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Fertility Awareness Effectiveness

Use-effectiveness and analysis of satisfaction levels with the Billings Ovulation Method: two-year pilot study

Klaus H, Goebel J, Woods RE, Castles M, Zimny G

Published October 1977 Fertility and sterility
DOI 10.1016/s0015-0282(16)42851-7 PMID 908444

Abstract

A 2-year study of 135 women using the Billings Ovulation Method as their method of family planning is reported. There were 1381 exposure cycles during the 1st year and 580 during the 2nd year. The total conception rates were 1.303 for the 1st year and 1.896 for the 2nd year. If one subtract the user failures from these rates, the biologic failure rates are 0.072 for the 1st year and 0.517 for the 2nd year. The continuation rate is 51.8%. An analysis of satisfaction levels is presented with a discussion of possible underlying emotional factors.

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Fertility Awareness › Effectiveness › Typical and Perfect Use
PMID 908444 908444 DOI 10.1016/s0015-0282(16)42851-7 10.1016/s0015-0282(16)42851-7 Klaus et al. 1977, Klaus 1977

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