Age-related Prevalence of Allergic Diseases in Tokyo Schoolchildren

Futamura, Masaki; Ohya, Yukihiro; Akashi, Masanori; Adachi, Yuichi; Odajima, Hiroshi; Akiyama, Kazuo; Akasawa, Akira

doi:10.2332/allergolint.10-oa-0293

Cited by 44 publications

(33 citation statements)

References 14 publications

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“…Of note, in the present study, the associations between sex and allergic symptoms for wheeze and eczema differed. In line with previous studies (Futamura et al 2011), boys had high ORs for current wheeze. On the other hand, the OR of 0.88 (95% confidence interval [CI]: 0.78-1.00) for current eczema was marginally significantly low in boys; in other words, current eczema was associated with girls.…”

Section: Discussionsupporting

confidence: 92%

“…The relationship observed between prevalence of allergic symptoms and both sex and age was consistent with previous findings (Williams et al 1999;Futamura et al 2011), i.e., allergic symptoms were more frequent in younger students. Of note, in the present study, the associations between sex and allergic symptoms for wheeze and eczema differed.…”

Section: Discussionsupporting

confidence: 91%

“…Williams et al (1999) reported that the prevalence of eczema in girls was high; however, inconsistencies have been reported in the prevalence of eczema according to sex. However, Futamura et al (2011) reported finding the opposite result, that the prevalence of eczema was similar in both sexes (Futamura et al 2011).…”

Section: Discussionmentioning

confidence: 89%

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Eczema and Asthma Symptoms among Schoolchildren in Coastal and Inland Areas after the 2011 Great East Japan Earthquake: The ToMMo Child Health Study

Miyashita

Kikuya

Yamanaka

et al. 2015

Tohoku J. Exp. Med.

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After the Great East Japan Earthquake of 2011, there has been a concern about health problems among children. Therefore, we investigated the prevalence of wheeze and eczema symptoms and associated factors among children in areas primarily affected by the disaster. From 2012 to 2014, we distributed the parent-administered questionnaire to 25,198 children in all 233 public schools in the 13 municipalities of Miyagi Prefecture in northeast Japan. A total of 7,155 responses (mean age 10.5 ± 2.2 years) were received (response rate: 28.4%). The prevalence of allergic symptoms according to the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire in 2nd, 4th, 6th, and 8th graders was 12.4%, 9.9%, 9.3%, and 5.6% for wheeze, and 20.1%, 18.0%, 14.0%, and 12.4% for eczema. In multivariate logistic analysis, younger age, history of hospitalization, and difficulties in children's daily lives as assessed by the Strengths and Difficulties Questionnaire (SDQ), were significantly and consistently associated with both allergic symptoms (both P < 0.05). Living in a coastal municipality was also associated with eczema symptoms (P = 0.0278). The prevalence of eczema symptoms in the 2nd (20.1%) and 8th (12.4%) grades was significantly higher than previously reported in Japan. Living in a coastal municipality was independently associated with eczema symptoms, and psychometric properties were also closely linked to allergic symptoms. These findings are clinically important for understanding the risks of allergic disorders after natural disasters.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

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Eczema and Asthma Symptoms among Schoolchildren in Coastal and Inland Areas after the 2011 Great East Japan Earthquake: The ToMMo Child Health Study

Miyashita

Kikuya

Yamanaka

et al. 2015

Tohoku J. Exp. Med.

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“…The prevalence of asthma symptoms found in this study was higher than the study of preschool children conducted in the Ogasawara Islands (asthma, 12.2%) [50]. The prevalence of three allergic disease symptoms found in this study was lower than in the study of 6-year-old school children conducted in Setagaya (asthma, allergic rhinoconjunctivitis, eczema; 18.2%, 19.7%, 19.6%) [51]. It is well known that asthma is more prevalent in urbanized areas as air pollution is one of the environmental factors that can exacerbate asthma.…”

Section: Hori Et Al Healthcontrasting

confidence: 54%

“…Its prevalence peaked at 10 years old [51]. Therefore, the low prevalence of allergic rhinoconjunctivitis in this study is plausible.…”

Section: Hori Et Al Healthmentioning

confidence: 89%

The Association of Autism Spectrum Disorders and Symptoms of Asthma, Allergic Rhinoconjunctivitis and Eczema among Japanese Children Aged 3 - 6 Years

Hori¹,

Tsujiguchi²,

Kambayashi³

et al. 2017

Health

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There is insufficient epidemiological evidence on the relationship between autism spectrum disorder (ASD) and allergic diseases. We performed a cross-sectional survey to elucidate the associations between them using validated screening tools. The participants were children aged 3 -6 years attending kindergarten or nursery school in Shika Town, Japan (n = 417; valid response rate = 80.4%). Autism spectrum features were scored on the Social Communication Questionnaire (SCQ). Allergic symptoms (asthma, allergic rhinoconjunctivitis, and eczema) were determined according to the criteria of the International Study of Asthma and Allergies in Childhood. A total of 15 children (4.5%) had an SCQ score of 11 points or higher. The prevalence of symptoms was 14.7% for asthma, and 5.3% for allergic rhinoconjunctivitis, and 11.4% for eczema. Logistic regression indicated that symptoms of eczema were significantly associated with SCQ scores of 11 points or higher [odds ratio (OR), 4.38; 95% confidence interval (CI), 1.41 -13.59]. The association persisted after adjustment for age, sex, and BMI (OR, 3.84; 95% CI, 1.20 -12.24). Moreover, asthmatic symptoms were significantly associated with male sex (OR, 2.09; 95% CI, 1.12 -3.92) and overweight status (OR, 2.45; 95% CI, 1. 03 -5.83). This suggests that higher SCQ scores, which imply more autism spectrum features, are associated with higher prevalence of eczema symptoms. While no causal relationships can be made, ASD might be associated with How to cite this paper:

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Hygiene practices: Are they protective factors for eczema symptoms?

Ferrandiz-Mont¹,

Wahyuniati

Chen³

et al. 2018

Immunity Inflam & Disease

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IntroductionExact etiology and proper treatment of eczema are still unknown. The hygiene hypothesis and epidermal barrier dysfunction hypothesis attempted to give some plausible explanations for these issues but they still remain unclear. The identification of factors, including hygiene practices, related to eczema symptoms (ES) could shed some light on these matters. Therefore, this study aimed to determine risk factors related to ES and the ES prevalence in two disparate areas in terms of urbanization in Aceh, Indonesia.MethodsA cross‐sectional study with convenience sampling was conducted among schoolchildren living in urban and rural Aceh. Data on ES, socio‐demographic characteristics, environmental factors, partial ablution and other hygiene related factors were collected by parental questionnaires. In addition, children's anthropometric measurements were also collected.ResultsThe prevalence of current ES in the study population was 21%. When stratifying by residency, the prevalence of ES in urban and rural area was 20.93% versus 21.05%. Partial ablution was independently associated with a reduced risk of ES (OR = 0.36; 95% CI 0.13–0.96). Important risk factors for ES were paternal history of allergic disease (OR = 4.09%; 95% CI 1.51–11.11) and belonging to the older group of schoolchildren (10–13 years old) (OR = 2.57; 95% CI 1.03–6.40).ConclusionsThere were no significant differences in the prevalence of ES between urban and rural settings, and partial ablution had a protective effect on ES. These findings support the epidermal barrier dysfunction hypothesis as a possible pathway of eczema.

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Age-related Prevalence of Allergic Diseases in Tokyo Schoolchildren

Abstract: The prevalence of asthma and atopic dermatitis was higher in younger schoolchildren. Tokyo schoolchildren appear to have extremely high prevalence rates of seasonal allergic rhinoconjunctivitis.

Cited by 44 publications

References 14 publications

Eczema and Asthma Symptoms among Schoolchildren in Coastal and Inland Areas after the 2011 Great East Japan Earthquake: The ToMMo Child Health Study

Eczema and Asthma Symptoms among Schoolchildren in Coastal and Inland Areas after the 2011 Great East Japan Earthquake: The ToMMo Child Health Study

The Association of Autism Spectrum Disorders and Symptoms of Asthma, Allergic Rhinoconjunctivitis and Eczema among Japanese Children Aged 3 - 6 Years

Hygiene practices: Are they protective factors for eczema symptoms?

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