Shorter People More Likely To Develop Lung Disease - Poverty, The Culprit

by Gopalan on  January 10, 2010 at 10:20 AM Respiratory Disease News
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 Shorter People More Likely To Develop Lung Disease - Poverty, The Culprit
Shorter people more are more likely to develop lung disease, says a new study. And they could hail from poorer backgrounds.

University of Nottingham researchers say those with Chronic Obstructive Pulmonary Disease (COPD) were 1.12cm shorter on average.

In the Journal of Epidemiology and Community Health, they write this lack of height may be a "marker" that people have come from a poorer background.

A number of historical studies have suggested that early life deprivation increases the risk of developing COPD in adult life, but whether this is still true now that living conditions have improved is not known, they point out.

So they set out to quantify the current association between adult height (a maker of socioeconomic status in early life) and COPD, and to determine how this varies by age.

They examined data on 1,204,110 people (aged over 35yrs old) from The Health Improvement Network - a general practice database and concluded, "The risk of developing COPD is still strongly associated with adult height. This association is strongest in the youngest age category suggesting that early life experience will remain an important risk factor for COPD for some time to come and possibly that COPD related to early life deprivation is more severe and tends to present at a younger age."

The smallest height difference was in the over 90s where the average difference was only 0.51cm.

They say this could be because many of the older generation who suffered from the disease actually died from it in recent years.

People with COPD have permanent scarring to the lung tissue caused mostly be smoking.

It is estimated that 3.7 million people in the UK have the disease, but only 900,000 are currently diagnosed.

The researchers think that people who came from poorer backgrounds were more likely to have had mothers who smoked, had poor nutrition during their early years affecting general growth and lung development, and were more likely to live in smoking households and smoke themselves.

Richard Hubbard, professor of respiratory epidemiology at the University of Nottingham, who co-authored the study said: "There's a double whammy associated with deprivation.

"Poorer nutrition in the 'womb' and when growing up as a child can affect general growth and lung development.

"This is combined with an increased likelihood to live with families and peers who smoke - influencing the chance of taking up and sticking with the habit.

"We know that smoking is the principal cause of COPD and all of these factors combined could increase the risk even more."

Professor Mike Morgan, chairman of the British Thoracic Society, said: "We need to make it easier for people from disadvantaged backgrounds to make positive life choices and improvements to their health - whether it be eating well or stopping smoking.

"GPs and primary care professionals could also look out for height alongside smoking status and other chronic lung disease symptoms, to ensure that the disease is caught early."

A Department of Health spokesman said several factors which may affect growth, such as poor nutrition, are also risks for COPD.

"As part of the forthcoming national strategy on COPD we will be investigating how we can best identify these risk factors and take action to either prevent people developing respiratory conditions or halt the progression of the disease once diagnosed."

Source: Medindia

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