Civilian casualty ratio
Some 7 million combatants on both sides are estimated to have died during World War I, along with an estimated 10 million non-combatants, including 6.6 million civilians. The civilian casualty ratio in this estimate would be about 59%. Boris Urlanis notes a lack of data on civilian losses in the Ottoman Empire, but estimates 8.6 million military killed and dead and 6 million civilians killed and dead in the other warring countries. The civilian casualty ratio in this estimate would be about 42%. Most of the civilian fatalities were due to famine, typhus, or Spanish flu rather than combat action. The relatively low ratio of civilian casualties in this war is due to the fact that the front lines on the main battlefront, the Western Front, were static for most of the war, so that civilians were able to avoid the combat zones.
Australian Army during World War I
A total of 416,809 men enlisted in the Army during the war and 331,781 men were sent overseas to serve as part of the AIF. A further 3,011 men served in the AN&MEF. The AIF sustained approximately 210,000 casualties, of which 61,519 were killed or died of wounds. This represented a total casualty rate of 64.8 percent, which was among the highest of any belligerent for the war. About another 4,000 men were captured. The majority of casualties occurred among the infantry (which sustained a casualty rate of 79 percent); however, the artillery (58 percent) and light horse (32 percent) also incurred significant losses.