title: A multicenter randomized comparative investigation of ML Cu250, TCu-220C and Cu7 IUDs.
abstract: The final analysis of 1725 interval insertions of the 3 IUDs is presented.  The earlier observations were confirmed at:  at 24 months, no significant differences were found between the TCu-220C and ML Cu250 IUDs though the TCu-220C had a lower gross pregnancy rate (2.0 versus 2.9) and the ML Cu250 had a lower expulsion rate (2.3 versus 4.1).  Expulsions were more common with the Cu7 when compared to the ML Cu250 (p 0.001) and T-220C (p 0.01); pregnancy rates were also higher with p values of 0.05 and 0.01 respectively.  Other use-related terminations were not significantly different among the 3 IUDs and continuation rates at 24 months were:  Cu7, 69, TCu-220C, 73, and ML Cu250, 74.
authors.forename: T H
authors.initials: TH
authors.lastname: Goh
authors.forename: H
authors.initials: H
authors.lastname: Hutapea
authors.forename: T
authors.initials: T
authors.lastname: Mccarthy
authors.forename: T A
authors.initials: TA
authors.lastname: Sinnathuray
authors.forename: V
authors.initials: V
authors.lastname: Sivanesaratnam
authors.forename: D K
authors.initials: DK
authors.lastname: Sen
authors.forename: M J
authors.initials: MJ
authors.lastname: Nanafiah
authors.forename: P
authors.initials: P
authors.lastname: Simadjuntak
authors.forename: L S
authors.initials: LS
authors.lastname: Lim
authors.forename: S S
authors.initials: SS
authors.lastname: Ratnam
mesh_terms: D001723:Birth Rate; D003267:Contraception; D003268:Contraception Behavior; D003710:Demography; D003933:Diagnosis; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D005298:Fertility; D006801:Humans; D007434:Intrauterine Devices; D007435:Intrauterine Devices, Copper; D010342:Patient Acceptance of Health Care; D011153:Population; D011157:Population Dynamics; D018873:Pregnancy Rate; D012106:Research; D012107:Research Design; D013812:Therapeutics
keywords: Acceptor Characteristics; Comparative Studies; Contraception; Contraception Continuation--statistics; Contraception Failure; Contraception Termination; Contraceptive Methods; Contraceptive Usage; Demographic Factors; Evaluation; Examinations And Diagnoses; Family Planning; Fertility; Fertility Measurements; Insertion; Iud; Iud, Copper Releasing; Measurement; Population; Population Dynamics; Pregnancy Rate; Research Methodology; Studies; Treatment