Table 3. Difference in predicted literacy scores between ELGANs and term infants at different levels of maternal social factors from 3rd to 8th gradea, b.
| Difference in predicted literacy scores between | Grade | ||||||
|---|---|---|---|---|---|---|---|
| ELGAN | TERM | 3 | 4 | 5 | 6 | 7 | 8 |
| LL | LH | -100.1 | -105.4*** | -79.1** | -102.3*** | -90.0*** | -85.7*** |
| LL | HL | -125.7*** | -99.5*** | -83.9** | -85.2** | -105.4*** | -73.0** |
| LL | HH | -195.6*** | -202.4*** | -189.7*** | -192.2*** | -170.8*** | -167.9*** |
| LH | LL | 8.6 | 13.9 | -12.4 | 10.8 | -1.6 | -5.8 |
| LH | HL | -71.3* | -39.9 | -50.6 | -28.7 | -61.2* | -33.1 |
| LH | HH | -141.3*** | -142.7*** | -156.4*** | -135.6*** | -126.6*** | -128.0*** |
| HL | LL | 34.2 | 8.0 | -7.6 | -6.3 | 13.9 | -18.5 |
| HL | LH | -20.2 | -51.6 | -41.0 | -62.8* | -30.3 | -58.4 |
| HL | HH | -115.7*** | -148.6*** | -151.6*** | -152.7*** | -111.2*** | -140.6*** |
| HH | LL | 104.1*** | 110.9*** | 98.2*** | 100.6*** | 79.3** | 76.4** |
| HH | LH | 49.8 | 51.2 | 64.9* | 44.1 | 35.1 | 36.6 |
| HH | HL | 24.2 | 57.1 | 60.1* | 61.2* | 19.7 | 49.1 |
Abbreviations: ELGAN, extremely low gestation newborn; Social factors: LL–Low SES, Low Maternal Education; LH–Low SES, High Maternal Education; HL–High SES, Low Maternal Education; HH–High SES, High Maternal Education.
aDifference in predicted literacy scores: Predicted ELGAN literacy scores—predicted term literacy scores;
bStatistical significance are labeled as ***P <.001; **P <.01; *P <.05.
Otherwise, P-value was not significant (P ≥.05).