In our report: “C-1 Combat Mortality: Why is Marine Combat Mortality Less than That of the Army (JCS) (March 1998),” volume 2, Figure 145 is the following table. It was part of the presentation done by Col. (Dr.) Ron Bellamy.
From Table 1, page 4, Medical Statistics in WWII, Office of the Surgeon General, US Army, 1975
The Adjutant The Surgeon
Type of Casualty General’s Report General’s Report
Wounded in Action 592,170 723,560
Carded for record only — 123,836
Wounded admissions — 599,724
Total Deaths 216,005 213,030
Killed in action 189,696 192,220
Died of wounds 26,309 20,810
Other battle deaths 18,869 16,793
Total killed and wounded 808,175 936,590
Ratio, Wounded/Deaths 2.74 3.40
Percent Deaths 0.27 0.23
If I calculate the wounded-to-killed ratios based upon KIA + DOW/WIA (wounded admissions) it comes out to 2.74 (as shown above) and 2.82-to-1 (vice 3.40).
Anyhow, the carded for record discussion for Vietnam is a little more complex. Maybe later.