[Researches on cholesterolemia "normal values" (author's transl]. / Ricerche sui "valori normali" della colesterolemia

The AA. have carried out a statistical analysis regarding the frequency of distribution of two series of laboratory data relative to blood cholesterol. The data were obtained by the "direct" method from two populations; healthy blood donors and out-patients of an INAM laboratory. The two distributions resulted to be heterogeneous and it was possible to identify three elementary Gaussian components, one of which indicates normal subjects (values between 140 and 240 mg%). The other two components may be tentatively defined (taking into account the position of the three components) by separating three distinct value levels: less than 210 mg% (normal values); 210-270 mg% (pre-disease); larger than 270 mg% (pathological values).