title: Safety of tetanus toxoid in pregnant women: a hospital-based case-control study of congenital anomalies.
abstract: Reported are the results of the Latin American Collaborative Study of Congenital Malformations (ECLAMC), a hospital-based case-control study of 34,293 malformed and 34,477 matched nonmalformed newborn controls. No statistical differences were found between the malformed and control groups, exposed or not exposed to tetanus toxoid.
authors.affiliation: Expanded Program on Immunization, Pan American Health Organization, Washington, DC 20037, USA.
authors.forename: C M
authors.initials: CM
authors.lastname: Silveira
authors.forename: V M
authors.initials: VM
authors.lastname: Cáceres
authors.forename: M G
authors.initials: MG
authors.lastname: Dutra
authors.forename: J
authors.initials: J
authors.lastname: Lopes-Camelo
authors.forename: E E
authors.initials: EE
authors.lastname: Castilla
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000209:etiology*; D016907:Adverse Drug Reaction Reporting Systems; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012307:Risk Factors; D013020:South America; D013745:Tetanus Toxoid / Q000009:adverse effects*
chemical_list: D013745:Tetanus Toxoid