The Syrian Observatory For Human Rights

800 civilians including 300 children and women killed since the beginning of Russian airstrikes in Syria

SOHR documented the death of 2371 people in Syrian since the 30 of September 2015 which is the date of establishing the Russian airstrikes in Syria, the dead included civilians, rebels, IS, and Jabhat al-Nusra who were killed by thousands of airstrikes targeted Syrian provinces. 

The dead are : 792 civilians ( 180 children, and 116 women ), 496 men and young men, 655 IS, and 924 rebels and Jabhat al-Nusra including non-Syrian militants.