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Table 4 Indices and scales for smoking behaviour and related beliefs of "lights" and regular cigarette smokers

From: Misperceptions of "light" cigarettes abound: National survey data

Variable* "Lights" smokers
(mean score, 95% CI)
(n = 247)
Regular smokers (mean score, 95% CI)
(n = 910)
Differences in mean scores
(Test of significance)
Heaviness of smoking index (alternate version) 0.42 (0.06 – 0.79) 1.17 (0.98 – 1.37) 0.75, p < 0.001
Awareness of smoking harm (7-item scale) (α = 0.69) 0.53 (0.46 – 0.60) 0.47 (0.43 – 0.51) 0.06, p = 0.138
Smoking has affected health and quality of life (2-item scale) (α = 0.68) 1.99 (1.84 – 2.14) 2.04 (1.98 – 2.11) -0.05, p = 0.521
Concern that smoking will lower health and quality of life in the future (2-item scale) (α = 0.78) 2.44 (2.28 – 2.61) 2.43 (2.35 – 2.51) 0.01, p = 0.889
Self-exempting beliefs (3-item scale, high score means stronger such beliefs) (α = 0.60) 2.88 (2.76 – 3.00) 3.02 (2.95 – 3.09) -0.14, p = 0.043
Intention of quitting (4-point scale, based on questions in Table 3) 1.21 (1.07 – 1.35) 1.11 (1.02 – 1.19) 0.09, p = 0.225
Self-efficacy for quitting (4-point scale) 2.82 (2.57 – 3.06) 2.50 (2.39 – 2.61) 0.32, p = 0.022
Overall attitude to smoking (5-point scale, high score is more positive) 2.40 (2.27 – 2.54) 2.46 (2.39 – 2.53) -0.06, p = 0.433
Attitude to regulation index (2-item index, high score is favourable toward regulation) (α = 0.51) 3.26 (3.13 – 3.40) 3.58 (3.29 – 3.43) -0.32, p = 0.221
  1. * For more details of index composition and development, see an online Methods Report [30]. Alpha (α) scores are for Cronbach's alpha (see Methods).