Via Interfax:
Muslims demonstrate the highest rating of commitment to moral norms if compared to followers of other religions.
Thus, the number of Islam believers with low, middle and high moral status is 17%, 41%, 42% correspondingly. In Orthodoxy - 30%, 39%, 31%, among believers of other religions 46%, 23%, 31%, among atheists - 32%, 43%, 25%.
Such a conclusion was made by authors of the Russian Sociological Research Twenty years of reforms through Russians' eyes held by the Sociological Institute of the Russian Academy of Sciences in all country's territorial and economical districts, in Moscow and St.Petersburg among 1750 respondents aged 18 and older.
(source)