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Table 3 Generalised estimating equation model of mothers taking any action to help their husbands stop smoking at 3-, 6- and 12-month follow-ups (n = 1283)†

From: Will mothers of sick children help their husbands to stop smoking after receiving a brief intervention from nurses? Secondary analysis of a randomised controlled trial

Predictors Adj. OR‡ 95% CI P-value
Treatment group    
    - Intervention 1.72 (1.46, 2.02) <.001***
    - Control 1   
Baseline factors (mothers’ knowledge)
    • Knowledge of the health hazards of active and passive smoking (scale: 0 – 5) 1.07§ (1.01, 1.13) .03*
Baseline factors (mothers’ attitudes)
    • Perceiving smokers can quit successfully if they are determined 1.05 (0.87, 1.27) .62
    • Perceiving that family support and encouragement can help a smoker quit 0.94 (0.77, 1.14) .53
Baseline factors (mothers’ perceptions)
    • Intend to help their husbands quit smoking in the next month 1.51 (1.21, 1.88) <.001***
    • Think their husbands will quit or/reduce smoking in the next three months 1.29 (1.07, 1.56) <.01**
Baseline factors (mothers’ actions)
    • Have at some time advised their husbands to quit smoking 1.47 (1.11, 1.94) <.01**
    • Have at some time taken action(s) to help their husbands to quit smoking 1.21 (1.02, 1.44) .03*
Baseline factors (fathers’ smoking and quitting profiles)
    • Fathers’ smoking history    
       - > 10 years 1.90 (1.49, 2.42) <.001***
       - 6 to 10 years 1.79 (1.33, 2.40) <.001***
       - ≤ 5 years 1   
    • Fathers making an attempt to stop in the past 12 months 1.28 (1.01, 1.60) .04*
    • Fathers stopping smoking for seven days or longer in that attempt 1.07 (0.89, 1.29) .49
  1. Notes: OR denotes odds ratio; CI denotes confidence interval; * p < 0.05; ** p < 0.01; *** p < 0.001.
  2. * p < 0.05; ** p < 0.01; *** p < 0.001.
  3. † The model excludes 200 cases with incomplete baseline data.
  4. ‡ Adjusted for fathers’ smoking status at follow-up and all other variables in the model.
  5. § Adj. OR per unit increase.