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American Journal of Epidemiology Vol. 154, No. 10 : 974-975
Copyright © 2001 by The Johns Hopkins University School of Hygiene and Public Health

LETTERS TO THE EDITOR

RE: "ASSESSMENT OF DEATHS ATTRIBUTABLE TO AIR POLLUTION: SHOULD WE USE RISK ESTIMATES BASED ON TIME SERIES OR ON COHORT STUDIES?"

Marco Martuzzi

1 World Health Organization European Centre for Environment and Health Via F. Crispi 10 00187 Rome, Italy

Künzli et al. (1Go) developed a useful framework for understanding how air pollution affects mortality. They considered four cases of a person's life experience, labeled A through D, giving the combinations of suffering or not suffering from long- and short-term air pollution health effects. This formulation, albeit useful, might be somewhat oversimplistic. While it is true that there are four relevant combinations of exposure (i.e., both long- and short-term (A), long-term only (B), short-term only (C), and none (D)), there might be more than four relevant patterns of a person's lifetime experience.

An episode of acute air pollution exposure can trigger death only among those persons whose frailty is high; even under this restrictive, uncertain assumption, this high-frailty group includes people whose death is not far off anyway . . . [Full Text of this Article]

REFERENCES

N. Künzli, R. Kaiser and S. Medina

Institute of Social and Preventive Medicine University of Basel Basel, Switzerland
Environmental Health Department National Institute for Public Health Surveillance Saint-Maurice, France


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Home page
 Eur Respir JHome page
M. Martuzzi, M. Krzyzanowski, and R. Bertollini
Health impact assessment of air pollution: providing further evidence for public health action
Eur. Respir. J., May 1, 2003; 21(40_suppl): 86S - 91s.
[Abstract] [Full Text] [PDF]

Home page
 Am J EpidemiolHome page
M. Martuzzi, N. Kunzli, R. Kaiser, and S. Medina
RE: "ASSESSMENT OF DEATHS ATTRIBUTABLE TO AIR POLLUTION: SHOULD WE USE RISK ESTIMATES BASED ON TIME SERIES OR ON COHORT STUDIES?"
Am. J. Epidemiol., November 15, 2001; 154(10): 974 - 975.
[Full Text] [PDF]