The Incidence of Farmer's Lung in Caithness

Boyd, D. H. A.

doi:10.1177/003693307101600506

Cited by 20 publications

(7 citation statements)

References 2 publications

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“…The numbers of healthy farmers with precipitins to antigens of M. faeni have been reported as none (Boyd, 1971), 15-21 % and 23 % (Morgan et al, 1973). In the present study, 30 % of healthy individuals reacted with FLH in double diffusion tests and only 55% of those with disease were also positive.…”

Section: Discussionsupporting

confidence: 41%

Farmer's lung in a group of Scottish dairy farms

Wardrop

Blyth

Grant

1977

Occupational and Environmental Medicine

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Section: Discussionsupporting

confidence: 41%

Farmer's lung in a group of Scottish dairy farms

Wardrop

Blyth

Grant

1977

Occupational and Environmental Medicine

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“…'3527 There are four possible hypotheses: (1) a protective effect of cigarette smoke against farmer's lung; (2) a tendency for subjects with respiratory intolerance to plant dusts not to smoke; (3) a tendency for subjects with bronchial manifestations linked to smoking to expose themselves less to plant dusts; (4) previous tobacco related illness, rendering certain subjects ineligible or nonresponders.…”

Section: Resultsmentioning

confidence: 99%

Epidemiological study of farmer's lung in five districts of the French Doubs province.

Depierre

Dalphin

Pernet

et al. 1988

Thorax

102

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21'5%, 9-5%, and 9-2% at the time of the study. Farmer's lung was more common in the middle tablelands than in the plain or mountain areas (p < 0 01). The difference in prevalence of farmer's lung between the Mouthe mountain and Levier middle tableland districts (25-2/1000 and 60 8/1000) raises the possibility that cold may protect against the disease. Farmer's lung was more frequent in men and in the age group 51-55 years. Among possible occupational factors, only regular work connected with feeding animals was associated with a significant risk (odds ratio 2-55 with a 95% confidence interval of 1 09-5-93). The frequency of chronic bronchitis in the population studied was 14-8%. There was a close link between farmer's lung and chronic bronchitis, 50-6% of patients with probable farmer's lung having it but only 8-6% of patients without farmer's lung (p < 0 001). In patients with probable farmer's lung chronic bronchitis was independent of smoking and age. There were fewer smokers in the probable farmer's lung than in the non-farmer's lung group (p < 0 05).

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“…Estimates of prevalence made in this way cannot be accurate, because underreporting of cases, as the authors themselves have admitted, is unavoidable. Boyd (1971) recorded a prevalence of 110 per 100,000 of the farming population in the County of Caithness, but this figure was based on the number of patients referred to hospital and must therefore have included only those with more severe forms of the disease.…”

Section: Discussionmentioning

confidence: 99%