In comparing the deaths of one hospital with those of another, any statistics are justly considered absolutely valueless which do not give the ages, the sexes and the diseases of all the cases.
Florence Nightingale (1820 - 1910)
![](https://causeweb.org/cause/sites/default/files/styles/large/public/resources/fun/authors/Florence_Nightingale.jpg?itok=l7gxXtV8)
In comparing the deaths of one hospital with those of another, any statistics are justly considered absolutely valueless which do not give the ages, the sexes and the diseases of all the cases.
Florence Nightingale (1820 - 1910)