Lung Function and Work-Related Exposure in Pig Farmers With Respiratory Symptoms

Radon, Katja; Garz, S; Schottky, A; Koops, F; Hartung, J.; Szadkowski, D; Nowak, Dennis

doi:10.1097/00043764-200008000-00010

Cited by 25 publications

(13 citation statements)

References 14 publications

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“…Allergy histories, positive skin prick test results or Phadiatop did not differ significantly by group, and our results did not indicate that allergic subjects were over-represented in those groups with nasal complaints. The finding of low FEV 1 in swine producers is in line with results reported by other authors [14]. An interesting finding is that eight farmers had nasal polyps.…”

Section: Discussionsupporting

confidence: 92%

Nasal complaints and signs of disease in farmers – a methodological study

Holmström

Thelin

Kolmodin-Hedman

et al. 2008

Acta Oto-Laryngologica

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Nasal blockage complaints were more common among farmers; overall, nasal polyps were more frequent in grain producers. Objective parameters showed more pronounced mucosal swelling in farmers and higher concentrations of ECP in nasal lavage compared with controls. Lung function, olfactory threshold, atopy frequency and allergen-specific IgE to the storage mite Lepidoglyphus destructor did not differ between farmers and controls. Mucosal swelling measured with acoustic rhinometry was more pronounced in subjects with nasal complaints, hypersensitivity, nasal polyps and symptoms from lower airways. There was a correlation between biomarkers in nasal lavage (MPO, albumin and ECP).

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Section: Discussionsupporting

confidence: 92%

Nasal complaints and signs of disease in farmers – a methodological study

Holmström

Thelin

Kolmodin-Hedman

et al. 2008

Acta Oto-Laryngologica

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“…In total, results from 21 studies were included, all except one being part of the search results on personal levels of exposure. 26,95,100,[102][103][104]106,109,110,[112][113][114][118][119][120]123,[126][127][128][129][130] PERSONAL LEVELS OF EXPOSURE Of the 41 identified studies, 16 were on pig farmers, 16,[95][96][97]101,103,106,109,110,113,114,116,117,123,125,129 7 on poultry farmers 98,100,104,107,118,120,127 and 9 on cattle farmers, 90,92,94,99,105,…”

Section: Literature Review Methodsmentioning

confidence: 99%

A comprehensive review of levels and determinants of personal exposure to dust and endotoxin in livestock farming

Basinas

Sigsgaard

Kromhout

et al. 2013

J Expo Sci Environ Epidemiol

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The respiratory health effects of livestock farming have been on debate for more than three decades. Endotoxin-contaminated organic dusts are considered as the most important respiratory hazards within livestock environments. A comprehensive review of the knowledge from studies assessing the exposure status of livestock farmers is still to be published. The present study reviews research published within the last 30 years on personal exposure of livestock farmers to organic dust and endotoxin, focusing on studies on pig, poultry and cattle farmers. Applied measurement methods and reported levels of personal exposure for the total, inhalable and respirable fractions are summarized and discussed, with emphasis on the intensity of exposure and the size and distribution of the reported exposure variability. In addition, available evidence on potential determinants of personal exposure to dust and endotoxin among these farmers are documented and discussed, taking results from exposure determinant studies using stationary sampling approaches into consideration. Research needs are addressed from an epidemiological and industrial hygiene perspective. Published studies have been heterogeneous in design, and applied methodologies and results were frequently inadequately reported. Despite these limitations and the presence of an enormous variability in personal exposure to dust and endotoxin, no clear downward trends in exposure with time were observed, suggesting that working environments within stables remains largely uncontrolled. Exposure control and prevention strategies for livestock farmers are urgently required. These should focus on the development of novel and improved methods of controlling dust and endotoxin exposure within stables based on the currently available knowledge on determinants of exposure.

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“…5,13,14,39 Paradoxically, high levels of endotoxin exposure have been shown to exacerbate respiratory symptoms in adult farmers. 22,40,41 Therefore, the timing and dose of endotoxin exposure seem critical to its association with asthma and atopy.…”

Section: Livestock Exposure and The "Hygiene Hypothesis"mentioning

confidence: 99%

Asthma and Atopy in Rural Children: Is Farming Protective?

Naleway¹

2004

Clinical Medicine & Research

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The prevalence of asthma and other atopic diseases has recently increased, especially in urban and modernized regions of the world. The majority of published prevalence surveys report that asthma and atopy are less common among children living in rural areas. While many exposures differ in rural and urban areas of the world, several recent studies have suggested that agricultural exposures in early childhood may decrease the risk of developing atopic disease. Livestock exposure, in particular, seems to be important, but additional research is needed to pinpoint the underlying mechanisms behind this apparent protective effect of rural and farm living. Additionally, prospective studies are needed to more closely examine the timing of farm exposures in relation to the onset of asthma and atopy, and to determine if the apparent protective effects of farming persist into adulthood.

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Lung Function and Work-Related Exposure in Pig Farmers With Respiratory Symptoms

Cited by 25 publications

References 14 publications

Nasal complaints and signs of disease in farmers – a methodological study

Nasal complaints and signs of disease in farmers – a methodological study

A comprehensive review of levels and determinants of personal exposure to dust and endotoxin in livestock farming

Asthma and Atopy in Rural Children: Is Farming Protective?

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