Loop vs. Shield: A competing risks analysis of IUD termination

Jay Herson, Cyril L. Crocker, Ernest Butts

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A competing risks life table analysis of IUD termination in 167 women using the Lippes Loop and 407 women using the Dalkon Shield from a predominantly Black cohort in Washington, D.C. is presented. Parous Loop D users had a significantly greater 12-month gross risk of medical removals than the parous Standard size shield users (26.2/100 women vs. 11.6/100 women, p < .05). Comparisons with results of other studies are made.

Original languageEnglish (US)
Pages (from-to)67-74
Number of pages8
Issue number1
StatePublished - Jul 1976
Externally publishedYes

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology


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