2026-06-30T01:54:32Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/165022025-05-08T08:18:34Zcom_20.500.12105_2052com_20.500.12105_2051com_20.500.12105_15322col_20.500.12105_19608col_20.500.12105_19613col_20.500.12105_16969

00925njm 22002777a 4500 dc Pérez Romero, César author Barrio, Gregorio author Hoyos, Juan author Belza Egozcue, Maria Jose author Regidor, Enrique author Donat López, Marta author Politi, Julieta author Guerras Moreira, Juan Miguel author Pulido, Jose author 2023-04 Background: Question-order changes in repeated surveys can distort comparisons. We want to describe the evolution of drug risk perceptions among Spanish adolescents and assessing whether the 2006 peaks in perceived risk of occasional drug use can be explained by question-order changes. Methods: The subjects were secondary students from a biennial national survey during 2000-2012. A one-off intervention was applied in 2006, replacing the two-adjacent items on perceived risk of occasional and regular use of each drug by non-adjacent items. Annual prevalence of high-risk perception were obtained for occasional and regular use of cannabis, heroin, cocaine and ecstasy. Subsequently, the 2006 percent level change (PC) in such were estimated prevalence using segmented Poisson regression, adjusting for various student and parent covariates. Results: The 2006 PC in prevalence of high-risk perception of occasional drug use ranged from +63% (heroin) to +83% (ecstasy). These PCs were very high in all considered subgroups. However, the 2006 PC in prevalence of high-risk perception of regular drug use ranged from 1% (heroin) to 12% (cannabis). The evolution of preventive interventions does not suggest alternative causal hypotheses for 2006 peaks other than question-order changes. Conclusion: Within the cognitive heuristics framework, the 2006 spikes in perceived risk of occasional drug use were most likely due to a release of the anchor exerted by perceived risk of regular drug use over that of occasional use triggered by 2006 question-order changes. In repeated surveys it is inexcusable to pre-test the effect of any change in questionnaire format. Front Public Health. 2023 Apr 14;11:971239. 10.3389/fpubh.2023.971239 2296-2565 Frontiers in public health 37124773 http://hdl.handle.net/20.500.12105/16502 Question-order Drug use Risk perception Natural experiment Cognitive heuristics Anchoring Abrupt peaks in perceived risk of occasional drug use after changing the question order in a repeated self-administered survey