Posts Tagged ‘Health’

Cold House Epidemiology & Psychology

October 2, 2011

Back in May, a group called the Marmot Review Team, in conjunction with Friends of the Earth, published a paper titled The Health Impacts of Cold Homes and Fuel Poverty.  An associated editorial was also published in the British Medical Journal.

The bottom-line conclusions of the Marmot paper, which focused primarily on Britain, are that living in cold housing is harmful, that the harm falls disproportionately on the economically disadvantaged, and that fairness demands that society provide more warmth to those in “fuel poverty”.

As you might expect, my feelings about this report are mixed.  On the positive side, I strongly support the authors’ sense of social justice, and of course agree that living in cold housing is potentially hazardous for elderly, disabled, or otherwise physically compromised people.

I have skepticism, however, about many of the inferences drawn in the paper, which are based primarily on epidemiologic correlations, rather than proven cause-and-effect.  For example, the paper notes that there is an increase in deaths over the winter months, and goes on to state: “Cold weather, and in particular cold homes, is believed to be a main factor in causing the winter increase of respiratory and circulatory diseases”.  The one citation for this statement leads to another policy paper by the same group, which, by my reading, actually provides no data whatsoever to support the assertion that cold weather (rather than, say, the increased indoor contact, lower exposer to fresh air,  and lower indoor humidities common in winter) cause these diseases– let alone any evidence for the “belief” that cold homes are to blame.

Indeed, I cannot picture any way that scientific conclusions on this topic could be drawn from epidemiology alone.  Why?  Because (more…)