Table 1. Characteristics of 2,202 parent-offspring pairs.
| Mother-offspring pairs (N=1,399) |
Father-offspring pairs (N=803) |
|
|---|---|---|
| Parental IQ (NEFR) score at age 11 (Mean (SD)) | 43.6 (15.5) | 42.0 (15.3) |
| Socioeconomic status (N (%)) | ||
| I | 42 ( 3.0) | 32 ( 4.0) |
| II | 102 ( 7.3) | 98 (12.2) |
| III | 919 (65.7) | 481 (59.9) |
| IV | 191 (13.7) | 105 (13.1) |
| V | 145 (10.4) | 87 (10.8) |
| Parental malaise score in 1991 (Mean (SD)) | 3.1 (3.5) | 2.0 (2.8) |
| HOME score in 1991 (Mean(SD)) | 22.0 (3.7) | 22.5 (3.3) |
| Offspring sex (N (%)) | ||
| Male | 691 (49.4) | 390 (48.6) |
| Female | 708 (50.6) | 413 (51.4) |
| Offspring age in 1991 (Mean (SD)) | 8.6 (3.2) | 7.3 (2.6) |
| Offspring IQ (PPVT) score in 1991 (Mean (SD)) | 34.4 (11.1) | 33.8 (10.6) |