MODELLING COSTS AND OUTCOMES OF EXPANDED AVAILABILITY OF EMERGENCY CONTRACEPTIVE USE IN BRITISH COLUMBIA

Main Article Content

Judith A Soon
Lisa M Meckley
Marc Levine
Kristin D Marciante
David W Fielding
Mary HH Ensom

Keywords

Emergency contraception, levonorgestrel, Yuzpe regimen, morning after pill, cost savings, unintended pregnancy

Abstract

Background


Emergency contraception (EC) can potentially reduce unwanted pregnancies and abortions. However,these agents are underused due to lack of awareness and barriers to utilization. While earlier economic evaluations have indicated that use of EC is potentially cost-effective, recent evidence of a lower risk of pregnancy following unprotected intercourse than previously reported suggest prior studies may have over-estimated cost savings.


 Objectives


To model cost savings and pregnancy-related outcomes associated with the policy change authorizing pharmacist  provision of  EC in  British  Columbia,  and  to  estimate  the  costs of  initiatives to  further women’s awareness and utilization of EC that would result.


 Methods


Three decision analytic models were developed evaluating current EC utilization (physician-only), EC utilization following pharmacist provision and potential expanded EC awareness and utilization following a public awareness initiative. Models were developed from the Ministry of Health perspective for 2001 using cost and event data from the Ministry supplemented by data from the literature.


 Results


Current EC utilization saved the Ministry $2.20 million (95% CR: $0.15 million, $4.90 million) in medical costs the first year, and incremental savings from pharmacist provision was $0.64 million (95% CR: $0.24 million, $1.28 million). A public awareness initiative costing less than $2.57 million (95% CR:$0.22 million, $5.75 million) annually is potentially cost saving.


 Conclusions


Pharmacist provision of EC was cost saving to the Ministry, even when the estimated risk of pregnancy in the population is less than assumed in previous studies. Increasing EC availability directly from pharmacists and increasing EC awareness have the potential to reduce health care costs.

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References

1. British Columbia Vital Statistics Agency. Pregnancy Counts and Rates by Age Groups by Health Region: British Columbia 1993 to
2001. Victoria, BC: The Agency, 2003.
2. Henshaw SK. Unintended pregnancy in the United States. Fam Plann Perspect 1998;30:24-29 & 46.
3. Schrager L. Unintended Pregnancy. Olympia, WA: Washington State Department of Health.1997. First Steps Database, 7(1).
4. Brown SS, Eisenberg L, ed.: The best intentions: unintended pregnancy and the well-being of children and families. Washington, D.C.: National Academies Press,1995.
5. Trussell J, Rodriguez G, Ellertson C. New estimates of the effectiveness of the Yuzpe regimen of emergency contraception. Contraception 1998;57: 363-9.
6. Trussell J, Ellertson C, and Stewart F. The effectiveness of the Yuzpe regimen of emergency contraception. Fam Plann Perspect 1996;28: 58-64, 87. [published erratum appears in Fam Plann Perspect 1997;29:60]
7. World Health Organization Research Group on Post-Ovulatory Methods of Fertility Regulation. Randomised controlled trial of levonorgestrel versus the Yuzpe regimen of combined oral contraceptives for emergency contraception. Lancet 1998;352:428- 33.
8. Trussell J, Koenig J, Ellertson C, Stewart F. Preventing unintended pregnancy: the cost- effectiveness of three methods of emergency contraception. Am J Public Health 1997; 87:932- 7.
9. Trussell J, Wiebe E, Shochet T, Guilbert E. Cost savings from emergency contraceptive pills in Canada. Obstet Gynecol 2001;97(5 Pt
1):789-93.
10. Marciante KD, Gardner JS, Veenstra DL, Sullivan SD. Modeling the cost and outcomes of pharmacist-prescribed emergency contraception. Am J Public Health 2001;91:1443-5.
11. Trussell J, Calabretto H. Cost savings from use of emergency contraceptive pills in Australia. Aust N Z J Obstet Gynaecol 2005;45:308-11.
12. Levine M, Soon JA. Risk of pregnancy among women seeking emergency contraceptives from pharmacists in British Columbia. J Obstet Gynaecol Can 2006;28(10):879 -883.
13. Soon JA, Levine M, Osmond BL, Ensom MHH, Fielding DW. Expanding access to emergency contraceptives in British Columbia: a population-based study. Can Med Assoc J 2005;172:878- 83.
14. Kubba A. Emergency contraception with levonorgestrel or the Yuzpe regimen. Lancet,1998;352:1939 -40.
15. Trussell J, Ellertson C, von Hertzen H, Bigrigg A, Webb A, Evans M, Ferden S, Leadbetter C. Estimatin the effectiveness of emergency contraceptive pills. Contraception 2003;67:259-65.
16. Fisher W, Boroditsky R, Morris B. The 2002 Canadian contraception study: part 1. J Obstet Gynaecol Can 2004;26:580- 90.
17. Medical Services Commission Payment Schedule 2001. Accessed November 7, 2007: http://www.healthservices.gov.bc.ca/msp/info prac/physbillingpayschedule/index.html
18. Trussell J, Koenig J, Vaughan B, Stewart F. Evaluation of a media campaign to increase knowledge about emergency contraception. Contraception 2001;63:81-7.
19. Lewis C, Wood C, Randall S. Unplanned pregnancy: is contraceptive failure predictable? Br J Fam Plann 1996;22:16-9.
20. Pearson VA, Owen MR, Phillips DR, Gray DJ, Marshall MN. Pregnant teenagers' knowledge and use of emergency contraception. BMJ 1995;310:1644.
21. Bromham DR, Cartmill RS. Knowledge and use of secondary contraception among patients requesting termination of pregnancy. BMJ 1993;306:556-7.
22. Duncan G, Harper C, Ashwell E, Mant D, Buchan H, Jones L. Termination of pregnancy: lessons for prevention. Br J Fam Plann. 1990;15:112-7.
23. Lung RHW, Soon JA, Levine M. Physician dispensing of non-prescribed emergency contraceptive pills in women in British Columbia. J Informed Pharmacother 2002;11:400. (abst.)
24. Trussell J, Leveque JA, Koenig JD, London R, Borden S et al. The economic value of contraception: a comparison of 15 methods. Am J Public Health 1995; 85:494-503.
25. Wilcox AJ, Dunson DB, Weinberg CR, Trussell J, Baird DD. Likelihood of conception with a single act of intercourse: providing benchmark rates for assessment of post-coital contraceptives. Contraception 2001;63:211-5.
26. Regulations Amending the Food and Drug Regulations (1272 - Levonorgestrel). April 19, 2005. Canada Gazette. 2005:139(9). Accessed November 7, 2007: http://canadagazette.gc.ca/partII/2005/20050504/html/sor105-e.html