Publications by authors named "Jeffrey Berko"

3 Publications

  • Page 1 of 1

The Stock Performance of American Companies Investing in a Culture of Health.

Am J Health Promot 2019 03 30;33(3):439-447. Epub 2019 Jan 30.

2 IBM® Watson HealthTM, Bethesda, MD, and Cambridge, MA, USA.

Purpose: We investigated the relationship between companies' efforts to build internal (COH-INT) and external cultures of health (COH-EXT) and their stock performance.

Design: We administered 2 surveys, which measure companies' programs, policies, and supports for improving the health of their employees and communities. We then compared the companies' stock performance to the Standard and Poor's (S&P) 500 Index from January 2013 through August 2017.

Setting: United States.

Participants: Representatives from 17 publicly traded companies who completed the COH-INT survey, of whom 14 also completed the COH-EXT.

Measures: Culture of health scores were dichotomized into high versus low for both surveys. Stock price data for all companies were gathered from public sources.

Analysis: We constructed 5 stock portfolios: all 17 companies, high COH-INT, low COH-INT, high COH-EXT, and low COH-EXT companies. We examined total returns for each portfolio compared to the S&P 500.

Results: High COH-INT companies' stock price appreciated by 115% compared to the S&P benchmark (+69%), while low COH-INT companies appreciated only 43%. In contrast, high COH-EXT companies underperformed (+44%) when compared to the S&P 500 (+69%) and low COH-EXT companies (+89%).

Conclusion: This study supports the view that employers' efforts to build an internal culture of health is a sound business strategy. More research is needed, however, to establish whether a link exists between supporting healthy community initiatives and company stock performance.
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http://dx.doi.org/10.1177/0890117118824818DOI Listing
March 2019

Deaths attributed to heat, cold, and other weather events in the United States, 2006-2010.

Natl Health Stat Report 2014 Jul(76):1-15

National Center for Health Statistics.

Objectives: This report examines heat-related mortality, cold-related mortality, and other weather-related mortality during 2006-2010 among subgroups of U.S. residents.

Methods: Weather-related death rates for demographic and area-based subgroups were computed using death certificate information. Adjusted odds ratios for weather-related deaths among subgroups were estimated using logistic regression.

Results And Conclusions: During 2006-2010, about 2,000 U.S. residents died each year from weather-related causes of death. About 31% of these deaths were attributed to exposure to excessive natural heat, heat stroke, sun stroke, or all; 63% were attributed to exposure to excessive natural cold, hypothermia, or both; and the remaining 6% were attributed to floods, storms, or lightning. Weather-related death rates varied by age, race and ethnicity, sex, and characteristics of decedent's county of residence (median income, region, and urbanization level). Adjustment for region and urbanization decreased the risk of heat-related mortality among Hispanic persons and increased the risk of cold-related mortality among non-Hispanic black persons, compared with non-Hispanic white persons. Adjustment also increased the risk of heat-related mortality and attenuated the risk of cold-related mortality for counties in the lower three income quartiles. The differentials in weather-related mortality observed among demographic subgroups during 2006-2010 in the United States were consistent with those observed in previous national studies. This study demonstrated that a better understanding of subpopulations at risk from weather-related mortality can be obtained by considering area-based variables (county median household income, region, and urbanization level) when examining weather-related mortality patterns.
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July 2014

Can false memories spontaneously recover?

Memory 2006 May;14(4):415-23

Department of Psychology, Wesleyan University, Middletown, CT 06549-0408, USA.

Can false memories that were suppressed at one time spontaneously recover at a later time? Fuzzy trace theory and activation-monitoring theory predict that false memories in the Deese, Roediger, and McDermott (DRM) procedure become substantially reduced as list learning progresses because participants employ a memory-editing process. It follows that if the editing process is rendered less effective, false memories should spontaneously recover. We found that after DRM lists were well learned and false recognition to critical words was substantially reduced by multiple study-test trials, those false memories spontaneously recovered when participants were either rushed or delayed on a retest. We attributed the reduction in false recognition over trials to a memory-editing process that suppresses false recognition as participants gradually learn which words were in the lists and which words, though similar, were not. Rushing or delaying the participants on a retest made it more difficult for them to edit their memory, and false memories spontaneously returned.
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http://dx.doi.org/10.1080/09658210500420725DOI Listing
May 2006