Document Detail

Randomized comparative study of the copper T 300, Dalkon shield, and Shell Loop in parous women.
MedLine Citation:
PMID:  1124175     Owner:  NLM     Status:  MEDLINE    
A randomized comparative study of the Copper T 300, the standard Dalkon Shield and the Silicone Shell Loop D was conducted on 776 parous women. Net cumulative first event rates at 1 year and at 18 months, calculated by life-table analysis, were as follows: Copper T 300--pregnancy 1.2/1.9, expulsion 6.4/7.0, removal for pain or bleeding 7.4/10.8; Dalkon Shield--pregnancy 2.7/4.5, expulsion 5.8/5.8, removal for pain or bleeding 7.7/14.7; Shell Loop--pregnancy 3.8/4.9, expulsion 0.5/0.5, removal for pain or bleeding 9.1/13.1. None of the differences in event rates, except the lower expulsion rate of the Shell Loop, were significant. The continuation rates for the three devices at both 12 and 18 months were similar, indicating that there was little difference in their performance. As the results of this study showed a similarity of the incidence of events among very differently disigned IUD's, previously reported differences in performance of these and possibly other types of IUD's may very likely be more related to differences among clinics than to differences among the devices themselves.
D L Cooper; R Israel; D R Mishell
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Obstetrics and gynecology     Volume:  45     ISSN:  0029-7844     ISO Abbreviation:  Obstet Gynecol     Publication Date:  1975 May 
Date Detail:
Created Date:  1975-07-07     Completed Date:  1975-07-07     Revised Date:  2009-10-26    
Medline Journal Info:
Nlm Unique ID:  0401101     Medline TA:  Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  569-73     Citation Subset:  AIM; IM    
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MeSH Terms
Copper / pharmacology
Intrauterine Device Expulsion
Intrauterine Devices* / adverse effects
Middle Aged
Pain / etiology
Patient Acceptance of Health Care
Statistics as Topic
Uterine Hemorrhage / etiology
Uterus / drug effects
Reg. No./Substance:
0/Silicones; 7440-50-8/Copper

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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