I've been reading this thread -- many people asked about civilian and other casualties during the first Gulf War. A Google search produced many sites: the one below (quoted in part) seems to be comprehensive.

In Iraq, the civilian death toll in 1991 - after the massive bombing campaign was stopped - rose to 111,000 people. Shortages of medicine and damaged health facilities contributed to this high rate of "delayed mortality." Of these 111,000 deaths, 70,000 were children under 15 years of age.
UNICEF has documented that the combined effects of the Gulf War and over a decade of economic sanctions resulted in the deaths of 500,000 children due to malnutrition, diarrhea, and other preventable diseases.
Link:(sorry it's pdf)GulfWarFacts