The BOM and AVOIDING PREGNANCY

 

    ~  WHO (1977-1981) Multi-centre - Auckland, Dublin,

                                                San Miguel, Bangalore and Manila

           

            Published:  Fertility and Sterility 1981 Vol 36, p. 152ff;  1981 vol 36, p.591ff.

 

                        869 women            10,215 cycles of use

                        2.2 Method related pregnancies per hundred women years in initiates

                        (2.8 when initial phase excluded)

 

 

    ~  Indian Council of Medical Research Task Force on NFP (1995)

States of Uttar Pradesh, Bihar, Rajasthan, Karnataka and Pondicherry

           

            Published:  Contraception 1996, Vol 53 pp. 69-74

 

                        2.059 women         32,957 woman months of use

0.86 Method related pregnancies per hundred women years in initiates

 

 

    ~ Jiangsu Family Health Institute, China (1997)

            Dr QIAN Shao Zhen

 

            Published:  Chinese Medical Journal 1998

 

                        1235 women 14,280 women months of use

                        No method related pregnancies in initiates

                        (5 user related pregnancies)

 

       Evidence-based method-related Pearl Index  

               for BOM is 0-2.2 p/hwy in initiates