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TABLE 9-4. Failure Rates and Mortality Associated with Contraceptive Techniques| Contraceptive Method | Average Failure Rate (Annual Pregnancies/100 Women) | Mortality Rate (Annual Deaths/100,000 Women) |
|---|---|---|
| None | 90 | 8.3* |
| Tubal ligation | 0.04 | 8** |
| Steroid pills | 2-2.5 | 0.9(5.2***) |
| IUD | 4 | 1.2 |
| Barrier methods | 10-15 | 1.2 |
| Coitus interruptus | 23 | 2 |
| Natural methods | 20-30 | 2 |
*Birth related.
**Surgical complications.
***Smokers.
Data for women 20-29 years old taken from Carr,B.R. and Griffin, J.E.:in Williams Textbook of Endocrinolgy,7th ed.J.D. Wilson and D.W. Foster, editors. W.B. Saunders Company, Philadelphia, 1985
