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Table 3 Aim 1: Association between wave 4 vaping status, socio-demographics, use of NRT and relapse to smoking during follow-up, n = 374

From: Associations between vaping and relapse to smoking: preliminary findings from a longitudinal survey in the UK

Wave 4 characteristic

% relapsed

Unadjusted (bivariate) analysis

Adjusted (multivariable) analysis

OR

95% CI

p value

OR

95% CI

p value

Vaping status

Daily use

34.5

0.94

0.56

1.58

0.82

1.07

0.61

1.89

0.80

Non-daily use

65.0

3.32

1.23

8.96

0.018

2.45

0.85

7.08

0.098

Past/ever use

45.9

1.52

0.88

2.62

0.14

1.13

0.61

2.07

0.70

Never (ref)

35.9

1

1

1

Ref

1

1

1

Ref

Gender

Male

38.9

0.94

0.62

1.43

0.80

0.94

0.60

1.49

0.80

Female (ref)

40.4

1

1

1

Ref

1

1

1

Ref

Age

Per year increase

-

0.97

0.96

0.98

< 0.001

0.98

0.96

0.99

0.002

Income

Not disclosed, low, moderate

36.6

0.74

0.49

1.13

0.17

0.87

0.55

1.39

0.31

High (ref)

43.7

1

1

1

Ref

1

1

1

Ref

NRT use

Yes

43.7

1.98

1.07

3.64

0.029

1.42

0.72

2.78

0.31

No (ref)

36.6

1

1

1

Ref

1

1

1

Ref

Time quit smoking

2 to 12 months

61.4

4.42

2.82

6.91

< 0.001

3.95

2.48

6.29

< 0.001

> 12 months (ref)

26.5

1

1

1

Ref

1

1

1

Ref

  1. CI confidence interval, NRT nicotine replacement therapy; OR, odds ratio