159.Segundo K. R. Davis e S. C. Weller a percentagem de falha e de 13%. The effectiviness of Condoms in Reducing Heterossexually Transmission of HIV. In Fan Plan Perspectives. 31(1999) 6, 272-279.J. Mann T.C. Quinn P. Piot N. Bosenge Nzilambi M. Kalala H. Francis R.L. Colebunders R. Byers. Kma Azila N. Kabeya J.W Curran, Condom Use and HIV Infection among Prostitutes inZaire, in NEJM 316(1987)6, 325;N. Nzila M. Laga M.A. Thiam K. Mayimona B. Edidi E. Van Dyck F. Behets S. Hassig A. Nelson K. Mokwa R.L. Ashley P. Piot R.W. Ryder, HIV and Other Sexually Transmitted Diseases among Female Prostitutes in Kinshasa, in AIDS 5(1991)6, 715-721.A. Johnson, Feedback from the Six International AIDS Conference, San Francisco 1990, in Genitourinary Medicine 67(1991)2, 162-171, in particolare 162-163.M. Laga M. Alary N. Nzila A.T. Manoka M. Tuliza F. Behets J. Goemm M .STLouis P. Piot, Condom Promotion, Sexually Transmitted Diseases Treatment, and Declining Incidence of HIV-1 Infection in Female Zairian Sex Workers, in Lancet 344(1994)8917, 246-248.E.N. Ngugi J.N. Simonsen M. Bosire A.R. Ronald F.A. Plummer D.W Cameron P. Waiyaki J.O. Ndinya-Achola, Prevention of Transmission of Human Immunodericiency Virus in Africa: Effectiveness of Condom Promotion and Health Education among Prostitutes, in Lancet 2(1988)8616, 887-890.R.S. Hannenberg- W Rojanapithayakorn P. Kunasol D.C. Sokal., Impact of Thailand s HIV Control Programme as Indicated by the Decline of Sexually Transmitted Diseases, in Lancet 344 (1994) 8917.16 Do site www.vidahumana.org1) Percentagem de falha da camisinha para evitar a gravidez:a) 9.8 a18.5%: Harlap et al. Preventig Pregnancy, Protecting Health ,Alan Guttmacher Institute, 1991, p.35.b) 14 a 16%: Jones & Forrest. Contraceptive Failure in theUnited States Family Planning Perspectives 21(3): 103-109. 1989.c) 12%:U.S. Dept. HHS. Your Contraceptive Choices For Now, For later, Family Life Information Exchange,Bethesda, MD.d) 18.4%: Mulher menor de 18 anos no primeiro ano de uso do preservativo. Grady et al. Contraceptive Failure in theU.S. Family Plannig Perspectives 18(5): 204-207. 1986.e) 10 a 20%: McCoy & Wibblesman. The New Teenage Body Book. The Body Press,Los Angeles, 1987, p.210.f) 10%: Seligman & Gesnell. A Warning to Women on AIDS Newsweek, 31 de agosto, 1987, p.12.g) 3 a15%: Kolata. Birth Control New York Times Health, 12 de janeiro, 1989.Se se considera que a mulher e fertil de 6 a 10 dias por ciclo, a percentagem de falha e de 21 a 36%.2) Indice de falha do preservativo em homossexuais:a) 26%: 11% se rompe, 15% se solta. Wegersna & Oud., Safety and Acceptability of Condoms for Use by Homosexual Man as a Prophylactic Against Transmission of HIV During Anogenital Sexual Intercourse. British Medical Journal. 11 de julho, 1987, p.94.b) 30%: Pollner. Experts Hedge on Condom Value, Medical World News, 28 de agosto, 1988, p.60.3) Percentagem de falha do preservativo em usuarios habituais:a) 10%: 1/10 esposas de portadores de HIV que reportam o uso habitual do preservativo ficaram infectadas. Fischl. Evaluation of Heterosexual Partners, Children and Household Contacts of Adults with AIDS, Journal of the American Medical Association, 257: 640-644, 1987.b) 17%: Goerdent. What Is Safe Sex?New England Journal of Medicine, 316 (21): 1339-1342, 1987.Fonte: Site do Prof. Felipe AquinoO texto que se segue,