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Ambulatory blood pressure studies are needed to assess associations between blood pressure and work stressors
  1. Paul Landsbergis1,
  2. Grace Sembajwe2,
  3. Marnie Dobson3,
  4. Peter Schnall3,
  5. Jian Li4
  1. 1Environmental and Occupational Health Sciences, SUNY Downstate Medical Center School of Public Health, Brooklyn, New York, USA
  2. 2Center for Global Health Equity, Indiana University, Bloomington, Indiana, USA
  3. 3University of California Irvine, Irvine, California, USA
  4. 4Department of Environmental Health Sciences and Epidemiology, Fielding School of Public Health, School of Nursing, University of California Los Angeles, Los Angeles, California, USA
  1. Correspondence to Dr Paul Landsbergis, Environmental and Occupational Health Sciences, SUNY Downstate Medical Center School of Public Health, Brooklyn, New York, USA; paul.landsbergis{at}

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Ahn et al1 conducted a meta-analysis that was well designed with one major exception—reliance on studies of casual clinic or office blood pressure (BP). Only 2 of the 19 papers in the meta-analysis (papers by Trudel and by Gilbert-Ouimet in Ahn et al1) used the more reliable and valid method of ambulatory BP (ABP) monitoring2 3). Those two studies found significant associations between long work hours and BP or hypertension.

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  • Contributors PL drafted the letter to the editor after discussion with the coauthors. The coauthors reviewed the draft, edited the letter and approved the letter.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests JL is the PI of a National Institute for Occupational Safety and Health (NIOSH), CDC, funded research grant on long working hours and cardiovascular disease mortality. GS has received honoraria from NIOSH for grant reviews. PL (as a consultant) and MD (as Associate Director) receive consulting fees from the Center for Social Epidemiology, Marina Del Rey, California, USA, which conducts public education on working conditions (particularly on work organisation) and employee health. PS is Director, Center for Social Epidemiology. PL has also received consulting fees from the American Federation of Teachers for the development of educational materials for union members on work organisation and health.

  • Provenance and peer review Not commissioned; internally peer reviewed.