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Interpregnancy Interval and Anti-inflammatory Cervical Cytokines among Women with Previous Spontaneous Preterm Birth.
MedLine Citation:
PMID:  25486289     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objective Both history of spontaneous preterm birth (sPTB) and shorter interpregnancy intervals (IPIs) increase the risk of recurrent sPTB. Mechanisms underlying the association between IPI and recurrent sPTB are unknown. We have previously demonstrated that higher concentrations of cervical anti-inflammatory cytokines are a risk factor for sPTB and upper genital tract inflammation. Here, we examine the association between IPI and cervical anti-inflammatory cytokines among women with previous sPTB. Patients and Methods  A prospective cohort of 73 women with previous sPTB and cervical interleukins (IL-4, IL-10, and IL-13) measured at < 16 weeks. Using the published principal factor analysis, the anti-inflammatory (ANTI) score was calculated. From our previous work, higher ANTI scores increase the subsequent risk of sPTB. IPI was the time from the previous birth to the conception of current pregnancy. Confounders included education level, marital status, gonorrhea, chlamydia, body mass index, race, and cigarette smoking. IPI and ANTI score were analyzed using univariable and multivariable analyses. Results There was a significant negative linear relation between IPI and ANTI score (β = -0.075, p = 0.017). This persisted after adjustment for confounders (p = 0.02). As IPI decreases by 1 month, the ANTI-score-associated risk of sPTB increases approximately by 4%. Conclusion Among women with previous sPTB, there was a significant negative linear relation between IPI and ANTI score.
Authors:
Raj Shree; Hyagriv N Simhan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-8
Journal Detail:
Title:  American journal of perinatology     Volume:  -     ISSN:  1098-8785     ISO Abbreviation:  Am J Perinatol     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-8     Completed Date:  -     Revised Date:  2014-12-9    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.
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