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Women with SA were significantly older at menarche (Relative Risk (RR) = 3.2), more frequently married to blood-related husbands (RR = 2.1) and husbands older than 50 years (RR = 2.4). Number of previous abortions related linearly to the risk of aborting spontaneously in the next pregnancy. Compared to primigravidas, the RR was 3.2 if the outcome of the most recent pregnancy was SA, and 0.8 if it was a livebirth. A family history of SA was more common among cases (RR = 4.6). Spontaneous abortion was also associated with daily consumption of more than 150 mg of caffeine, abdominal trauma, infection and fever during pregnancy. No significant association, however, emerged with mater nal age, social class, education, exposure to video display terminals, parity, use of contraception, diabetes or obesity. The application of these data in clinical practice and future research needs are discussed.<\/jats:p>","DOI":"10.1177\/146642409411400403","type":"journal-article","created":{"date-parts":[[2007,9,18]],"date-time":"2007-09-18T13:36:39Z","timestamp":1190122599000},"page":"188-193","source":"Crossref","is-referenced-by-count":23,"title":["Risk Factors for Spontaneous Abortion: A Preliminary Study on Saudi Women"],"prefix":"10.1177","volume":"114","author":[{"given":"Lubna A.","family":"Al-Ansary","sequence":"first","affiliation":[{"name":"Department of Family and Community Medicine, College of Medicine, King Saud University, PO Box 2925, Riyadh 11461, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zainab A.","family":"Babay","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, College of Medicine, King Saud University, PO Box 2925, Riyadh 11461, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1994,8,1]]},"reference":[{"key":"atypb1","volume-title":"'Symposium on the medical genetics in the setting of Middle East populations'","author":"Al-Husain M."},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.1159\/000110316"},{"key":"atypb3","unstructured":"Blane D. 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