Why do women experience untimed pregnancies? A review of contraceptive failure rates

Best Practice and Research: Clinical Obstetrics and Gynaecology

Volumn 24, Issue 4, 2010, Pages 443-455

  Black, Kirsten I ^a,c   Gupta, Sunanda ^b   Rassi, Angela ^c   Kubba, Ali ^d,e  

^a UNIVERSITY OF SYDNEY   (Australia)

^b QUEEN MARY UNIVERSITY OF LONDON   (United Kingdom)

^c ROYAL PRINCE ALFRED HOSPITAL   (Australia)

^d GUY'S AND ST THOMAS' NHS FOUNDATION TRUST   (United Kingdom)

^e KING'S COLLEGE LONDON   (United Kingdom)

Author keywords

contraceptive failure; contraceptive methods; untimed pregnancy

Indexed keywords

ETHINYLESTRADIOL PLUS ETONOGESTREL; ETHINYLESTRADIOL PLUS LEVONORGESTREL; ETHINYLESTRADIOL PLUS NORELGESTROMIN; ORAL CONTRACEPTIVE AGENT;

AMBIVALENCE; AMENORRHEA; BEHAVIOR; CLINICAL TRIAL; CONDOM; CONTRACEPTION; DEMOGRAPHY; ETHNICITY; FERTILITY; HUMAN; INSTRUMENT STERILIZATION; POVERTY; PRIORITY JOURNAL; REVIEW; SEXUAL ABUSE; SEXUAL INTERCOURSE; SOCIAL ASPECT; SUBSTANCE ABUSE; TREATMENT FAILURE; UNPLANNED PREGNANCY; VAGINA RING; VIOLENCE;

ADOLESCENT; ADULT; AGE FACTORS; CONTRACEPTION BEHAVIOR; CONTRACEPTIVE AGENTS, FEMALE; CONTRACEPTIVE DEVICES; DRUG IMPLANTS; EQUIPMENT FAILURE; FEMALE; HEALTH KNOWLEDGE, ATTITUDES, PRACTICE; HUMANS; PREGNANCY; PREGNANCY, UNPLANNED; PREGNANCY, UNWANTED; YOUNG ADULT;

EID: 77956650778     PISSN: 15216934     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bpobgyn.2010.02.002     Document Type: Review

References (104)

1. C. Moreau, J. Trussell, and G. Rodrigues Contraceptive failure rate in France: results from a population based survey Hum Reprod 22 9 2007 2422 2427
2. J. Cleland, and M.M. Ali Reproductive consequences of contraceptive failure in nineteen developing countries Obstet Gynecol 104 2 2004 314 320
3. C.A. Bachrach, and S. Newcomer Intended pregnancies and unintended pregnancies: distinct categories or opposite ends of a continuum Fam Plann Perspect 31 1999 251 252
4. J.D. Gipson, M.A. Koenig, and M.J. Hindin The effects of unintended pregnancy on infant, child, and parental health: a review of the literature Stud Fam Plann 39 2008 18 38
5. D.V. D'Angelo, B.C. Gilbert, and R.W. Rochat Differences between mistimed and unwanted pregnancies among women who have live births Perspect Sex Reprod Health 36 2004 192 197
6. S.K. Henshaw Unintended pregnancy in the United States Fam Plann Perspect 30 1998 24 29
7. A. Bankole, and C.F. Westoff The consistency and validity of reproductive attitudes: evidence from Morocco J Biosoc Sci 30 1998 439 455
8. M.A. Koenig, R. Acharya, and S. Singh Do current measurement approaches underestimate levels of unwanted childbearing? Evidence from rural India Popul Stud 60 2006 243 256
9. R. Schoen, N. Astone, and Y. Kim Do fertility intentions affect fertility behavior? J Marriage Fam 61 1999 790
10. P.C. Tan, and N.P. Tey Do fertility intentions predict subsequent behavior? Evidence from Peninsular Malaysia Stud Fam Plann 25 1994 222 231
11. M.M. Islam, and R. Bairagi Fertility intentions and subsequent fertility behaviour in Matlab: do fertility intentions matter? J Biosoc Sci 35 2003 615 619
12. W. Miller Why some women fail to use their contraceptive method: a psychological investigation Fam Plann Perspect 18 1986 27 32
13. J. Jaccard, D.W. Helbig, and C.K. Wan Individual differences in attitude-behavior consistency: the prediction of contraceptive behavior J Appl Soc Psychol 20 1990 575 617
14. J.D. Forrest, and J.J. Frost The family planning attitudes and experiences of low-income women Fam Plann Perspect 28 1996 246 255
15. J. Sheeder, K. Tocce, and C. Stevens-Simon Reasons for ineffective contraceptive use antedating adolescent pregnancies: part 2: a proxy for childbearing intentions Matern Child Health J 13 2009 306 317
16. H. Brückner, A. Martin, and P. Bearman Ambivalence and pregnancy: adolescents' attitudes, contraceptive use and pregnancy Perspect Sex Reprod Health 36 2004 248 257
17. R. Layte, H. McGee, and K. Rundle Does ambivalence about becoming pregnant explain social class differentials in use of contraception? Eur J Public Health 17 2007 477 482
18. E.B. Schwarz, P.A. Lohr, and M.A. Gold Prevalence and correlates of ambivalence towards pregnancy among nonpregnant women Contraception 75 2007 305 310
19. L. Finer, and S. Henshaw Disparities in rates of unintended pregnancy in the United States, 1994 and 2001 Perspect Sex Reprod Health 38 2006 90
20. J.S. Santelli, B. Morrow, and J.E. Anderson Contraceptive use and pregnancy risk among U.S. high school students, 1991-2003 Perspect Sex Reprod Health 38 2 2006 106 111
21. J.N. Isaacs, and M.D. Creinin Miscommunication between healthcare providers and patients may result in unplanned pregnancies Contraception 68 2003 373 376
22. J. Trussell Contraceptive failure in the United States Contraception 70 2004 89 96
23. R.G. Potter Application of life table techniques to measurement of contraceptive effectiveness Demography 3 2 1966 297 304
24. A.K. Whitaker, and M. Gilliam Contraceptive care for adolescents Clin Obstet Gynecol 51 2 2008 268 280
25. V. Rasch Contraceptive failure-results from a study conducted among women with accepted and unaccepted pregnancies in Denmark Contraception 66 2 2002 109 116
26. H. Fu, J.E. Darroch, and T. Haas Contraceptive failure rates: new estimates from the 1995 National Survey of family growth Fam Plann Persp 31 2 1999 56 63
27. R.K. Jones, J.E. Darroch, and S.K. Henshaw Contraceptive use among U.S. women having abortions in 2000-2001 Perspect Sex Reprod Health 34 2002 294 303
28. A. Parkes, D. Wight, and M. Henderson Contraceptive method at first sexual intercourse and subsequent pregnancy risks: findings from a secondary analysis of 16 year old girls from the 'Ripple and Share' studies J Adolesc Health 44 1 2009 555 563
29. H. Wielandt, J. Boldsen, and L.B. Knudsen The prevalent use of contraception among teenagers in Denmark and the corresponding low pregnancy rate J Biosoc Sci 34 1 2002 11
30. M.J. Rosenberg, M.S. Burnhill, and M.S. Waugh Compliance and oral contraceptives: a review Contraception 52 3 1995 137 141
31. D.K. Kaye, F.M. Mirembe, and G. Bantebya Domestic violence as risk factor for unwanted pregnancy and induced abortion in Mulago Hospital, Kampala, Uganda Trop Med Int Health 11 2006 90 101
32. J. Trussel Understanding contraceptive failure Best Pract Res Clin Obstet Gynaecol 23 2 2009 199 209
33. J. Trussell, J. Strickler, and B. Vaughan Contraceptive efficacy of the diaphragm, the sponge and the cervical cap Fam Plann Persp 25 1993 100 105
34. D.I. Ree, L.M. Argys, and S.L. Averett New evidence on the relationship between substance use and adolescent sexual behaviour J Health Econ 20 5 2001 835 845
35. J.E. Anderson, and T.E. Mueller Trends in sexual risk behavior and unprotected sex among high school students, 1991-2005: the role of substance use J Sch Health 78 2008 575 580
36. R.A. Clark, and K. Theall Population-based study evaluating association between selected antiretroviral therapies and potential oral contraceptive failure J Acquir Immune Defic Syndr 37 1 2004 1219 1220
37. M.M. Goodwin, J.A. Gazmararian, and C.H. Johnson Pregnancy intendedness and physical abuse around the time of pregnancy: findings from the pregnancy risk assessment monitoring system, 1996-1997. PRAMS Working Group. Pregnancy Risk Assessment Monitoring System Matern Child Health J 4 2000 85 92
38. S.M. Cripe, S.E. Sanchez, and M.T. Perales Association of intimate partner physical and sexual violence with unintended pregnancy among pregnant women in Peru Int J Gynaecol Obstet 100 2008 104 108
39. W. Gao, J. Paterson, and S. Carter Intimate partner violence and unplanned pregnancy in the Pacific Islands Families Study Int J Gynaecol Obstet 100 2008 109 115
40. E.G. Krug, L.L. Dahlberg, J.A. Mercy, World report on violence and health 2002 World Health Organization Geneva
41. R. Stephenson, M.A. Koenig, and R. Acharya Domestic violence, contraceptive use, and unwanted pregnancy in rural India Stud Fam Plann 39 2008 177 186
42. K. Kost, S. Singh, and B. Vaughan Estimates of contraceptive failure from the 2002 national survey of family growth Contraception 77 1 2008 10 21
43. J.C. Konje, and O.A. Ladipo Barriers to uptake and use of modern methods of contraception in developing countries Int J Gynaecol Obstet 65 1999 287 294
44. J. Bitzer [Contraceptive compliance - why is contraceptive failure still so frequent?] Ther Umsch 66 2009 137 143
45. J.J. Frost, and J.E. Darroch Factors associated with contraceptive choice and inconsistent method use, United States, 2004 Perspect Sex Reprod Health 40 2008 94 104
46. X. Hu, L. Cheng, and X. Hua Advanced provision of emergency contraception to postnatal women in China makes no difference in abortion rates: a randomized controlled trial Contraception 72 2005 111 116
47. T.R. Raine, C.C. Harper, and C.H. Rocca Direct access to emergency contraception through pharmacies and effect on unintended pregnancy and STIs: a randomized controlled trial J Am Med Assoc 293 2005 54 62
48. L. Leeman Medical barriers to effective contraception Obstet Gynecol Clin North Am 34 2007 19 29
49. J.J. Frost Trends in US women's use of sexual and reproductive health care services, 1995-2002 Am J Public Health 98 2008 1814 1817
50. L.M. Palanivelu, and A. Oswal Contraceptive practices in women with repeat termination of pregnancies J Obstet Gynaecol 27 2007 832 834
51. M. Kottke, and C. Cwiak Nondaily contraceptive options user benefits, potential for high continuation, and counseling issues Obstet Gynecol Surv 63 2008 661 668
52. I. Mavranezouli, and L.G.D. Group The cost-effectiveness of long-acting reversible contraceptive methods in the UK: analysis based on a decision-analytic model developed for a National Institute for Health and Clinical Excellence (NICE) clinical practice guideline Hum Reprod 23 2008 1338 1345
53. J.L. Barden-O'Fallon, I.S. Speizer, and J.S. White The association between contraceptive discontinuation and pregnancy intentions in Guatemala Rev Pan Am Salud Pública 23 6 2008 410 417
54. H. Bruckner, A. Martin, and P.S. Bearman Ambivalence and pregnancy: adolescents' attitudes, contraceptive use and pregnancy Perspect Sex Reprod Health 36 2004 248 257
55. J.D. Smith, and D. Oakley Why do women miss oral contraceptive pills? Analysis of women's self dedicated reasons for missed pill J Midwifery Womens Health 50 2005 380 385
56. M.J. Rosenberg, M.S. Waugh, and S. Long Unintended pregnancies and use, misuse, and discontinuation of oral contraceptives J Reprod Med 40 5 1995 355 360
57. A.E. Burke, and P.D. Blumenthal Successful use of oral contraceptives Semin Reprod Med 19 4 2001 313 321
58. N. Ranjit, A. Bankole, and J.E. Darroch Contraceptive failure in the first two years of use: differences across socioeconomic subgroups Fam Plann Perspect 33 2001 19 27
59. C. Westhoff, S. Heartwell, and S. Edward Initiation of oral contraceptive pills using quick start compared with a conventional start: a randomised control study Obstet Gynecol 109 2007 1270 1276
60. D.G. Foster, R. Parvatanani, and H. Thiel de Bocanegra Number of oral contraceptive pill packages dispensed, method continuation and costs Obstet Gynecol 108 2006 1107 1114
61. G. Bachmann, P.J. Sulak, and C. Sampson-Landers Efficacy and safety of a low dose 24-day combined oral contraceptive containing 20 μg ethinylestradiol and 3 mg drospirenone Contraception 70 2004 191 198
62. C. Fenton, K. Wellington, and M.D. Moen Drospirenone/ethinylestradiol 3 mg/20 microg (24/4 day regimen): a review of its use in contraception, premenstrual dysphoric disorder and moderate acne vulgaris Drugs 67 12 2007 1749 1765
63. V.J. Holt, K.L. Cushing-Haugen, and J.R. Daling Body weight and risk of oral contraceptive failure Obstet Gynecol 99 2002 820 827
64. R.T. Burkman, A.C. Fisher, and G.J. Wan Association between efficacy and body weight or body mass index for two low-dose oral contraceptives Contraception 79 2009 424 427
65. L.R. Huber, C.J. Hogue, and A.D. Stein Contraceptive use and discontinuation: findings from the contraceptive history, initiation and choice study Am J Obstet Gynecol 194 2006 1290 1295
66. D.F. Archer, V. Cullins, and G.W. Creasy The impact of improved compliance with a weekly contraceptive transdermal system (Ortho Evra(R)) on contraceptive efficacy Contraception 69 3 2004 189 195
67. M. Zieman, J. Gullebaud, and E. Weisberg Contraceptive efficacy & cycle control with the Ortho Evra TD system: the analyses of pooled data Fertil Steril 77 Suppl. 2 2002 515 518
68. K. Oddsson, B. Leifels-Fischer, and N.R. de Melo Efficacy and safety of a contraceptive vaginal ring (NuvaRing) compared with a combined oral contraceptive: a 1-year randomized trial Contraception 71 2005 176 182
69. R. Bjarnadottir, M. Tuppurainen, and S. Killick Comparison of cycle control with a combined contraceptive vaginal ring and oral levonorgestrel/ ethinyl estradiol Am J Obstet Gynecol 186 2002 389 395
70. V. Bruni, V. Pontello, and S. Luisi An open-label, multicentre trial to evaluate the vaginal bleeding pattern of the combined contraceptive vaginal ring NuvaRing Eur J Obstet Gynecol 139 2008 65 71
71. FSRH Clinical Effectiveness Unit. Progestogen only pills. Nov 2008 ISSN 1755-103X.
72. M.P. Vessey, M. Lawless, and D. Yeats Findings in a large prospective study with special reference to effectiveness Br J Fam Plann 10 1985 117 121
73. Collaborative study group on the desogestrel containing progestogen only pill A double-blind study comparing the contraceptive efficacy, acceptability and safety of two POPs containing desogestrel 75 lig/day or levonorgestrel 30/lig/day Eur J Contracept Reprod Health Care 3 1998 169 178
74. Task force on long-acting systemic agents for fertility regulation Special programme of researth DaRTiHR. Multinational comparative trial of long-acting injectable contraceptives: northisterone enanthate given in two dosage regimens and DMPA. Final report Contraception 28 1983 1 20
75. S. Chinnatamby A comparison of the long-acting contraceptive agents norethisterone enanthate and medroxy progesterone acetate Aust NZ J Obstet Gynecol 11 1971 233 336
76. C. Sekadde-Kgondu, E.G. Mwathe, and J.K. Ruminjo Acceptability and discontinuation of Depo-Provera, IUCD and combined pill in Kenya East Afr Med J 73 1996 786 794
77. R. French, H. Van Vliet, and F. Cowan Hormonally impregnated intrauterine systems versus other forms of reversible contraceptives as effective methods of preventing pregnancy Cochrane Database Syst Rev 2004 (3): CDOO1776
78. Nice Larc: the effective and appropriate use of long acting reversible contraceptives www.nice.org.uk/pdf/CG30fullguideline.pdf 2005 [Accessed 01.07.09]
79. M. Harrison-Woolrych, and R. Hill Unintended pregnancies with the etonogestrel implant: a case series from post-marketing experience in Australia Contraception 71 4 2005 306 308
80. O. Graesslin, and T. Korver The contraceptive efficacy of Implanon: a review of clinical trials and marketing experience Eur J Contracept Reprod Health Care 13 Suppl. 1 2008 4 12
81. A. Glasier Implantable contraceptives for women: effectiveness, discontinuation rates, return of fertility and outcome of pregnancies Contraception 65 1 2002 29 37
82. S. Pinjaroen, O. Krisanapan, and W. Benjawang Ten years of experience with Norplant implantation in Southern Thailand Contraception 73 4 2006 356 360
83. F. Lakha, and A. Glasier Continuation rates of Implanon in the UK: data from an observational study in a clinical setting Contraception 74 2006 287 289
84. J. Bitzer, S. Tschudin, J. Alder Swiss Implanon Study Group Acceptability and side-effects of Implanon in Switzerland: a retrospective study by the Implanon Swiss Study Group Eur J Contracept Reprod Health Care 9 4 2004 278 284
85. G. Penney, S. Brechin, and A. de Souza The copper intrauterine device as long-term contraception J Fam Plann Reprod Health Care 30 1 2004 29 41
86. T. Haugan, F.E. Skjeldestad, and L.E. Halvorsen A randomised trial on the clinical performance of Nova T380 and Gyne T380 Slimline Cu IUD's Contraception 75 3 2007 171 176
87. R. Kulier, P. O'Brien, and F. Helmorhorst Copper containing framed IUD for contraception Cochrane Database Syst Rev 2007 (4): CD005347
88. T. Backman Benefit-risk assessment of the levonorgestrel intra-uterine system in contraception Drug Saf 27 15 2004 1185 1204
89. G. Benagiano, H. Gabelnick, and M. Farns Contraceptive devices: intravaginal and intrauterine delivery systems Exp Rev Med Devices 5 5 2008 639 654
90. R. French, H. Van Vliet, and F. Cowan Hormonally impregnated intrauterine systems versus other forms of reversible contraceptives as effective methods of preventing pregnancy Cochrane Database Syst Rev 2004 (3): CDOO1776
91. Nelson A, Frezieres RG, Walsh T et-al. Phase II/III contraceptive efficacy trial comparing male latex condoms and a male non-latex condom. Final report. N01-HD-7 3275 2001 (unpublished data).
92. R.G. Frezieres, T. Walsh, and A.L. Nelson Evaluation of the efficacy of a polyurethane condom: results from a randomised controlled clinical trial Fam Plann Perspect 31 1999 81 87
93. M.M. Ali, J. Cleland, and I.H. Shah Condom use within marriage: a neglected HIV intervention Bull WHO 82 3 2004 180 186
94. C. Lewis, C. Wood, and S. Randall Unplanned pregnancy: is contraceptive failure predictable? Br J Fam Plann 22 1 1996 16 19
95. D.A. Grimes, and K.F. Schulz Surrogate end points in clinical research- hazardous to your health Obstet Gynecol 105 2005 1114 1118
96. M.F. Gallo, D.A. Grimes, and L.M. Lopez Non-latex vs latex male condoms for contraception Cochrane Database Syst Rev 2006 (1): CD003550
97. M.A. Kuyoh, C. Toroitich-Ruto, and D.A. Grimes Sponge vs diaphragm for contraception: a Cochrane review Contraception 67 2003 15 18
98. A. Kazi, K.I. Kennedy, and C.M. Visness Effectiveness of the LAM method in Pakistan Fertil Steril 54 1996 55 57
99. R. Ramos, K.I. Kennedy, and C.M. Visness Effectiveness of lactational amenorrhoea method in prevention of pregnancy in Manila, The Philippines: non comparative prospective trial BMJ 313 1996 909 912
100. D. Wang, I. Diamond, and S.L. Curtis Contraceptive failure and its subsequent effects in China: a two stage event history analysis Asia-Pac Popul J 13 1 1998 45 64
101. D. Mansour Copper IUD and Lng IUS compared with tubal occlusion Contraception 75 6 Suppl. 2007 S144 S151
102. L.A. Cook, A. Pun, and H. van Vliet Scalpel versus no-scalpel incision for vasectomy Cochrane Database Syst Rev 2007 (2):CD004112
103. E. Raymond, D. Taylor, and J. Trussel Minimum effectiveness of the levonorgestrel regimen of emergency contraception Contraception 69 2004 79 81
104. U. Zhou, and B. Xiao Emergency contraception with multiload CU375 SL IUD; a multicentre clinical trial Contraception 64 2001 107 111