Advanced search
Publication Cover
The European Journal of Contraception & Reproductive Health Care Volume 8, 2003 - Issue 2
Submit an article Journal homepage
341
Views
27
CrossRef citations to date
0
Altmetric
(RG) Obstetrics and Gynaecology

Recommendation for confidence interval and sample size calculation for the Pearl Index

C. Gerlinger Schering AG, Berlin, Germany
,
J. Endrikat Schering AG, Berlin, Germany
,
E. A. van der Meulen NV Organon, Oss, The Netherlands
,
T. O. M. Dieben NV Organon, Oss, The Netherlands
&
B. Düsterberg Schering AG, Berlin, Germany
Pages 87-92 | Published online: 06 Jul 2009

REFERENCES

  • Pearl R. Factors in human fertility and their statistical evaluation. Lancet 1933;2:607–11
  • Pearl R. On the frequency of the use of contra- ceptive methods, and their effectiveness as used, by a sample of American women. Bull Inst Int Stat 1933; 27:208–24
  • Duenas J, Albert A, Carrasco F, Aroca J. New methods of mathematical analysis for studies of intrauterine contraception. Eur J Obstet Gynecol Reprod Biol 1996; 68:143–6
  • Trussel J. Methodological pitfalls in the analysis of contraceptive failure. Stat Med 1991;10:201–20
  • Tietze C, Lewit S. Recommended procedures for the statistical evaluation of intrauterine contraception. Stud Fam Plann 1973;4:35–42
  • The European Agency for the Evaluation of Medicinal Products (EMEA). Committee for Propri- etary Medicinal Products (CPMP). Note for Guidance on Clinical Investigation of Steroid Contraceptives in Women.CPMP/EWP/519/98,2000, London
  • Endrikat J, Düsterberg B, Ruebig A, Gerlinger C, Strowitzki T. Comparison of efficacy, cycle control and tolerability of two low-dose oral contraceptives in a multicenter clinical study. Contraception 1999;60:269–74
  • Foidart JM, Wuttke W, Bouw GM, Gerlinger C, Heithecker R. A comparative investigation ofcontraceptive reliability, cycle control and tolerance of two monophasic oral contraceptives containing either drospirenone or desogestrel. Eur J Contracept Reprod Health Care 2000;5:124–34
  • Crow EL, Gardner RS. Confidence intervals for the expectation of a Poisson variable. Biometrika 1959; 46:441–53
  • The European Agency for the Evaluation of Medicinal Products (EMEA). ICH Topic E9. Statistical Principles for Clinical Trials. CPMP/ICH/363/96, section 5.2, 1998, London
  • NuvaRingÒ [package insert]. West Orange, NJ: Organon Inc., 2001
  • YasminÒ [package insert]. Wayne, NJ: Berlex Laboratories Inc., 2001
  • Potter LS. How effective are contraceptives? The deter- mination and measurement of pregnancy rates. Obstet Gynecol 1996; 88(Suppl 3):13–23S
  • Sheps MC. Characteristics of a ratio used to estimate failure rates. Biometrics 1966;22:310–21
  • The European Agency for the Evaluation of Medicinal Products (EMEA). ICH Topic E9. Statistical Principles for Clinical Trials. CPMP/ICH/363/96, section 5.5, 1998, London

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Related research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.