Annual SO2 exposure, asthma, atopy, and lung function in Puerto Rican children.
Pediatr Pulmonol
; 55(2): 330-337, 2020 02.
Article
in English
| MEDLINE | ID: covidwho-1064414
ABSTRACT
BACKGROUND:
Long-term effects of sulfur dioxide (SO2 ) exposure on children, a vulnerable population, are largely unknown. Further, how long-term SO2 affects Puerto Rican children living in the island of Puerto Rico, a group with high asthma prevalence, is unclear. We evaluated the effects of annual average 1-hour daily maximum SO2 average on asthma, atopy, total immunoglobulin E (IgE), and lung function in Puerto Rican children.METHODS:
A cohort of 678 children (351 with asthma, 327 without asthma) was recruited in Puerto Rico from 2009 to 2010. Annual average 1-hour daily maximum SO2 exposure was interpolated utilizing publicly available monitoring data. Multivariable logistic and linear regression was used for the analysis of asthma, atopy (defined as an IgE ≥0.35 IU/mL to at least one of five common aero-allergens), total IgE, and lung function measures (forced vital capacity [FVC], forced expiratory volume in 1 second [FEV1], and FEV1/FVC ratio).RESULTS:
Annual SO2 exposure (per 1 ppb) was significantly associated with asthma (odds ratio [OR] = 1.42; 95% confidence interval [CI] = 1.05-1.91) and atopy (OR = 1.35; 95% CI = 1.02-1.78). Such exposure was also significantly associated with lower FEV1/FVC in all children (ß = -1.42; 95% CI = -2.78 to -0.08) and in children with asthma (ß = -2.39; 95% CI= -4.31 to -0.46). Annual SO2 exposure was not significantly associated with total IgE, FEV1, or FVC.CONCLUSIONS:
Among Puerto Rican children in Puerto Rico, long-term SO2 exposure is linked to asthma and atopy. In these children, long-term SO2 exposure is also associated with reduced FEV1/FVC, particularly in those with asthma.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Asthma
/
Sulfur Dioxide
/
Inhalation Exposure
/
Air Pollution
Type of study:
Cohort study
/
Experimental Studies
/
Observational study
/
Prognostic study
/
Randomized controlled trials
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
Caribbean
/
Puerto Rico
Language:
English
Journal:
Pediatr Pulmonol
Journal subject:
Pediatrics
Year:
2020
Document Type:
Article
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