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Table 2 Relative risks for reporting tobacco messages for NIKE ad versus neutral ad*

From: Children and youth perceive smoking messages in an unbranded advertisement from a NIKE marketing campaign: a cluster randomised controlled trial

Outcome Exposure ad
(N = 205)
n (%)
Neutral ad
(N = 192)
n (%)
Relative risk
(95% confidence interval)
P-value
Presence of smoking-related messages     
Slogan refers to smoking 77 (37.6) 1 (0.5) 72.1 (10.3-503.5) <0.001
Ad contains images of smoking-related products 104 (50.7) 20 (10.4) 4.87 (2.86-8.29) <0.001
Ad is promoting cigarettes 80 (39.0) 17 (8.9) 4.41 (2.64-7.36) <0.001
  1. * Data represent self-reported tobacco messages from open-ended questions