Social network mechanisms of ethnic inequalities in smoking among adolescents

Radó, Márta K and Kisfalusi, Dorottya and Laverty, Anthony A and van Lenthe, Frank J and Been, Jasper V and Takács, Károly (2026) Social network mechanisms of ethnic inequalities in smoking among adolescents. EUROPEAN JOURNAL OF PUBLIC HEALTH. ISSN 1101-1262

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Abstract

Despite decreasing overall smoking rates, ethnic inequalities in smoking persist. Although smoking is largely a social behavior, the underlying social network mechanisms for this are still unclear. We disentangled and tested potential social network mechanisms responsible for persistent ethnic inequalities in smoking. We applied Stochastic Actor-Oriented Models for 1644 friendships of 299 Roma and Non-Roma Hungarian adolescents in nine classes and 1605 antipathies of 294 adolescents in eight school classes over two panel waves. Adolescents were more likely to nominate same-ethnic peers as friends [odds ratio (OR) of Non-Roma nominating a Non-Roma = 1.15; 95% confidence interval (CI) = 1.03–1.28] and less likely to nominate them as antipathies (OR of Roma nominating a Roma = 0.77; 95% CI = 0.68–0.87). Smokers were more likely than non-smokers to receive friendship nominations (OR = 1.18; 95% CI = 1.01–1.38) but did not statistically significantly differ in antipathy nominations (OR = 1.16; 95% CI = 0.97–1.39). Non-Roma smokers tended to nominate as friends other Non-Roma smokers (OR = 1.37; 95% CI = 1.12–1.68) and avoided nominating Roma non-smokers (OR = 0.55; 95% CI = 0.35–0.87). Neither friends (OR = 1.28; 95% CI = 0.88–1.86) nor antipathies (OR = 1.15; 95% CI = 0.69–1.91) influenced peers’ smoking behaviors significantly. We identified three processes that could potentially contribute to ethnic smoking inequalities: (i) adolescents tend to nominate same-ethnic peers as friends, (ii) smokers are attractive for friendship selection, and (iii) Roma received higher encouragement to smoke than Non-Roma since Non-Roma received more while Roma received less friendship nomination from Non-Roma peers if they do not smoke. We found no impact of antipathy on smoking.

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