Comparison of characteristics across smoking groups based on the 2011 National Health and Wellness Survey (NHWS).

Note. Superscripts represent columns whose percentage is significantly different from the column (A) at p<.05. The reference group for statistical tests was column A, Current Smokers. Superscripts for significant differences across columns B–C only are not shown. SD  =  standard deviation.
†Respiratory/cardiovascular conditions include diagnoses of any of the following: COPD, asthma, emphysema, chronic bronchitis, hypertension, and heart attack.
‡Mental health conditions include any of the following: diagnoses of bipolar disorder, depression, GAD, anxiety, and OCD; and experiences of insomnia and alcoholism.
‡‡Headache/migraine conditions include diagnoses of any of the following: headache and migraine.