title: Preterm low birth weight and maternal periodontal status: a meta-analysis.
abstract: OBJECTIVE
  This study was undertaken to assess the effect of maternal periodontal disease on preterm delivery and/or birth of low-weight infants.
  
  
  METHODS
  We conducted a meta-analytic review of 5 medical databases (MEDLINE, EMBASE, LILACS, BIOSIS and PASCAL) for human observational studies linking preterm delivery and/or birth of low-weight infants to maternal periodontal disease. The MOOSE guidelines for meta-analysis of observational studies were followed.
  
  
  RESULTS
  The literature search revealed 17 articles that met the inclusion criteria. Seven thousand one hundred fifty-one women participated in the studies, 1056 of whom delivered a preterm and/or low birthweight infant. The overall odds ratio was 2.83 (95% CI: 1.95-4.10, P < .0001). This pooled value needed to be interpreted cautiously because there appeared to be a clear trend for the better quality studies to be of lower association strength.
  
  
  CONCLUSIONS
  These findings indicate a likely association, but it needs to be confirmed by large, well-designed, multicenter trials.
authors.affiliation: Department of Epidemiology, Dental School, Toulouse, France.
authors.forename: Jean-Noël
authors.initials: JN
authors.lastname: Vergnes
authors.forename: Michel
authors.initials: M
authors.lastname: Sixou
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D010510:Periodontal Diseases / Q000150:complications*; D011247:Pregnancy; D011248:Pregnancy Complications; D011256:Pregnancy Outcome; D047928:Premature Birth