Psychological functioning (PF) scores in relation to categories of birth weight (registered birth weight in relation to expected birth weight) and paternal education (1970). Means (SD) and 95% confidence intervals (CI)
| Birth weight category (centiles) | Paternal educational category | Number | PF score mean (SD) | 95%CI |
|---|---|---|---|---|
| Lowest (1%–5%) | lowest | 2041 | 4.61 (1.81) | 4.53 to 4.69 |
| median-low | 3394 | 5.18 (1.78) | 5.12 to 5.23 | |
| median-high | 188 | 5.57 (1.73) | 5.33 to 5.82 | |
| highest | 372 | 5.54 (1.75) | 5.36 to 5.72 | |
| Second lowest (6%–10%) | lowest | 2093 | 4.73 (1.84) | 4.66 to 4.81 |
| median-low | 3348 | 5.22 (1.77) | 5.16 to 5.28 | |
| median-high | 212 | 5.39 (1.87) | 5.13 to 5.64 | |
| highest | 369 | 5.74 (1.71) | 5.57 to 5.91 | |
| Medium (11%–90%) | lowest | 32176 | 4.94 (1.76) | 4.92 to 4.96 |
| median-low | 56630 | 5.40 (1.74) | 5.39 to 5.42 | |
| median-high | 3919 | 5.77 (1.71) | 5.72 to 5.83 | |
| highest | 8109 | 5.78 (1.76) | 5.74 to 5.82 | |
| Second highest (91%–95%) | lowest | 2177 | 4.98 (1.80) | 4.91 to 5.06 |
| median-low | 3563 | 5.45 (1.76) | 5.39 to 5.51 | |
| median-high | 289 | 5.82 (1.71) | 5.63 to 6.02 | |
| highest | 596 | 5.93 (1.76) | 5.79 to 6.07 | |
| Highest (96%–100%) | lowest | 2169 | 4.94 (1.79) | 4.86 to 5.01 |
| median-low | 3545 | 5.45 (1.80) | 5.39 to 5.51 | |
| median-high | 252 | 5.83 (1.63) | 5.63 to 6.03 | |
| highest | 598 | 5.81 (1.77) | 5.67 to5.96 |