A rural environment does not protect against asthma or other allergic diseases amongst Mexican children

Bedolla-Barajas, Martín; Ramírez-Cervantes, F. Javier; Morales-Romero, Jaime; Pérez-Molina, J. Jesús; Meza-López, Carlos; Delgado-Figueroa, Netzahualpilli

doi:10.1016/j.aller.2017.01.010

Cited by 17 publications

(12 citation statements)

References 25 publications

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“…; "3" demonstrated that these three risk factors were all occurred growing cities such as Shanghai [3]. Allergic diseases was usually higher prevalent in urban area than in rural areas within a geographical region [26], though there existing some inconsistent results [27]. Urbanization is accompanied by a modern style of life, electronic screen exposure is more frequent, sedentary time is increasing while sleeping time is decreasing [11], and it has been proved that pregnant women spend at least half their time on sedentary behaviors [28].…”

Section: Discussionmentioning

confidence: 99%

Effect of maternal sleep, physical activity and screen time during pregnancy on the risk of childhood respiratory allergies: a sex-specific study

et al. 2020

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Background: Early life exposure in the uterus had a long-term effect on children's health. As the prevalence of allergies is increasing with a remarkable sex difference, very few studies have traced back to their early origins. We sought to investigate if maternal behavioral exposure, herein sleep, physical activity, and screen time during pregnancy is associated with childhood respiratory allergies. The sex difference would be examined. Methods: Six thousand two hundred thirty-six mother-child pairs from Shanghai Children Allergy Study (SCAS) were enrolled, The International Study of Asthma and Allergies in Childhood questionnaire was adopted to evaluate respiratory allergic diseases. Results: 14.6, 16.2, and 21.0% of children had asthma, wheeze, and allergic rhinitis, respectively. Maternal short sleep duration, lack of physical activity, and too much screen exposure during pregnancy could increase the risk of childhood respiratory allergies, however, the significance was found only in males. Moreover, a dose-response trend was clearly shown, any two of the three combined could increase the risk (OR,1.921; 95% CI,1.217-3.033), and the coexistence of all three further amplified the risk (OR,2.412; 95% CI,1.489-3.906). The findings can be verified in allergen test subgroup and each single type of respiratory allergies in most cases. Conclusions: Maternal unhealthy behaviors during pregnancy could increase the risk of childhood respiratory allergies with a dose-response pattern. Males were more susceptible to the association. The identification of modifiable maternal risk behaviors lies in the emphasis of intervention in early life to face up increasing childhood allergies.

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Section: Discussionmentioning

confidence: 99%

Effect of maternal sleep, physical activity and screen time during pregnancy on the risk of childhood respiratory allergies: a sex-specific study

et al. 2020

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“…3 Allergic diseases was usually higher prevalent in urban area than in rural areas within a geographical region 26 , though there existing some inconsistent results. 27 Urbanization is accompanied by a modern style of life, electronic screen exposure is more frequent, sedentary time is increasing while sleeping time is decreasing, 11 and it has been proved that pregnant women spend at least half their time on sedentary behaviors. 28 Our results provided new evidence to the hypothesis that a mother's lifestyle choice during pregnancy could affects offspring's long-term health, herein childhood respiratory allergies.…”

Section: Discussionmentioning

confidence: 99%

Effect of Maternal Sleep, Physical Activity and Screen Time during Pregnancy on the Risk of Childhood Respiratory Allergies: a Sex-specific Study

Chen

Lyu

Xia

et al. 2020

Preprint

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Background: Early life exposure in the uterus had a long-term effect on children's health. As the prevalence of allergies is increasing with a remarkable sex difference, very few studies have traced back to their early origins. We sought to investigate if maternal behavioral exposure, herein sleep, physical activity, and screen time during pregnancy is associated with childhood respiratory allergies. The sex difference would be examined. Methods: 6236 mother-child pairs from Shanghai Children Allergy Study (SCAS) were enrolled, The International Study of Asthma and Allergies in Childhood questionnaire was adopted to evaluate respiratory allergic diseases. Results: 14.6%, 16.2%, and 21.0% of children had asthma, wheeze, and allergic rhinitis, respectively. Maternal short sleep duration, lack of physical activity, and too much screen exposure during pregnancy could increase the risk of childhood respiratory allergies, however, the significance was found only in males. Moreover, a dose-response trend was clearly shown, any two of the three combined could increase the risk (OR,1.921; 95%CI,1.217-3.033), and the coexistence of all three further amplified the risk (OR,2.412; 95%CI,1.489-3.906). The findings can be verified in allergen test subgroup and each single type of respiratory allergies in most cases. Conclusions: Maternal unhealthy behaviors during pregnancy could increase the risk of childhood respiratory allergies with a dose-response pattern. Males were more susceptible to the association. The identification of modifiable maternal risk behaviors lies in the emphasis of intervention in early life to face up increasing childhood allergies.

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“…En México, diversos esfuerzos han sido realizados recientemente para determinar la prevalencia del asma en niños escolares. En dos estudios, uno en la zona sur y otro en la zona de los Altos de Jalisco, la frecuencia del asma fue similar a la obtenida en nuestra investigación, sin embargo, se debe aclarar que ambas ciudades a pesar de ser áreas urbanas no están altamente industrializadas, 7,8 como el caso del Bajío. Por su parte, en el centro de la República Mexicana, 12 % de los niños escolares de Cuernavaca tuvo asma diagnosticada por un médico, 9 en tanto en Hidalgo, Puebla y Tlaxcala fue de 18, 10 y 7 %, respectivamente.…”

Section: Discussionunclassified

“…En la dermatitis atópica, los estudios encaminados a determinar su prevalencia en México son escasos; en nuestra investigación difícilmente superó 3 %, similar a la observada en Ciudad Guzmán, 13 población ubicada al sur del estado de México y en la región de los Altos de Jalisco. 8 Al comparar nuestro resultado con el escenario mundial, nos pudimos dar cuenta de que la frecuencia de dermatitis atópica fue mucho menor. 4 ¿Por qué Salamanca mostró las cifras de prevalencia más altas que el resto de las ciudades?…”

Section: Discussionunclassified

Prevalencia de asma, rinitis alérgica y dermatitis atópica en niños escolares en el Bajío de México

Ramírez-Soto

Bedolla-Barajas

González‐Mendoza

2018

RAM

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Antecedentes: La prevalencia de enfermedades alérgicas varía notoriamente de acuerdo con la región geográfica.Objetivo: Determinar las prevalencias de asma, rinitis alérgica y dermatitis atópica en niños de seis y siete años residentes del Bajío, México.Métodos: Estudio transversal que incluyó una muestra de casi 15 mil niños en cinco ciudades del Bajío. Los padres contestaron el cuestionario de The International Study of Asthma and Allergies in Childhood, de donde se obtuvo la prevalencia de las enfermedades alérgicas y sus síntomas. Se estimaron intervalos de confianza (IC) a 95 % para proporciones.Resultados: Del total de la muestra, 7466 (52.5 %) fueron niños y 7463 (47.5 %) niñas. En general, las prevalencias de asma, asma con el ejercicio y asma actual fueron 6.1 % (IC 95 % = 5.7-6.5 ), 2.1 % (IC 95 % = 1.9-2.3) y 11.6 % (IC 95 % = 11.1-12.1), respectivamente. Por su parte, la prevalencia de rinitis alérgica fue de 5.4 % (IC 95 % (5.1-5.8 ), de rinitis más conjuntivitis de 19.2 % (IC 95 % = 18.6-19.8) y de rinitis actual de 52.8 % (IC 95 % = 52-53.6). La prevalencia de dermatitis atópica y de dermatitis actual fue de 3.4 % (IC 95 % = 3.1-3.7) y 7.8 % (IC 95 % = 7.4-8.2).Conclusiones: Los resultados indicaron que la prevalencia de las enfermedades alérgicas en niños escolares es similar a las observadas en estudios previos en México.

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A rural environment does not protect against asthma or other allergic diseases amongst Mexican children

Abstract: In our study, we were unable to find protective factors in a rural environment that might decrease the prevalence of asthma or allergic diseases.

Cited by 17 publications

References 25 publications

Effect of maternal sleep, physical activity and screen time during pregnancy on the risk of childhood respiratory allergies: a sex-specific study

Effect of maternal sleep, physical activity and screen time during pregnancy on the risk of childhood respiratory allergies: a sex-specific study

Effect of Maternal Sleep, Physical Activity and Screen Time during Pregnancy on the Risk of Childhood Respiratory Allergies: a Sex-specific Study

Prevalencia de asma, rinitis alérgica y dermatitis atópica en niños escolares en el Bajío de México

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