From the BBC:
Of those Palestinians, the status of 279 could not be identified, at least 1,354 were civilians, including 415 children and 214 women, the UN body reported.
So there were 216 members of armed groups killed, and another 725 men who were civilians. Among civilians, more than three times as many men were killed as women, while three times as many civilian men were killed as fighters.
An analysis by the New York Times looked at the names of 1,431 casualties and found that “the population most likely to be militants, men ages 20 to 29, is also the most overrepresented in the death toll. They are 9% of Gaza’s 1.7 million residents, but 34% of those killed whose ages were provided.”
“At the same time, women and children under 15, the least likely to be legitimate targets, were the most underrepresented, making up 71% of the population and 33% of the known-age casualties.”
That is odd, as I understand from reliable sources here on CAF that Israel is either indiscriminately targeting civilians (or intentionally targeting them). But if that was the case, one would think that the demographics of the casualties would be fairly close (not necessarily exactly the same) to the demographics of the population.