PubMed · 661089
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V A Komarov. 1978. [Ways to decrease the temporary loss of work capacity in appendicitis].. https://pubmed.ncbi.nlm.nih.gov/661089/
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To determine the acute effects of ozone exposure, the authors conducted a short follow-up study of respiratory illness in a population of 111 preschool children frequently exposed to ozone levels that regularly exceed 0.120 parts per million (ppm). The children attended a private kindergarten in the southwestern part of Mexico City. Parents completed a questionnaire on demographic data, medical history, and potential sources of indoor air pollution. To determine the relation of ozone and respiratory-related school absenteeism, the authors used a logistic regression model for longitudinal data. During the 3-month follow-up, 50% of the children had at least one respiratory-related absenteeism period, and 11.7% had two or more. Children exposed for 2 consecutive days to high ozone levels (> or = 0.13 ppm) had a 20% increment in the risk of respiratory illness. For children exposed for 2 consecutive days to a high ozone level and the previous day to low temperature (< or = 5.1 degrees C), the risk reached 40% (odds ratio = 1.44, 95% confidence interval 1.37-1.52). This study suggests that ozone exposure might be positively associated with the risk of respiratory illness in children and that it may have an interactive effect with low temperature exposure.
In the period February 1986-January 1988 a questionnaire study was carried out among 455 men aged 39-55 years working for the Netherlands Post Office to determine whether a correlation exists between job appreciation and absenteeism. Job appreciation was estimated by means of seven questions concerning: pleasure at work, fatigue after work, job satisfaction, mental stress due to the work, tension in contact with colleagues, tension in contacts with superiors and the physical exertion of working. Answers were scored on a 7-point scale. It was found that a particular score area exists that is correlated with significantly more absenteeism. The results apply to groups, not to individuals.
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