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Table 1 Participant characteristics by smoking behaviours

From: The shared genetic architecture of smoking behaviours and psychiatric disorders: evidence from a population-based longitudinal study in England

Participant characteristics

Smoking initiation

 

Moderate-heavy smokers

 

Smoking cessation

Never

Smokers

 

No

Yes

 

Stopped smoking

Still smoke

n = 2408 (37.7%)

n = 3974 (62.3%)

 

n = 3436 (86.5%)

n = 538 (13.5%)

 

n = 3082 (77.5%)

n = 892 (22.5%)

Age (years)

64.6 (9.4)

65.5 (9.5)

 

66.2 (9.5)

60.8 (7.6)

 

66.4 (9.6)

62.4 (8.2)

Gender, men

905 (37.6)

2142 (53.9)

 

1885 (54.9)

257 (47.8)

 

1716 (55.7)

426 (47.8)

Poor self-rated health

398 (16.5)

1006 (25.3)

 

821 (23.9)

185 (34.4)

 

694 (22.5)

312 (35.0)

Currently married

1707 (70.9)

2745 (69.1)

 

2415 (70.3)

330 (61.3)

 

2205 (71.5)

540 (60.5)

Accumulated wealth

        

High

982 (40.8)

1333 (33.5)

 

1239 (36.1)

94 (17.5)

 

1164 (37.8)

169 (18.9)

Mid

784 (32.6)

1175 (29.6)

 

1033 (30.1)

142 (26.4)

 

943 (30.6)

232 (26.0)

Low

642 (26.7)

1466 (36.9)

 

1164 (33.9)

302 (56.1)

 

975 (31.6)

491 (55.0)

Completed schooling (years)

14.3 (3.7)

13.7 (3.7)

 

13.8 (3.8)

13.2 (3.5)

 

13.9 (3.8)

13.0 (3.5)

  1. The values in parenthesis are standard deviations for continuous variables and percentages for categorical variables