بررسی کیفیت استفاده از قرص های ضد بارداری خوراکی در زنان مراجعه کننده به زایشگاه های شهر بیرجند در سال های 76-77

Background and purpose: The number of unintended pregnancies have been increased in many countries. Âfter other ulternative methods, oral contraceptive pills are most widely used method of contraception in Ïran and the other countries in the world. This study was conducted in order to determine the know how in contraceptive pills (continuous use, missed ones and the number of missed pills, the time interval, side effects and etc.) specially the combined form (L.D). Materials and Methods: This research was cross-sectional descriptive method done on 382 women referred to Birjand Nursing homes for delivery and had consumed oral contraceptive pills, monophasic and combined forms, at least three moths prior to the last pregnancy. To analyze the obtained results statistically, X2 test we used. Results: From the total of 382 pregnancies, 194(50.8%) were planned and 188 (49.2%) were unintended pregnancies. 65% of the unintended cases stopped using pills prior to the last pregnancy and in 69% of such cases minor side effects (changes of mood, irritability, nausea, vomiting and dizziness) were the main reason for the stoppage. 24.5% of unintended pregnancies were due to lack of knowledge about the post missed pills behaviour. 60.7% of the unintended pregnanvies who stopped the use of pills, did not use ulternative methods of contraception. 39.3% of cases after stoppage of pills for a time interral after that, used other unreliable ulternatives like withdrawal and condom for contraception. 76.4% of the cases missed one or more pills in a box and only 43.5% followed the pill free interwal in a exact manner. Çonclusion: Ünnecessary missing of pills and unproper management after missing, are the main resons for unintended pregnancies. Finding of this research stress upon the improvement of education and consulation methods in family planning centers.