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Prenatal paracetamol use and asthma in childhood: A systematic review and meta-analysis
1Norman Bethune Health Science Center, Jilin University, 828 Xinmin Avenue, Changchun 130021, Jilin, China.
Insights
Prenatal paracetamol exposure is linked to a higher risk of childhood asthma. This meta-analysis confirms a significant association, even with exposure during specific trimesters.
Area of Science:
- Epidemiology
- Pediatric Health
- Pharmacology
Background:
- Conflicting evidence exists regarding prenatal paracetamol (acetaminophen) use and childhood asthma risk.
- Previous studies have yielded inconsistent results, necessitating a comprehensive review.
Purpose of the Study:
- To conduct a meta-analysis investigating the association between prenatal paracetamol exposure and the risk of developing childhood asthma.
- To consolidate findings from existing studies to provide a clearer understanding of this relationship.
Main Methods:
- A systematic literature search was performed on the Pubmed and Embase databases up to June 2016.
- Data from 13 studies, encompassing over 1,043,109 individuals, were included.
- A random-effects model was employed to calculate pooled odds ratios (OR) and confidence intervals (CI).
Main Results:
- A statistically significant association was found between prenatal paracetamol exposure and increased childhood asthma risk (OR=1.19; 95% CI, 1.12-1.27).
- Exposure during the first trimester showed a significant association (OR=1.21; 95% CI, 1.14-1.28).
- Exposure during the second and third trimesters was also associated with increased asthma risk (OR=1.13; 95% CI, 1.04-1.23).
Conclusions:
- Prenatal paracetamol exposure is significantly associated with an elevated risk of childhood asthma.
- The findings highlight a potential link between maternal use of paracetamol during pregnancy and adverse respiratory outcomes in children.
Objectives:
Some studies have suggested that prenatal paracetamol exposure might associate with the risk of child asthma. However, other studies have not confirmed this result. Therefore, we conducted a meta-analysis to investigate their relationship.
Methods:
Two authors searched Pubmed and Embase databases up to June 2016. The strength of the association was calculated with the OR and respective 95% CIs. The random-effects model was chosen to calculate the pooled OR.
Results:
A total of 13 articles of more than 1,043,109 individuals were included in the meta-analysis. A statistically significant association between prenatal paracetamol exposure and child asthma risk was found. The data showed that prenatal paracetamol exposure could increase the risk of child asthma (OR=1.19; 95% CI, 1.12-1.27; P<0.00001) in a random-effect model. Six studies reported paracetamol exposure during the first trimester of pregnancy. We found that paracetamol exposure during the first trimester of pregnancy was associated with increased risk of child asthma (OR=1.21; 95% CI, 1.14-1.28; P<0.00001). Furthermore, we observed that paracetamol exposure during the 2-3 trimesters of pregnancy was also associated with child asthma risk (OR=1.13; 95% CI, 1.04-1.23; P=0.005).
Conclusions:
This study suggested that prenatal paracetamol exposure was significantly associated with the increased risk of child asthma.
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