Table 3 Variables associated with cigarette smoking in diabetic subjects. Figures are frequencies (per cent of row total) and odds ratios (95% confidence intervals) adjusted for each of the variables shown^a.

Sex

Men

166/901 (18)

1.00

0.019

Women

130/945 (13)

0.71 (0.53 to 0.95)

Age

< 45

60/219 (27)

1.00

< 0.001

45–54

49/220 (22)

0.83 (0.58 to 1.17)

55–64

78/510 (15)

0.47 (0.29 to 0.79)

65–74

78/541 (14)

0.41 (0.26 to 0.64)

≥ 75

25/317 (8)

0.18 (0.11 to 0.32)

Not known

6/39 (15)

0.71 (0.32 to 1.57)

Ethnic Group

White

189/893 (21)

1.00

< 0.001

Afro-Caribbean

62/520 (12)

0.53 (0.36 to 0.77)

African

10/170 (6)

0.12 (0.06 to 0.24)

Other

29/220 (13)

0.51 (0.34 to 0.79)

Not known

6/43 (14)

0.69 (0.27 to 1.73)

Duration of Diabetes (years)

0–4

90/484 (18)

1.00

0.001

5–9

86/456 (18)

1.09 (0.70 to 1.69)

10–14

40/307 (13)

0.71 (0.54 to 0.95)

15–19

18/175 (10)

0.49 (0.28 to 0.85)

≥ 20

33/202 (16)

0.79 (0.48 to 1.30)

Not known

29/222 (13)

0.73 (0.48 to 1.10)

Housing Tenure

Owner

73/655 (11)

1.00

< 0.001

Rented

207/1072 (19)

2.02 (1.48 to 2.74)

Not known

16/119 (13)

1.24 (0.77 to 2.00)