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Duration of day care attendance during infancy predicts asthma at the age of seven: The Cincinnati Childhood Allergy and Air Pollution Study

Resource Type: Reports & Papers
Author(s): Cheng, Gang; Smith, Andrew M.; Levin, Linda; Epstein, Tolly; Ryan, Patrick H.; LeMasters, Grace K.; Hershey, Gurjit K. Khurana; Reponen, Tiina; Villareal, Manuel; Lockey, James E.; Bernstein, David I.
Date Issued: October, 2014
Description: Studies vary with respect to the reported effects of day care attendance on childhood asthma. Objectives To evaluate the independent and combined effects of day care attendance and respiratory infections on the development of asthma at the age of seven in a prospective birth cohort. Method At the age of seven, the study sample included 589 children with complete data of 762 enrolled at birth. Day care hours and number of respiratory infections were reported in follow-up questionnaires through age four. At 7 years of age, asthma was diagnosed in 95 children (16%), based on predefined symptoms criteria confirmed by either asthma FEV1 reversibility after bronchodilator or a positive methacholine test (PC20 [is less than or equal to] 4 mg/mL). Logistic regression was used to investigate the relationships between asthma at the age of seven, cumulative hours of day care attendance and reported respiratory infections at ages 1-4. Results In the univariate analyses, day care attendance at 12 months was associated with an increased risk of asthma [odds ratio (OR) = 1.8, 95% confidence interval (CI) = 1.1-3.0]. Both upper and lower respiratory infections at 12 months also increased the likelihood of asthma [OR = 2.4 (1.4-4.1); OR = 2.3 (1.5-3.7), respectively]. In the final multivariate logistic model, cumulative hours of day care attendance and number of lower respiratory infections at 12 months were associated with asthma [OR = 1.2 (1.1-1.5); OR = 1.4 (1.2-1.7), respectively]. However, a threshold of greater than 37.5 hours per week of day care attendance was associated with a lower risk of asthma [OR = 0.6 (0.4-0.9)]. Conclusion Depending on duration of attendance, day care during infancy can either increase or reduce risk of asthma at the age of seven. (author abstract)
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Journal Title: Clinical and Experimental Allergy
Volume Number: 44
Issue Number: 10
Page Range: 1274-1281
Note: This resource is based on data from the Cincinnati Childhood Allergy and Air Pollution Study (birth cohort)
Topics: Children & Child Development > Child Characteristics > Time In Child Care

Children & Child Development > Child Development & School Readiness > Physical Development & Growth
Country: United States
States: KENTUCKY, OHIO
ISSN: 1365-2222 Online
0954-7894 Paper
Peer Reviewed: yes
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