A study1 of the various factors influencing the mortality of diabetic coma in 315 consecutive cases at the Los Angeles County General Hospital from 1930 through 1940 brought out the following conclusions:
Factors of greatest importance in influencing the mortality of diabetic coma are (a) the age of the patient, (b) the level of diastolic blood pressure, (c) the degree of unconsciousness of the patient and (d) the severity of the complicating disease.
Factors of lesser importance in estimating severity of diabetic coma are (a) the duration of coma before treatment is instituted, (b) the level of blood nonprotein nitrogen and (c) the level of blood sugar.
There is no relation between the carbon dioxide-combining power of the blood and mortality.
The previous study suggested that perhaps some of these factors are "primary," whereas others are "secondary," produced by and dependent on fundamental changes in the
COLLEN MF. INTERRELATION OF THE FACTORS INFLUENCING MORTALITY IN DIABETIC COMA: A STATISTICAL STUDY. Arch Intern Med (Chic). 1942;70(3):369–378. doi:10.1001/archinte.1942.00200210024002
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