Respiratory health of workers exposed to swine confinement buildings only or to both swine confinement buildings and dairy barns.

Cormier, Yvon; Boulet, Louis‐Philippe; Bédard, Gaétane; Tremblay, Guy M.

doi:10.5271/sjweh.1703

Cited by 58 publications

(34 citation statements)

References 19 publications

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“…Supporting this hypothesis, working inside confinement buildings emerged as a risk factor for chronic bronchitis in the present study, both for nonsmokers and smokers, and the prevalence of this respiratory symptom in nonsmoking animal farmers was related to high indoor dust exposure and working in small workplaces. CORMIER et al [54] also found that the high prevalence of chronic bronchitis in Canadian pig farmers was related to indoor work. In the present study, chronic bronchitis was additionally related to work inside greenhouses in nonsmoking farmers, a finding suggesting that the effect of indoor exposure to air contaminants on respiratory symptoms may not be limited to animal farmers.…”

Section: Discussionmentioning

confidence: 95%

Region-related risk factors for respiratory symptoms in European and Californian farmers

et al. 2003

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The aim of this study was to determine the prevalences and regional risk factors for respiratory symptoms in European and Californian farmers.Farmers participating in the 1993-1997 surveys performed in Europe (n=7,188) and California (n=1,839) were included in this cross-sectional study. Respiratory symptoms and farming characteristics were assessed by questionnaire and risk factors associated with symptoms using logistic regression.The prevalences of rhinitis and asthma were lower in European (12.7% and 2.8%) than in Californian farmers (23.9% and 4.7%), but chronic bronchitis and toxic pneumonitis were more prevalent in Europe (10.7% and 12.2%) than in California (4.4% and 2.7%). Respiratory symptoms were associated with poultry and rabbit farming, flower growing and the cultivation of grain and oil plants. Working in Europe was a statistically significant risk factor for chronic bronchitis and toxic pneumonitis. Chronic bronchitis was related to toxic pneumonitis, work inside confinement buildings and greenhouses.Chronic bronchitis and toxic pneumonitis are highly prevalent among European farmers and are mainly attributable to indoor work.

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Section: Discussionmentioning

confidence: 95%

Region-related risk factors for respiratory symptoms in European and Californian farmers

et al. 2003

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“…Various respiratory symptoms have been identi fied among pig farmers in previous studies. For example, a higher prevalence of airway irritation and bronchitis was found in several studies (8,9,12,14,15,17,19,22,23 ), and sometimes a higher pre valence of asthma (1 I, 16) and symptoms of bron chial hyperreactivity (13) were revealed. In the three groups, the mean base-line FVC and FEVl.o were similar to the European reference values.…”

Section: Discussionmentioning

confidence: 99%

Respiratory symptoms and bronchial reactivity among pig and dairy farmers.

Choudat¹,

Goehen²,

Korobaeff³

et al. 1994

Scand J Work Environ Health

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ratory symptoms and bronchial reactivity among pig and dairy farmers. Scand J Work Environ Health 1994;20:48-54. OBJECTI VES -This study assessed the prevalence of respiratory manifestations among French pig and dairy farmers and determined the relationship between bronchial reactivity and respiratory manifestations. METHODS -The pig farmers included 102 men working more than halftime inside swine confinement buildings. There were 51 male dairy farmers and 81 male referents. The demographic characteristics of the three groups were similar except for more smokers among the referents. Each subject completed a standardized questionnaire. Pulmonary function tests were performed before and after a methacholine challenge (cumulative doses 80, 240, and 560 ug), Airborne dust, ammonia, and carbon dioxide were measured inside 28 swine confinement buildings. RESULTS -The pig farmers were exposed to a total dust level of 2.4 I mg . nr-'. The respirable particle concentration was low. The pig and dairy farmers had a significantly higher prevalence of cough and morning phlegm than the referents. Before the methacholine challenge, the dairy farmers had nonsignificantly lower mean lung function values than the other groups. Among the subjects with no history of asthma, nonspecific bronchial hyperreactivity was significantly higher among the pig and dairy farmers than among the referents. There was a fall in the forced expiratory volume in I s (FEY, ,) that was greater than 10% in 6.7% of the referents, 17.9% of the swine workers, and 35.6% of the~airy farmers. This result was unchanged after adjustment for the initial FEV] o: CONCLUSIONS -The prevalence of respiratory symptoms was significantly higher among the pig' farmers without base-line lung function impairment. However, both the pig and the dairy farmers had increased bronchial reactivity.Key terms: agricultural workers, epidemiology, occupational airborne exposure.Epidemiol ogic studi es have demonst rated an increased ri sk of respiratory dysfunction am ong farmers (1---4) and, especially, am ong workers in swine co nfinement building s (5-24). Th ese studi es iden-

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“…In specific situations, such as mechanical malfunction, gases and especially hydrogen-sulphide can reach very toxic concentrations inside the building and in the worst cases cause death. Although most researchers agree that current gas concentrations have limited or no adverse health effects even with long workdays, some studies have found that these gases were not associated with adverse health effects separately from other airborne exposures (Cormier et al, 1991a, Monso et al, 2000.…”

Section: The Role Of Separate Components In Airborne Exposure From LImentioning

confidence: 99%

“…Most investigators agree that no single component or factor is responsible for the adverse health effects that occur after exposure to the animal farming environment (Cormier et al, 1991a, Monso et al, 2000. Rather it is the exposure to the mixture of gases, dust particles, allergens, microbes and substances of microbial origin that in combination induce the inflammation in the airways and the systemic changes in immune function (Omland, 2002a).…”

Section: The Role Of Separate Components In Airborne Exposure From LImentioning

confidence: 99%

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Abatement control and regulation of emission and ambient concentration of odour and allergens from livestock farming

Arnold¹,

Bleeker²,

Bønløkke³

et al. 2009

TemaNord

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Respiratory health of workers exposed to swine confinement buildings only or to both swine confinement buildings and dairy barns.

Cited by 58 publications

References 19 publications

Region-related risk factors for respiratory symptoms in European and Californian farmers

Region-related risk factors for respiratory symptoms in European and Californian farmers

Respiratory symptoms and bronchial reactivity among pig and dairy farmers.

Abatement control and regulation of emission and ambient concentration of odour and allergens from livestock farming

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