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Article

Вопросник для оценки риска систематических ошибок в нерандомизированных сравнительных исследованиях: руссоязычная версия шкалы Ньюкасл-Оттава

Реброва О. Ю., Федяева В. К.

The article presents the Russian-language version of the questionnaire to assess the risk of systematic bias in case-control studies and cohort studies. These questionnaires are translations of the Newcastle-Ottawa Scale to assess the methodological quality of non-randomized studies. The risk of systematic bias in the original scale is not stratifi ed, but in practice the Cochrane Collaboration considered trials with 5 or fewer points (of 9) to have a low methodological quality. We propose to assess the methodological quality not only by the assessing risk of systematic errors, but also the risk of incorrectness of statistical analysis.