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Risk factors for respiratory infections among children attending day care centres
Ana S Alexandrino1, Rita Santos2, Cristina Melo2
1Department of Physiotherapy, School of Allied Health Technologies, Polytechnic Institute of Porto, Vila Nova de Gaia and Department of Health Sciences, University of Aveiro, Aveiro, Portugal. ama@estsp.ipp.pt.
Insights
Daycare attendance increases upper respiratory infection risk due to center factors. Lower respiratory infections link to household and maternal factors, while acute otitis media risk is tied to child-specific factors.
Area of Science:
- Pediatric Infectious Diseases
- Epidemiology
- Public Health
Background:
- Upper respiratory tract infections (URTI), lower respiratory tract infections (LRTI), and acute otitis media (AOM) are prevalent in children attending daycare.
- Identifying risk factors is crucial for prevention strategies in this vulnerable population.
Purpose of the Study:
- To investigate and characterize the specific risk factors associated with URTI, LRTI, and AOM in children attending daycare centers.
- To differentiate between daycare-related, household-related, mother-related, and child-related risk factors for these common childhood infections.
Main Methods:
- A cross-sectional study involving 152 children aged up to 3 years across six daycare centers in Porto.
- Logistic regression analysis was employed to assess independent variables (mother, household, child, and daycare factors) as predictors of URTI, LRTI, and AOM.
Main Results:
- URTI risk was associated with daycare crowding and disinfection practices; nasal aspirator use increased risk. LRTI risk was linked to smaller household size, lack of siblings, and non-exclusive breastfeeding. AOM risk correlated with birth BMI, weight, and nasal aspirator use.
- Specific risk factors were identified for each condition: URTI with daycare environment, LRTI with maternal and household factors, and AOM with child-specific characteristics.
Conclusions:
- Daycare-associated factors significantly influence URTI risk.
- Maternal and household factors play a key role in LRTI development.
- Child-related factors are primarily associated with the risk of AOM.
Background:
Upper respiratory tract infection (URTI), lower respiratory tract infection (LRTI) and acute otitis media (AOM) are common in children attending day care centres.
Objectives:
This study aimed to characterize the risk factors of URTI, LRTI and AOM in children attending day care.
Methods:
A cross-sectional study was conducted in children aged up to 3 years (n = 152) of six day care centres in Porto. Logistic regression was used on independent variables: mother-related, household-related, child-related and day care-related risk factors as predictors of the dependent variables: URTI, LRTI and AOM.
Results:
The risk of URTI increased as the number of children decreased [odds ratio (OR) = 0.620, 95% CI = 0.411-0.935], as the area per child decreased (OR = 0.434, 95% CI = 0.206-0.914) and as the disinfection of WC/diapers-change increased (OR = 2.56, 95% CI = 1.089-6.017). There was a higher risk of URTI if nasal aspirators (OR = 6.763, 95% CI = 1.022-44.753), rather than physiologic serum (OR = 5.296, 95% CI = 1.097-25.559), were used at day care centres. The risk of LRTI increased as the household size decreased (OR = 0.213, 95% CI = 0.048-0.937) and it was higher if the child had no siblings (OR = 7.831, 95% CI = 1.065-57.578). The risk of LRTI was higher if the child was not exclusively breastfed (OR = 24.612, 95% CI = 1.108-546.530) and the risk increased as the duration of exclusive breastfeeding decreased (OR = 0.396, 95% CI = 0.170-0.920). The risk of AOM increased as the birth body mass index (OR = 2.247, 95% CI = 1.011-4.992) and weight (OR = 1.607, 95% CI = 1.014-2.545) increased and if nasal aspirators were used (OR = 6.763, 95% CI = 1.022-44.753).
Conclusion:
URTI were related with day care centres' risk factors, LRTI were associated with mother-related and household-related risk factors and AOM was connected with child-related risk factors.
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