Seasonal variation in spontaneous abortion

ABSTRACT

Spotaneous abortion can be defined as the termination of previable conception through natural causes. The aim of this work was to estimate the spontaneous abortion rate as well as to find out if there is any seasonal variation in this estimate, untilizing data of the child health care in primary health care centers in dammam, saudi arabia in the years 1986, 1987 and 1988. The study showed significant periodic changes of the average monthly spontaneous abortion rate, with peak to low ratio 2.6399 and expected between May and June. This finding maybe due to increase in recreational activities during this period of the year. Further researches are highly recommended to reveal the possible real cause leading to this high rate of spontaneous abortion in this period of the year.