Social class of the father at birth of the participant | Number | Adjusted for gender* | Adjusted by educational attainment and gender† | Adjusted by educational attainment, gender, cognition at age 7 and school type† | |||
OR | 95% CI | OR | 95% CI | OR | 95% CI | ||
I/II (Professional/Managerial) | 655 | 0.62 | 0.39 to 1.00 | 0.74 | 0.45 to 1.21 | 0.73 | 0.44 to 1.20 |
III (Skilled non-manual) | 802 | 0.95 | 0.66 to 1.38 | 1.03 | 0.71 to 1.50 | 1.03 | 0.71 to 1.50 |
III (Skilled manual) | 2929 | 1 (reference group) | |||||
IV (Partly skilled) | 900 | 1.18 | 0.85 to 1.64 | 1.08 | 0.77 to 1.50 | 1.07 | 0.77 to 1.49 |
V (Unskilled) | 985 | 1.43 | 1.06 to 1.94 | 1.26 | 0.93 to 1.71 | 1.24 | 0.91 to 1.70 |
Unemployed/unknown/ disabled/dead | 290 | 1.85 | 1.19 to 2.88 | 1.79 | 1.15 to 2.79 | 1.74 | 1.11 to 2.72 |
Complete case analysis (n=6561).
*Model statistically significant, p=−0.002.
†Models statistically significant, p<0.001.