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. 2017 May 3;20(9):1101–1108. doi: 10.1093/ntr/ntx092

Table 1.

Sample Characteristics for 2012, 2013, and 2014 (Weighted Data)

Included measures Analysis sample (n = 980)
2012
 Sex
  Male, % 50.3
 Age
  15–24 years, % 21.4
  25–39 years, % 25.2
  40–54 years, % 30.0
  55 years and older, % 23.4
 Income
  Low, % 44.4
  Moderate, % 31.5
  High, % 24.0
 Education
  Low, % 31.8
  Moderate, % 47.3
  High, % 20.9
 Heaviness of Smoking Index (HIS), mean (SD)* 2.36 (1.50)
 Smoking status
  Daily smoker, % 93.1
  Occasional smoker, % 6.9
 Quit attempt made in the last year
  Yes, % 29.3
 Attitude toward quitting, mean (SD)** 3.98 (0.76)
 Subjective norm about quitting, mean (SD)** 4.22 (0.79)
 Perceived behavioral control to quit, mean, (SD)** 3.26 (0.92)
2013
 Stages of change, % (n)
  Not planning to quit 17.9 (159)
  Beyond 6 months, 58.9 (524)
  Within the next 6 months 18.6 (165)
  Within the next month 4.6 (41)
 Motivation To Stop Scale (MTSS), % (n)
  I don’t want to stop smoking 18.6 (177)
  I think I should stop smoking but don’t really want to 32.6 (311)
  I want to stop smoking but haven’t thought about when 17.8 (170)
  I really want to stop smoking but I don’t know when I will 16.9 (161)
  I want to stop smoking and hope to soon 8.3 (79)
  I really want to stop smoking and intend to in the next 3 months, 3.4 (32)
  I really want to stop smoking and intend to in the next month 2.4 (23)
 Likert scale (“Are you planning to quit within the next 6 months?”), % (n)
  Very unlikely 20.3 (195)
  Unlikely 24.6 (237)
  Maybe, maybe not 39.1 (376)
  Likely 8.8 (85)
  Very likely 7.2 (69)
2014
 Quit attempt made in the last year
  Yes, % 33.5

*On a scale from 0 to 6, **on a scale from 1 to 5.