Table 3 Results of logistic regression analysis between childhood IQ and education level and upward mobility

Age 5 to 49-51

IQ

383

1.05

1.04-1.07

< 0.001

1.03

1.01-1.05

0.004

Education level:

387

< 0.001

0.006

None

1.00

1.00

O level

1.86

1.14-3.03

1.56

0.88-2.73

A level

3.72

1.84-7.53

2.59

1.15-5.83

University

10.20

3.01-34.56

8.06

1.71-37.84

Age 5 to 25

IQ

382

1.04

1.02-1.05

< 0.001

1.01

0.993-1.04

0.20

Education level:

388

< 0.001

0.005

None

1.00

1.00

O level

1.61

0.99-2.60

1.47

0.84-2.56

A level

6.21

2.66-14.52

5.11

1.93-13.53

University

6.79

2.30-20.07

6.09

1.60-23.17

Age 25 to 49-51

IQ

261

1.05

1.03-1.07

< 0.001

1.05

1.02-1.07

< 0.001

Education level:

283

0.19

0.39

None

1.00

1.00

O level

1.16

0.68-1.98

0.80

0.42-1.51

A level

2.06

0.98-4.36

1.24

0.48-3.21

University

2.15

0.68-6.79

2.89

0.56-14.95