{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,24]],"date-time":"2023-10-24T07:44:48Z","timestamp":1698133488719},"reference-count":30,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,1,7]],"date-time":"2011-01-07T00:00:00Z","timestamp":1294358400000},"content-version":"vor","delay-in-days":6825,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[1992,5]]},"abstract":"<jats:p>420 pregnancies were recorded between 1962 and 1987 among 202 women working for at least one month in day nurseries during 1984. During that time 230 pregnant mothers had worked as childminders in day nurseries (\u2018exposed\u2019 pregnancies). The remaining 190 pregnancies were classified as \u2018unexposed\u2019. 27 spontaneous abortions were exposed and 7 unexposed corresponding to abortion rates of 11.7% and 3.9%, respectively, which is a significant difference. Also \u2018threatened\u2019 abortions during the first trimester of pregnancies ending up in live\u2010born children were accumulated in exposed pregnancies, and the miscarriage rate was possibly increased in unexposed pregnancies of women with their own children in day nurseries. Significant differences were not observed with regard to premature birth, congenital malformations, number of live\u2010born children and sex ratio of live\u2010born children. The cause of the increased frequency of spontaneous and \u2018threatened\u2019 abortions in exposed pregnancies could he a contagious agent.<\/jats:p>","DOI":"10.3109\/00016349209021053","type":"journal-article","created":{"date-parts":[[2007,11,13]],"date-time":"2007-11-13T19:09:20Z","timestamp":1194980960000},"page":"284-292","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Spontaneous abortions and work in day nurseries"],"prefix":"10.1111","volume":"71","author":[{"given":"Carl\u2010Johan","family":"G\u00f6the","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lena","family":"Hillert","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,1,7]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"31","article-title":"Miscarriages and work at day nurscries","volume":"30","author":"Gothe CJ","year":"1985","journal-title":"Opuscula Medica (Stockholm)"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2125.1978.tb01676.x"},{"key":"e_1_2_1_4_1","volume-title":"Modern Epidemiology","author":"Rothman KJ","year":"1986"},{"key":"e_1_2_1_5_1","volume-title":"Statistical Methods in Medical Research","author":"Armitage P.","year":"1980"},{"key":"e_1_2_1_6_1","doi-asserted-by":"crossref","first-page":"305","DOI":"10.1093\/oxfordjournals.aje.a113542","article-title":"Spontaneous ahortion and induced abortion: an adjustment for the presence of induced abortion when estimating the rate of spontaneous abortion from cross\u2010sectional studies","volume":"117","author":"Susscr E.","year":"1983","journal-title":"Am J Epidemiol"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/13.3.347"},{"key":"e_1_2_1_8_1","first-page":"51","article-title":"\u2018Sick\u2019 buildings \u2010 A problem coupled to encrgy preservation and modern building technology","volume":"35","author":"Gijthe C\u2010J","year":"1990","journal-title":"Opuscula Medica (Sthlm)"},{"key":"e_1_2_1_9_1","first-page":"244","article-title":"Choicc of control population in studies of advcrsc reproductive effects of occupational exposures and its effect on risk estimates","volume":"44","author":"Sheikh K.","year":"1987","journal-title":"Br J Ind Med"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(60)90250-7"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320300320"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.5271\/sjweh.1858"},{"key":"e_1_2_1_13_1","first-page":"542","article-title":"Effects of lead on the lemale and reproduetion: a review","volume":"43","author":"Rom W.","year":"1976","journal-title":"Mt Sinai J Med (NY)"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01274131"},{"key":"e_1_2_1_15_1","first-page":"32140","article-title":"Occupational discase among operation mom personnel. 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