School of public health

School Notes: School of Public Health
September/October 2025

Megan L. Ranney | https://ysph.yale.edu/

Researcher named health policy chair

Chima D. Ndumele has been appointed chair of the Department of Health Policy and Management, effective July 1, 2025. He also was recently promoted to professor of public health (health policy).

Since joining YSPH in 2013, Ndumele has distinguished himself through an innovative research agenda that advances smart government program reform. He is a nationally recognized health policy researcher who focuses on improving the outcomes of low-income populations and the effectiveness of the government programs that serve them. He is particularly known for his research examining how policy changes impact Medicaid and has received multiple awards for this work.

At YSPH, Ndumele coleads the SCALE research group with his health policy colleague Jacob Wallace. He has served as faculty leader on the YSPH Committee on Academic and Professional Integrity  for the past six years. 

Life expectancy varies widely across the US

A sweeping new study by researchers at the Yale School of Public Health found striking disparities in life expectancy across US states over the past century. Analyzing more than 179 million deaths between 1969 and 2020, the study found that some states saw dramatic gains in life expectancy, while others, particularly in the South, experienced little or no improvement over an entire century.

“For females born in some Southern states, life expectancy increased by less than three years from 1900 to 2000,” said the study’s lead author, Theodore R. Holford ’72PbhSp, ’73PhD. “That’s a staggering contrast when you consider that in states like New York and California, life expectancy rose by more than 20 years over the same period.” States in the Northeast and West, along with the District of Columbia, recorded the greatest gains while states like Mississippi, Alabama, and Kentucky saw minimal gains.   

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