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Table 1 Sociodemographic and behavioural characteristics, by current tobacco use in adolescencea

From: Impact of snus use in teenage boys on tobacco use in young adulthood; a cohort from the HUNT Study Norway

  Total Snus use, but not smoke Smoking, but not snus Dual use No tobacco p-value**
Participants 1346 (100) 149 (11) 105 (8) 109 (8) 983 (73)  
Age years, mean ± SD 16.2 ± 1.8 17.0 ± 1.6 16.8 ± 1.6 16,7 ± 1.5 15.9 ± 1.8 < 0.001
13–15 years, n (%) 625 (100) 40 (6) 32 (5) 33 (5) 520 (83)  
16–19 years, n (%) 721 (100) 109 (15) 73 (10) 76 (11) 463 (64) < 0.001
Parents living together
 Mother and father married/ living together, n (%) 1116 (100) 118 (11) 80 (7) 81 (7) 837 (75)  
 Mother and father divorced/ not living together, n (%) 187 (100) 29 (16) 23 (12) 25 (13) 110 (59) < 0.001
Family smoking
 No family member smoke, n (%) 685 (100) 71 (10) 35 (5) 31 (5) 548 (80)  
 Father or mother smokes, n (%) 362 (100) 41 (11) 39 (11) 39 (11) 243 (67)  
 Father and mother smoke, n (%) 235 (100) 30 (13) 22 (9) 29 (12) 154 (66)  
 Siblings and/ or others smoke, but no parent, n (%) 59 (100) 7 (12) 8 (14) 10 (17) 34 (58) < 0.001
Parental alcohol use
 Have never seen parents drunk, n (%) 507 (100) 21 (4) 21 (4) 21 (4) 444 (88)  
 Yes, a few times, n (%) 451 (100) 59 (13) 42 (9) 42 (9) 308 (68)  
 Yes, sometimes a year, monthly or weekly, n (%) 347 (100) 65 (19) 39 (11) 45 (13) 198 (57) < 0.001
Plans for own education
 Not yet decided, n (%) 403 (100) 36 (9) 37 (9) 30 (7) 300 (74)  
 Vocational high school or similar, n (%) 420 (100) 54 (13) 33 (8) 44 (10) 289 (69)  
 High school until 4 years, n (%) 237 (100) 25 (11) 16 (7) 15 (6) 181 (76)  
 University, more than 4 years, n (%) 242 (100) 30 (12) 17 (7) 17 (7) 178 (74) < 0.301
  1. a All the tobacco use categories include both daily and occasional use. Variables with missing data include Parents living together (3%), Family smoking (0.4%), Parental alcohol use (3%), and Plans for own education (3%). ** p-value: test for independence between the socio-demographic and the tobacco variable at baseline