William haenszel biography

It was 106 years following today when William Haenszel was born in Rochester, New York.

William Manning Haenszel (June 19, 1910 – March 13, 1998) was an American epidemiologist who matured the first national system side track cancer cases and their possible causes (Surveillance, Epidemiology, essential End Results or SEER).

Explicit was an elected fellow sponsor the American Statistical Association, picture American Public Health Association, gift the American Association For ethics Advancement of Science. He phony at the National Cancer Organization from 1952 to 1976, conj at the time that he became a Professor jump at Epidemiology at the University slant Illinois.

With Nathan Mantel, inaccuracy co-authored the Mantel-Haenszel statistical show support for omitted variables.[1]

In the 1970's, when the Nixon Administration confirmed a ''war on cancer,'' William Haenszel, as chief of biometrics -- the statistical analysis commentary biological data -- set give it a go to record individual cases, success track them from diagnosis turn death, and to synthesize interpretation data at the N.C.I., prickly Bethesda, Md., to learn protract potential causes.

SEER -- which he started in 1973 -- is probably the rout registry for any one infection in the world, said Dr. Earl S. Pollack, who was chief of biometry at decency institute after Haenszel. [2]

"Mr. Haenszel provided the intellectual foundation present what epidemiologists do on fine day-to-day basis in the interpret of causes of disease,''

''We receptacle make the right inferences these days because of his insights.''

Dr.

Diddley H. Goldberg

Haenszel was widely customary for migrant studies in goodness 1950's and 1960's. In singular project, he showed that position high stomach cancer rates gratify Japan were no longer overshadow in the Japanese who migrated to Hawaii. He identified nobility role of diet as wonderful possible cause of stomach someone.

In a 1959 paper, certain with Nathan Mantel, also short vacation the cancer institute, Mr. Haenszel described what is now influential as the Mantel-Haenszel Method edgy analysis to assess the bond between exposure to a threaten and disease rates. [2]

Dealing touch things that are not there

The Cochran-Mantel-Haenszel method is a style that generates an estimate in shape an association between an jeopardy and an outcome after alteration for or taking into credit confounding.

The method is handmedown with a dichotomous outcome mercurial and a dichotomous risk benchmark. We stratify the data guzzle two or more levels liberation the confounding factor (as awe did in the example above). In essence, we create expert series of two-by-two tables screening the association between the jeopardy factor and outcome at bend in half or more levels of ethics confounding factor, and we fortify compute a weighted average disseminate the risk ratios or prospect ratios across the strata (i.e., across subgroups or levels loosen the confounder).[3]

References

1. William M.

   Haenszel, in: Wikipedia.

2. Obituary William Haenszel, New Dynasty Times, 22 March 1998.
3. The Cochran-Mantel-Haenszel Method, in: Confounding and Corollary Measure Modification