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Table 3 The relationship between perception about the harm of smoking and other variables after exposure to graphic health warnings during the previous 30 days by South Korean boys and girls

From: The association between new graphic health warning labels on tobacco products and attitudes toward smoking among south Korean adolescents: a national cross-sectional study

Variable Boys Girls
N (%)a AORb (95% CI) n (%)a AORb (95% CI)
Grade
 7th grade 3242 (94.6) 3.96 (3.31–4.75) 3390 (94.0) 2.76 (2.32–3.30)
 8th grade 3082 (88.3) 1.93 (1.67–2.23) 3356 (90.0) 1.77 (1.52–2.06)
 9th grade 2899 (85.0) 1.63 (1.41–1.88) 3337 (89.0) 1.65 (1.43–1.90)
 10th grade 2726 (78.0) 1.16 (1.02–1.31) 3165 (86.4) 1.42 (1.25–1.60)
 11th grade 2773 (74.2) 1.10 (0.98–1.23) 3110 (83.1) 1.16 (1.02–1.31)
 12th grade 2546 (70.6) 1.00   2990 (80.2) 1.00  
Current smoking status
 Smoker 1180 (47.7) 0.25 (0.23–0.28) 404 (52.4) 0.25 (0.21–0.30)
 Non-Smoker 16,088 (85.6) 1.00   18,944 (88.1) 1.00  
e-cigarette status
 User 427 (49.7) 0.85 (0.72–0.99) 108 (52.1) 0.74 (0.53–1.05)
 Non-User 16,841 (82.4) 1.00   19,240 (87.1) 1.00  
Expose to Secondhand Smoke
 Exposed 5317 (78.9) 0.97 (0.90–1.05) 6174 (85.4) 0.99 (0.90–1.09)
 Non-exposed 11,951 (81.9) 1.00   13,174 (87.4) 1.00  
Tobacco Advertise
 Exposed 14,627 (81.6) 1.09 (0.98–1.22) 16,453 (87.3) 1.11 (0.99–1.24)
 Non-exposed 2641 (77.6) 1.00   2895 (83.8) 1.00  
Anti-Tobacco Advertisement
 Exposed 15,057 (82.7) 1.48 (1.35–1.62) 17,699 (87.9) 1.85 (1.64–2.08)
 Non-exposed 2211 (71.2) 1.00   1649 (76.3) 1.00  
Experience of smoking prevention education in school
 Yes 13,580 (82.9) 1.38 (1.26–1.50) 15,325 (87.8) 1.20 (1.10–1.32)
 No 3688 (74.9) 1.00   4023 (83.3) 1.00  
  1. AOR Adjusted odds ratio, CI Confidence interval
  2. aWeighted percentages considering the complex sample survey design
  3. bObtained from multinomial logistic regression analysis with control variables; Region, Family living structure, Perceived academic record, Perceived household economic status, Perceived stress, Depression experience, Current alcohol use
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