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Table 1 Sample characteristics

From: Are smokers who are regularly exposed to e-cigarette use by others more or less motivated to stop or to make a quit attempt? A cross-sectional and longitudinal survey

  Baseline sample (n = 12,787) Follow-up sample (n = 1580) p*
Demographic characteristics
 Age, % (n)
  16–24 19.1 (2439) 11.9 (188) < 0.001
  25–34 19.5 (2495) 13.1 (207)
  35–44 15.9 (2033) 14.0 (221)
  45–54 16.9 (2163) 20.5 (324)
  55–64 14.7 (1883) 20.6 (325)
  65+ 13.9 (1774) 19.9 (315)
 Sex, % (n)
  Men 53.2 (6799) 52.5 (829) 0.227
  Women 49.8 (5988) 47.5 (751)
 Social grade, % (n)
  ABC1 40.3 (5156) 43.5 (687) < 0.001
  C2DE 59.7 (7631) 56.5 (893)
Smoking characteristics
 Exposure to e-cigarette use by others, % (n)
  No 74.2 (9484) 74.6 (1179) 0.688
  Yes 25.8 (3303) 25.4 (401)
 Exposure to cigarette smoking by others, % (n)
  No 33.6 (4294) 36.0 (569) 0.002
  Yes 66.4 (8493) 64.0 (1011)
 Own e-cigarette use, % (n)
  No 80.4 (10284) 79.0 (1248) 0.416
  Yes 19.6 (2503) 21.0 (332)
 Past quit attempt, % (n)
  No 71.8 (9178) 71.0 (1122) 0.203
  Yes 28.2 (3609) 29.0 (458)
 High motivation to stop smoking, % (n)
  No 85.1 (10887) 85.0 (1343) 0.605
  Yes 14.9 (1900) 15.0 (237)
 Prospective quit attempt, % (n)
  No NA 67.9 (1073)
  Yes NA 32.1 (507)
  1. *Comparison of participants who did and did not provide follow-up data
  2. Assessed with the question: ‘Are you using any of the following either to help you stop smoking, to help you cut down or for any other reason at all?’