1990
DOI: 10.1136/bmj.300.6735.1306
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Abstract: of volatile N-nitrosamines in man aftcr ingestion of cookcd hacon and spinach. Nature 1977;265:753-5 Results-Within age groups trends in successive annual cohorts showed an increasing prevalence of asthma for each annual birth cohort (boys, 6-9%, p<0001; girls, 12-8%, p Show more

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Cited by 539 publications
(249 citation statements)
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“…BRABÄCK et al [15], in a comparison of atopic sensitization and respiratory symptoms among Swedish and Polish school children, reported that children living in urban Sweden, as compared to urban Poland, were more frequently diagnosed as being asthmatic by a doctor, and had higher prevalences of positive skin-prick test reactions against mugwort, timothy, birch and cat. Several studies have indicated a rising trend in atopic diseases and asthma over time both in children [16][17][18][19][20][21] and adolescents [2,22,23]. Most authors suggest that this is not simply due to improved diagnostic trends.…”
Section: Discussionmentioning
confidence: 99%
“…BRABÄCK et al [15], in a comparison of atopic sensitization and respiratory symptoms among Swedish and Polish school children, reported that children living in urban Sweden, as compared to urban Poland, were more frequently diagnosed as being asthmatic by a doctor, and had higher prevalences of positive skin-prick test reactions against mugwort, timothy, birch and cat. Several studies have indicated a rising trend in atopic diseases and asthma over time both in children [16][17][18][19][20][21] and adolescents [2,22,23]. Most authors suggest that this is not simply due to improved diagnostic trends.…”
Section: Discussionmentioning
confidence: 99%
“…8 Apesar dos avanços na compreensĂŁo da sua fisiopatologia e da crescente oferta de medicaçÔes, diversos estudos vĂȘm demonstrando aumento da prevalĂȘncia, da morbidade e da mortalidade por asma em vĂĄrios paĂ­ses. 2,3 A falta de manejo adequado tem sido descrita como uma das principais causas da demanda em salas de emergĂȘncia por crianças asmĂĄticas. [4][5][6] Em estudo realizado na PensilvĂąnia (USA), em 1994, foi verificado baixo uso de drogas antiinflamatĂłrias para o controle da asma.…”
Section: Introductionunclassified
“…There are a number of suggestions in the literature and editorials that the prevalence of asthma, rhinitis, and "allergies'' has increased in recent years (31)(32)(33)(34), but there are few data in the literature to support this commonly held belief. Our own studies from Australia suggest that the prevalence of allergy is not increasing and remains at about 40-50% of the population (depending on the age group and the size of the wheal considered positive) (4,30).…”
mentioning
confidence: 99%