Careers in Statistics. The Role of a Biostatistician Presentation at Central College Pella, Iowa. What comes to mind when you hear the word “statistics”?. Sports statistics? Vital health statistics? Just numbers?. Leading causes of death in the U.S.
The Role of a Biostatistician
Presentation at Central College
Rate Per 100,000
Colon & rectum
Colon & rectum
Per capita cigarette consumption
Male lung cancer death rate
Female lung cancer death rate
50 to 55%
More than 55%
State did not participate in surveyTrends in Overweight* Prevalence (%), Adults 18 and Older, US, 1992-2002
*Body mass index of 25.0 kg/m2or greater
Source: Behavioral Risk Factor Surveillance System, CD-ROM (1984-1995, 1998) and Public Use Data Tape (2002), National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, 1997, 2000, 2003.
Aneurysm Surgery Trial
Michael Todd MD, Bradley Hindman MD,
William Clarke PhD, James Torner PhD
University of Iowa
and the IHAST2 Investigators.
Supported by NIH RO1 NS38554
Hindman, Todd, et al. Neurosurgery. 1999 Jan;44(1):23-32; discussion 32-3.
Outcome = Glasgow Outcome Score at Three Months
No - there is reasonable doubt.
(1) These differences, given this sample size, could have reasonably occurred by chance .
(2) It would need a randomized clinical trial of at least 900 patients to assure that we could detect a 10% improvement (from 65% to 75%) in the Glasgow outcome score at three months with 90% power.
The previous 71%-57% difference has now shrunk to a 66%-63% difference
Now, is it beyond reasonable doubt that hypothermia is working?
Beyond reasonable doubt, it simply does not work as believed.
* Many other outcomes were also tested. All consistently showed no benefit.
(small area estimation)
Genetics, Clinical Trials,
- Statistician 60,000 83,000
- Male Statistician 56,500 83,000
- Female Statistician 62,000 83,000
- Assistant Professor (4 year college) 53,000
- Assistant Professor (Research) 63,000
- Pharmaceutical statistician 73,000 83,000
As you can tell, people work on various different projects. The following are brief excerpts from some recent projects.
A shared-use research facility operated by The University of Iowa, The NADS was created to conduct research which will help save lives, reduce the costs of vehicle crashes, and lead to better and safer vehicles, roadways, and drivers.
While normal hearing has increased significantly, implants still do not reproduce a high quality of music.
Is it beneficial to have two cochlear implants for those who are profoundly deaf?
Mental Illness Group
Mental Retardation Group
Cancer Crude Rates
10,000 - 20,000
Rate Per 100,000 Population
State of Iowa
Tumor growth curve estimates from a mixed linear models analysis.
Group comparisons indicate differences between specific groups at the 5% level of significance.
Radon concentrations measured in the basements of homes in Iowa.
class of 1997