TABLE 3.
Risk of WLD (without RD)a Associated with S/LI According to Gender
| n | Number of WLD (without RD) Cases by Age 19 Years | Cumulative Incidence of WLD (without RD) by Age 19 Years, % | Unadjusted HRb (95% CI), P | Adjusted HRc (95% CI), P | |
|---|---|---|---|---|---|
| Both genders | |||||
| S/LI | 294 | 24 | 9.1% | 3.44 (2.24–5.27), <.01 | 2.74 (1.74–4.32), <.01 |
| Non-S/LI | 5400 | 179 | 4.1% | 1.00 | 1.00 |
| Boys | |||||
| S/LI | 196 | 16 | 9.2% | 2.88 (1.70–4.87), <.01 | 2.30 (1.30–4.08), <.01 |
| Non-S/LI | 2751 | 108 | 4.8% | 1.00 | 1.00 |
| Girls | |||||
| S/LI | 98 | 8 | 8.9% | 4.17 (2.00–8.68), <.01 | 3.81 (1.81–8.02), <.01 |
| Non-S/LI | 2649 | 71 | 3.3% | 1.00 | 1.00 |
a
Written Learning Disability and Reading Disability assessed by any of the 3 formulas (Regression Formula Minnesota, Discrepancy Formula, Low Achievement Formula).
b
P = .385 for gender*S/LI interaction.
c
Models for boys and girls separately have been adjusted for child’s race (white vs non-white), child’s birth weight, mother’s education level, and mother’s age. Model with both genders combined has been adjusted for sex, child’s race (white vs non-white), child’s birth weight, mother’s education level, and mother’s age. P = .253 for gender*S/LI interaction.