-The MDRD equation does not require weight or height variables. From a serum creatinine measurement, it generates a GFR result normalized to a standard body surface area (1.73 m[2]) using sex, age, and race. Unlike the Cockcroft-Gault equation, height and weight, which are often not available in the laboratory information system, are not required.
Franco-Prussian War and Unification. With Austria neutralized, the final obstacle to Prussia's unification of Germany was France. France still controlled territory on the border of the new, Prussian-dominated German Confederation, which Prussia considered German.
The short answer is 1871, the date of the first German unification. The area known as Germany has been around since the Roman Empire. It has existed in many forms since then.