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Table 1 Demographic Characteristics of the Participants (N = 856)

From: A descriptive study of a Smoke-free Teens Programme to promote smoke-free culture in schools and the community in Hong Kong

Gender, n (%)
 Male 284 (33.2)
 Female 556 (65.0)
 Missing 16 (1.8)
Age, mean (SDa) 15.2 (1.1)
Year of study, n (%)
 Secondary 1 0 (0.0)
 Secondary 2 19 (2.2)
 Secondary 3 160 (18.7)
 Secondary 4 394 (46.0)
 Secondary 5 268 (31.3)
 Secondary 6 11 (1.3)
 Missing 4 (0.5)
Smoking status, n (%)
 Never smoker 703 (82.1)
 Current smoker 1 (0.1)
 Ex-smoker 12 (1.4)
 Missing 140 (16.4)
Living with smoker(s), n (%)
 Yes 458 (53.5)
 No 393 (45.9)
 Missing 5 (0.6)
Living with whom smoker(s), n (%b)
 Father 302 (65.9)
 Mother 59 (12.9)
 Brother 18 (3.9)
 Sister 10 (2.2)
 Grandfather 84 (18.3)
 Grandmother 20 (4.4)
 Other relatives 165 (36.0)
 Others 25 (5.5)
  1. aSD standard deviation
  2. bThe percentages were calculated using the total number of the participants who living with smokers (N = 458) as dominator