Wood Smoke Increases the Risk of Legg-Calvé-Perthes Disease

Research studies on wood smoke and other air pollution.

Wood Smoke Increases the Risk of Legg-Calvé-Perthes Disease

Postby Wilberforce » Wed Nov 23, 2011 6:33 pm

Clin Orthop Relat Res. 2011 Nov 17. [Epub ahead of print]
Environmental Tobacco and Wood Smoke Increase the Risk of Legg-Calvé-Perthes Disease.
Daniel AB, Shah H, Kamath A, Guddettu V, Joseph B.
Source
Department of Community Medicine, Kasturba Medical College, Manipal, Karnataka State, India.
http://www.ncbi.nlm.nih.gov/pubmed/22090357

Abstract
BACKGROUND:

The etiology of Legg-Calvé-Perthes disease (LCPD) remains unknown. A few studies have suggested passive smoke inhalation may be a risk factor, although the association is not confirmed and a causal relationship has not been established.
QUESTIONS/PURPOSES:

We therefore undertook this study to confirm an association between environmental tobacco smoke, firewood smoke, and socioeconomic status and the risk of LCPD.
METHODS:

We prospectively recruited 128 children with LCPD and 384 children attending the hospital for other orthopaedic complaints. The control subjects were frequency-matched with the cases by age and gender. Conditional logistic regression was used to assess the association between the exposures and risk of LCPD.
RESULTS:

The main risk factors for LCPD were indoor use of a wood stove (adjusted odds ratio [OR], 2.56) and having a family member who smoked indoors (adjusted OR, 2.07). Children from the middle socioeconomic group appeared to be at a greater risk of developing LCPD (adjusted OR, 3.60).
CONCLUSIONS:

This study provides further evidence that environmental tobacco smoke is associated with an increased risk of LCPD. Exposure to wood smoke also appears to be a risk factor. However, it remains unclear why there are profound differences in the incidence of the disease between regions when the prevalence of smoking is comparable and why bilateral involvement and familial disease are infrequent.
LEVEL OF EVIDENCE:

Level III, case-control study. See the Guidelines for Authors for a complete description of levels of evidence.

PMID:
22090357
[PubMed - as supplied by publisher]
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis!
Does your child have the flu? Chances are they have been exposed to ambient smoke!
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