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Table 3 Multiple logistic regression models for female smokers' ever and previous 12 month quit smoking attempts

From: Are quit attempts among U.S. female nurses who smoke different from female smokers in the general population? An analysis of the 2006/2007 tobacco use supplement to the current population survey

Interaction between occupation category and time to first cigarette within 30 min of waking up Adjusted OR 95% CI p-value
Model I: Ever made a quit attempta    
• Female nurses v. other women who smoke WITHIN 30 mins of waking up 3.1 (1.9, 5.1) < 0.0001
• Female nurses v. other women who smoke AFTER 30 mins of waking up 1.1 (0.7, 1.6) 0.66
Model II: Made a quit attempt in the previous 12 monthsb    
• Female nurses v. other women who smoke WITHIN 30 mins of waking up 1.3 (0.9, 1.9) 0.11
• Female nurses v. other women who smoke AFTER 30 mins of waking up 0.69 (0.49, 0.98) 0.04
  1. a Controlling for demographics (age, race, marital status) and smoking characteristics (age of smoking initiation, smoking 12 or more days a month)
  2. b Controlling for demographics (region) and smoking characteristics (years of smoking, cigarettes per day, age of smoking initiation, smoking 12 or more days a month)