Table 1

Distribution of men and women aged 39–79 years, EPIC-Norfolk cohort, 1993–1997 by social class, educational level, deprivation category, and cigarette smoking status at baseline survey

Men n=12579Women n=15132
‡Based on Townsend deprivation scores.
Mean age in years (SD)59.1(9.4)58.5(9.4)
Current smokers % (n)12.8(1605)11.9(1777)
Former smokers % (n)54.3(6793)32.1(4813)
Never smokers % (n)32.8(4105)56.0(8398)
Social class % (n)
    I7.4(935)6.1(922)
    II36.7(4622)33.6(5090)
    III Non-manual12.3(1549)20.2(3050)
    III Manual26.4(3326)21.7(3279)
    IV13.8(1742)13.9(2105)
    V3.2(405)4.5(686)
Educational level % (n)
    Degree or equivalent14.6(1833)10.2(1540)
    A level or equivalent45.1(5670)24.8(3760)
    O level or equivalent8.5(1075)16.0(2424)
    No qualifications31.8(4001)49.0(7408)
Deprivation category‡ % (n)
    1 (<−3.80)20.4(2564)19.9(3016)
    2 (−3.79 to −2.92)21.0(2637)20.5(3105)
    3 (−2.91 to −2.09)19.0(2387)19.0(2869)
    4 (−2.08 to −0.55)20.0(2512)20.2(3062)
    5 (>−0.54)19.7(2479)20.4(3080)