Respiratory symptoms and ventilatory function: a family study.

Holland, Walter W.; Kasap, Halil; Colley, J. R. T.; Cormack, W.

doi:10.1136/jech.23.2.77

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…Factors such as ambient air pollution and low socioeconomic class have been shown to be important in the development of respiratory symptoms and illnesses in other groups of children (Holland et al, 1969b;Colley and Reid, 1970).…”

Section: Resultsmentioning

confidence: 99%

“…The sampling methods have been described (Colley and Holland, 1967;Holland et al, 1969b;Colley et al, 1974). All families living in six wards of the borough of Harrow who had an infant born to them between 1 July 1963 and 30 June 1965 were included in the study population, the only exclusions being families of infants who died within seven days of birth.…”

Section: Study Samplementioning

confidence: 99%

See 1 more Smart Citation

Influence of family factors on the incidence of lower respiratory illness during the first year of life.

Leeder¹,

Corkhill²,

Irwig³

et al. 1976

Journal of Epidemiology & Community Health

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Section: Resultsmentioning

confidence: 99%

Section: Study Samplementioning

confidence: 99%

Influence of family factors on the incidence of lower respiratory illness during the first year of life.

Leeder¹,

Corkhill²,

Irwig³

et al. 1976

Journal of Epidemiology & Community Health

Self Cite

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“…Ce sont par ordre d'im portance; la région de résidence, la classe sociale, la dimension de la famille, et une anamnèse de maladie bronchopulmonaire. Ils en concluent que l'envi ronnement pendant l'enfance peut entraîner des modifications persistantes contribuant à produire plus tard une maladie pulmonaire obstructive, mais ils ne peuvent pas le prouver pour l'instant [37]. a) Tabac.…”

Section: / Facteurs éTiologiques Exogènesunclassified

Une étude épidémiologique de la bronchite chronique à Genève

Rufener-Press¹,

Rey²,

Press³

1973

Respiration

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A survey on chronic bronchitis was performed sample of the active population of Geneva in which 1.681 males and 1.201 females were required to fill out a questionnaire of the Medical Research Council translated into French. Exploratory functions measured were the following: peak flow rate (PFR) with the peak flow meter of Wright; forced expiratory volume in 1 sec (FEV₁); forced, expiratory volume in 3 sec (FEV3), and vital capacity with a pulmonary function indicator of Chemetron. Our sample was representative of industry, business and administration; however, representation of building trades, agriculture and craftsmen was poor. The sample contained a fair proportion of skilled and unskilled workers, technical employees and executives, Chronic bronchitis was defined according to the proposal of the Ciba Guest Symposium 1959. We divided our sample into three groups: a healthy group without any respiratory symptoms, an inbetween group which had symptoms but which did not fit the definition of chronic bronchitis, and a group which had symptoms which fit the definition. A severity scale of 4 degrees was established in order to provide a measure of the severity of respiratory symptoms.

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“…Holland et al found that season may influence symptom prevalence, with a higher prevalence in the winter (Holland et al 1969). The examinations were performed at the same time of the year, so this should not influence any change between the two samplings.…”

Section: Respiratory Symptoms Questionnairementioning

confidence: 99%

Characterisation of occupational exposure to air contaminants in a nitrate fertiliser production plant

et al. 2012

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The aim of this study was to characterise personal exposures to dust, acid vapours, and gases among workers in a Norwegian nitrate fertiliser production plant, as part of an ongoing epidemiological study. In total, 178 inhalable and 179 thoracic aerosol mass fraction samples were collected from randomly chosen workers (N = 141) from three compound fertiliser departments (A, B and C), a calcium nitrate fertiliser production department, nitric acid- and ammonia-production departments, and a shipping department. The overall median inhalable and thoracic aerosol mass concentrations were generally low (1.1 mg m(-3) (min-max: <0.93-45) and 0.21 mg m(-3) (min-max: <0.085-11), respectively). Workers at the compound fertiliser departments B and C had significantly higher inhalable aerosol mass air concentrations compared to the other departments (p < 0.05), except for compound fertiliser department A; however, the difference between the compound fertiliser department C and calcium nitrate department was slightly above the significant level. Workers at the compound fertiliser department A had significantly higher thoracic aerosol mass air concentrations compared to the other departments (p < 0.05), except for compound fertiliser departments B and C. The results indicate that the extrathoracic aerosol fraction of the aerosol compared to the thoracic fraction dominated in most departments. Measurement of the main constituents Ca, K, Mg, and P in the water-soluble and water-insoluble aerosol mass fractions showed that the air concentrations of these elements were low. There is, however, a shift towards more water-soluble species as the production goes from raw material with phosphate rock towards the final product of fertilisers. Overall, the arithmetic mean of water-soluble Ca in the thoracic mass fraction was 51% (min-max: 1-100). A total of 169 personal samples were analysed for HNO(3) vapour and HF. The highest median concentration of HNO(3) (0.63 mg m(-3)) was in the compound fertiliser departments B, and all measurements but four of the HF concentrations were below the LOD of 190 μg m(-3). Exposures to NH(3), CO and NO(2) were measured using direct-reading electrochemical sensors and the time weighted overall averages were all below the LODs of the respective sensors, NH(3) 2 ppm; CO 2 ppm; and NO(2) 0.2 ppm, but some short-term peaks were detected. Even though our results indicate that the workers may experience peak exposure episodes when performing job tasks such as cleaning or maintenance work, the overall air concentrations are well below what is considered to cause known health risks.

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Respiratory symptoms and ventilatory function: a family study.

Cited by 13 publications

References 8 publications

Influence of family factors on the incidence of lower respiratory illness during the first year of life.

Influence of family factors on the incidence of lower respiratory illness during the first year of life.

Une étude épidémiologique de la bronchite chronique à Genève

Characterisation of occupational exposure to air contaminants in a nitrate fertiliser production plant

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