Table 5 Highest educational qualifications

From: Mendelian randomisation analysis of the effect of educational attainment and cognitive ability on smoking behaviour

Highest educational qualification

Age completed education

% of main sample

None

15

12.1

CSE/O level/GCSE

16

26.8

NVQ/HND/HNC

18

6.0

A level

18

12.4

Other professional qualificationa

20

5.1

College or University degree

21

37.5

  1. CSE/O level/GCSE: Academic qualification at 16+; NVQ/HND/HNC: Vocational qualification; A level: Academic qualification at 18+
  2. aFor example, nursing/teaching etc.
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