Table 1.
Descriptive Characteristics, National Child Development Study, N=11,469
| Variable | %/Mean (SD) |
|---|---|
| Died | 2.34 |
| Age 33 drinking | |
| Abstainers | 4.50 |
| Light drinkers | 78.13 |
| Moderate drinkers | 10.22 |
| Heavy drinkers | 7.15 |
| Early Life Factors | |
| Male | 49.12 |
| Mother’s prenatal smoking | 36.80 |
| Family social class | |
| Unskilled/Semi-skilled | 37.88 |
| Skilled | 49.92 |
| Managerial/Professional | 13.20 |
| Parent education | 55.48 |
| Age 7 housing accommodations | 82.68 |
| Age 7 parent home ownership | 44.76 |
| Age 11 academic ability, unstandardized | 42.94 (16.14) |
| Age 7 social maladjustment | 7.98 (8.35) |
| Age 16 internalizing behavior | 0.38 (0.35) |
| Age 16 externalizing behavior | 0.15 (0.22) |
| Age 16 smoking | |
| Never smoker | 65.04 |
| <1pack/wk | 13.54 |
| 1 pack+/wk | 21.42 |
| Age 23 smoking | |
| Never smoker | 50.22 |
| Former smoker | 10.17 |
| Current smoker | 39.60 |
| Age 16 drinking | |
| Abstainers | 6.49 |
| Light | 40.92 |
| Mod | 31.29 |
| Heavy | 21.29 |
| Age 23 drinking | |
| Abstainers | 4.32 |
| Light drinkers | 71.15 |
| Moderate drinkers | 12.54 |
| Heavy drinkers | 11.98 |
| Education | |
| NVQ 0 | 13.36 |
| NVQ 1 | 13.81 |
| NVQ 2 | 36.35 |
| NVQ 3 | 17.31 |
| NVQ 4 | 9.99 |
| NVQ 5 or 6 | 9.19 |
| Age 23 social class | |
| Unemployed | 8.36 |
| Unskilled/Semi-skilled | 4.05 |
| Skilled | 67.28 |
| Managerial/Professional | 20.31 |
| Social Support | |
| Age 33 instrumental support | 6.70 (3.43) |
| Age 33 emotional support | 5.13 (2.53) |
| Physical Health | |
| Age 16 illness | 6.80 |
| Age 23 longstanding illness | 4.46 |
| Age 23 self-rated health (good/excellent) | 90.88 |
| Age 33 health | |
| Poor | 1.76 |
| Fair | 11.88 |
| Good | 51.99 |
| Excellent | 34.38 |
Note. NVQ= National Vocational Qualifications. SD=standard deviation.