They probably had a pretty good idea it would. By then, major battles like Shiloh and Antietam showed that these major battles would have high casualty rates. It was earlier in the war that people were taken by surprise by casualty high rates.
A lot of them weren't happy with the war, and didn't want to be fighting. High casualty rates, low quantity and quality of supplies, among other things, is what caused the high desertion rates.
Casualty rates among Confederate generals during the US Civil War were high. In the war, 55% of all Rebel generals were either killed or wounded . This amounted to 235 of the 435 generals. Most of the Confederate losses among generals occurred as they led their troops into battle.
Emigration.
rapid population growth
Shiloh's high casualty rates finally convinced many people that it would be a long and bloody struggle.
Peasant discontent, incompetence of Nicholas II, Military defeats and high casualty rates in WWI.
high and low
High rates
Casualty may appear drowsy and confused
High interest rates can promote saving, which in turn can cause a downturn in demand, causing surplus products on the market.
This I believe is a very high deposit of calcium level in the blood and usually cause high heart rates or even massive heart attacks