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Table 2 Multivariable logistic regression analyses * for point prevalence abstinence , 6-month continuous abstinence , and sustained abstinence

From: Long-term follow-up of a high- and a low-intensity smoking cessation intervention in a dental setting– a randomized trial

Point prevalence abstinence

Variable

OR

95% CI for OR

p-value

Program; HIT vs. LIT (ref)

1.21

0.59-2.49

.599

Gender; men vs. women (ref)

0.54

0.20-1.46

.226

Point prevalence at 12-month follow-up; yes vs. no (ref)

13.82

6.44–29.65

<.001

Other support at 12-month follow-up; yes vs. no (ref)

4.37

1.13–16.95

.033

§ Program; HIT vs. LIT (ref)

1.12

0.56-2.26

.751

§ Gender; men vs. women (ref)

0.67

0.26-1.71

.405

§ 6-month continuous abstinence at 12-month follow-up; yes vs. no (ref)

13.53

5.66–32.32

<.001

§ Other support at 12-month follow-up; yes vs. no (ref)

4.95

1.30–18.85

.019

6-month continuous abstinence

Variable

OR

95% CI for OR

p-value

Program; HIT vs. LIT (ref)

1.26

0.65-2.43

.487

Gender; men vs. women (ref)

0.55

0.23-1.35

.193

Point prevalence at 12-month follow-up; yes vs. no (ref)

14.10

7.05–28.19

<.001

Program; HIT vs. LIT (ref)

1.10

0.57-2.13

.779

Gender; men vs. women (ref)

0.62

0.26-1.51

.297

6-month continuous abstinence at 12-month follow-up; yes vs. no (ref)

18.70

8.30–42.16

<.001

Sustained abstinence **

Variable

OR

95% CI for OR

p-value

Program; HIT vs. LIT (ref)

3.44

1.34–8.83

.010

Gender; men vs. women (ref)

1.21

0.41-3.60

.733

  1. * Performed with variables significant at p<0.02 in the univariable analyses, only including variables up to 12-month follow-up.
  2. Separate models for point prevalence at 12-month follow-up and for 6-month continuous abstinence at 12-month follow-up.
  3. N=210, Nagelkerke R-Square 39.2%, Hosmer and Lemeshow test of goodness of fit p=0.884.
  4. § N=210, Nagelkerke R-Square 33.5%, Hosmer and Lemeshow test of goodness of fit p=0.920.
  5. N=284, Nagelkerke R-Square 31.7%, Hosmer and Lemeshow test of goodness of fit p=0.969.
  6. N=284, Nagelkerke R-Square 30.7%, Hosmer and Lemeshow test of goodness of fit p=0.932.
  7. ** N=210, Nagelkerke R-Square 11.7%, Hosmer and Lemeshow test of goodness of fit p=0.970.