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Investigation of bias related to differences between case and control interview dates in five INTERPHONE countries.

Turner, Michelle C; Sadetzki, Siegal; Langer, Chelsea E.; Villegas, Rodrigo; Figuerola, Jordi; Armstrong, Bruce K; Cherit, Angela; Giles, Graham G; Krewski, Daniel; Hours, Martine; McBride, Mary L; Parent, Marie-Élise; Richardson, Lesley; Siemiatycki, Jack; Woodward, Alistair; Cardis, Elisabeth (2016). Investigation of bias related to differences between case and control interview dates in five INTERPHONE countries. Annals of Epidemiology , vol. 26 , nº 12. 827.e2-832.e2. DOI: 10.1016/j.annepidem.2016.09.013.

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Résumé

PURPOSE: Associations between cellular telephone use and glioma risk have been examined in several epidemiological studies including the 13-country INTERPHONE study. Although results showed no positive association between cellular telephone use and glioma risk overall, no increased risk for long-term users, and no exposure-response relationship, there was an elevated risk for those in the highest decile of cumulative call time. However, results may be biased as data were collected during a period of rapidly increasing cellular telephone use, and as controls were usually interviewed later in time than cases.

METHODS: Further analyses were conducted in a subset of five INTERPHONE study countries (Australia, Canada, France, Israel, New Zealand) using a post hoc matching strategy to optimize proximity of case-to-control interview dates and age.

RESULTS: Although results were generally similar to the original INTERPHONE study, there was some attenuation of the reduced odds ratios and stronger positive associations among long-term users and those in the highest categories for cumulative call time and number of calls (eighth-ninth and 10th decile).

CONCLUSIONS: Proximity and symmetry in timing of case-to-control interviews should be optimized when exposure patterns are changing rapidly with time.

Type de document: Article
Mots-clés libres: Case-control study; Cellular telephone; Glioma; Matching
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 20 févr. 2019 16:34
Dernière modification: 20 févr. 2019 16:34
URI: http://espace.inrs.ca/id/eprint/5299

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