Table 2

Logistic regression of the belief that “my usual brand is less harmful”: International Tobacco Control (ITC) China Wave 3

FactornMy brand less harmful (%)*†Adjusted OR (95% CI)p Value
Demographic variables
Gender
 Male141928.11.00 (reference)
 Female8731.81.08 (0.83 to 1.41)0.57
Age (years)
 18–3923218.81.00 (reference)
 40–5469729.21.79 (1.41 to 2.28)<0.001
 55+57732.92.11 (1.71 to 2.61)<0.001
Ethnicity
 Han141828.51.00 (reference)
 Other8625.61.07 (0.82 to 1.39)0.64
Income
 Low13226.30.87 (0.65 to 1.18)0.38
 Medium57327.30.91 (0.74 to 1.12)0.38
 High71429.41.00 (reference)
 Don’t Know/Refused8428.11.12 (0.77 to 1.62)0.56
Education
 Low17330.41.01 (0.74 to 1.37)0.95
 Medium96527.90.89 (0.73 to 1.07)0.22
 High36528.01.00 (reference)
Smoking behaviour
Every day141828.10.96 (0.64 to 1.43)0.83
Some days8831.61.00 (reference)
Cigarettes per day
 0–1063030.61.00 (reference)
 11–2066326.70.88 (0.72 to 1.06)0.18
 21–3012727.30.92 (0.63 to 1.35)0.67
 31+8628.30.95 (0.63 to 1.43)0.80
Health knowledge
015126.51.01 (0.98 to 1.03)‡0.71
15529.8
28026.3
37824.0
411630.4
512628.8
613825.8
714829.3
815030.2
911925.0
1015630.6
1118830.2
Current brand
‘Regular’16816.11.00 (reference)
‘Light/low tar’129132.72.42 (1.93 to 3.04)<0.001
Don't know4413.60.82 (0.54 to 1.24)0.34
Health Concern
Worried smoking has damaged health
 Very much20426.40.87 (0.63 to 1.17)0.34
 A little79528.90.92 (0.75 to 1.13)0.43
 Not at all/don’t know49828.01.00 (reference)
Worried smoking will damage health
 Very much30527.71.29 (0.94 to 1.77)0.11
 A little76530.31.37 (1.12 to 1.67)0.002
 Not at all/don’t know43025.31.00 (reference)
Describe your health
 1 Poor3831.61.00 (reference)
 27627.30.80 (0.44 to 1.45)0.46
 368927.40.78 (0.49 to 1.24)0.30
 448128.50.82 (0.50 to 1.35)0.43
 5 Excellent21330.30.90 (0.55 to 1.47)0.67
Perceived addiction
 Not at all18032.81.00 (reference)
 A little80628.50.84 (0.63 to 1.12)0.24
 Somewhat38927.70.86 (0.64 to 1.14)0.28
 A lot12924.00.70 (0.45 to 1.08)0.10
My brand smoother
Agree/strongly agree123944.76.86 (5.64 to 8.33)<0.001
Disagree/strongly Disagree/neither/don't know26410.11.00 (reference)
  • Response options for my brand less harmful ‘a little less’ n=1473 and ‘no different/a little more’ n=3588.

  • *Controlling for city.

  • †The belief prevalences presented for each response category of each factor are not adjusted for the other predictor variables in the model. These prevalences and the reported sample sizes represent the respondents who endorsed the belief that their brand is less harmful in each category.

  • ‡Continuous variable.