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Table 1 Demographic characteristics and distributions of EC related exposure, attitudes and susceptibility

From: Exposure to e-cigarette advertising, attitudes, and use susceptibility in adolescents who had never used e-cigarettes or cigarettes

  Na (%)b
Sex (male) 3821 50.8
Age, years (SD)c 14.8 (1.7) 14.9 (1.9)
Grade
 Secondary 1 1159 17.6
 Secondary 2 1311 16.7
 Secondary 3 1514 16.3
 Secondary 4 1440 16.8
 Secondary 5 1412 17.4
 Secondary 6 246 15.2
Perceived family affluence
 Relatively poor 476 6.8
 Poor to average 1753 25.8
 Average 4068 56.9
 Average to rich 659 9.0
 Relatively rich 107 1.5
Parental cigarette/EC use 2534 36.2
Number of types of EC advertising exposure
 0 4888 71.2
 1 1462 21.5
  ≥ 2 528 7.3
EC use harms health
 Definitely not 295 3.8
 Probably not 337 4.8
 Probably will 1631 22.4
 Definitely will 4811 69.1
Attitude towards EC use
 Very negative 3318 47.8
 Negative 2027 28.5
 Neutral 1576 21.6
 Positive 95 1.4
 Very positive 54 0.7
The tobacco industry is respectable
 Definitely not 235 2.9
 Probably not 1674 22.7
 Probably yes 2677 38.3
 Definitely yes 2475 36.1
Tobacco companies make youth smoke
 Definitely not 920 13.1
 Probably not 2554 36.9
 Probably yes 2457 34.7
 Definitely yes 1135 15.3
Being susceptible to EC use 496 6.9
  1. aNumbers unless otherwise stated
  2. bProportions unless otherwise stated. All proportions were weighted by age, sex, and grade distributions of the target population provided by the Education Bureau of the Hong Kong Government
  3. cMean age and standard deviation; unweighted under the column “N” and weighted under the column “%”