0.1302 | 0.392 | 1.1390 |
Farmerc | 0.3495 | 0.622 | 1.4184 | . . . | . . . | . . . |
Businesswoman | 0.3339 | 0.101 | 1.3964 | 0.0144 | 0.932 | 1.0145 |
Other | 0.2524 | 0.334 | 1.2871 | −0.0026 | 0.992 | 0.9974 |
Geographic characteristics | ||||||
Central | 0.1603 | 0.277 | 1.1739 | −0.0144 | 0.918 | 0.9857 |
South | −0.1412 | 0.345 | 0.8683 | −0.1033 | 0.465 | 0.9019 |
East | 0.3129 | 0.228 | 1.3674 | −0.1780 | 0.388 | 0.8369 |
aLog likelihood = −884.1923; LR χ2 (21) = 33.9; Prob > χ2 = .036; pseudo R2 = .018; n = 1398.
bLog likelihood = −1154.7057; LR χ2 (20) = 67.1; Prob > χ2 = .0001; pseudo R2 = .028; n = 3171.
c In the post-NHI period farmer ≠ 0 predicts success perfectly. The dummy variable-farmer was dropped and 13 observations were not used.
*P < .1; **P < .05; ***P < .01.