If that's the only case where this is true, then both the headline and the first sentence of this article are misleading or incorrect. The headline states "Ninety Per Cent of War-Time Casualties Are Civilians" with no qualifiers. The first sentence starts "With civilians accounting for nearly 90 per cent of war-time casualties..." with no qualifiers.

It's disappointing that this UN report is so poorly written as to seem to contradict itself. Do you think ultimately the 90% refers exclusively to explosive use in urban areas, or all war casualties? I'm frankly not sure which thing the article is claiming.