{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T00:45:32Z","timestamp":1785199532577,"version":"3.55.0"},"reference-count":1,"publisher":"BMJ","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Occup Environ Med"],"published-print":{"date-parts":[[1994,1]]},"abstract":"<jats:p>Exposure to mercury vapour or inorganic mercury compounds can impair fertility in laboratory animals. To study the effects of mercury vapour on fertility in women, eligibility questionnaires were sent to 7000 registered dental assistants in California. The final eligible sample of 418 women, who had become pregnant during the previous four years, were interviewed by telephone. Detailed information was collected on mercury handling practices and the number of menstrual cycles without contraception it had taken them to become pregnant. Dental assistants not working with amalgam served as unexposed controls. Women with high occupational exposure to mercury were less fertile than unexposed controls. The fecundability (probability of conception each menstrual cycle) of women who prepared 30 or more amalgams per week and who had five or more poor mercury hygiene factors was only 63% of that for unexposed women (95% CI 42%-96%) after controlling for covariates. Women with low exposure were more fertile, however, than unexposed controls. Possible explanations for the U shaped dose response and limitations of the exposure measure are discussed. Further investigation is needed that uses biological measures of mercury exposure.<\/jats:p>","DOI":"10.1136\/oem.51.1.28","type":"journal-article","created":{"date-parts":[[2008,12,17]],"date-time":"2008-12-17T00:14:48Z","timestamp":1229472888000},"page":"28-34","source":"Crossref","is-referenced-by-count":107,"title":["The effect of occupational exposure to mercury vapour on the fertility of female dental assistants."],"prefix":"10.1136","volume":"51","author":[{"given":"A S","family":"Rowland","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D D","family":"Baird","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C R","family":"Weinberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D L","family":"Shore","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C M","family":"Shy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A J","family":"Wilcox","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[1994,1,1]]},"reference":[{"key":"ref_1","article-title":"A linear term for year the pregnancy attempt began was included in our statistical models to control for bias that could have been introduced by trends over calendar time in the opportunity for mercury exposure.56 Time trends may induce a spurious association between individual hygiene factors and time to pregnancy. Because we sampled on a woman's most recent pregnancy, women who took a long time to become pregnant (several years) had a greater opportunity to be exposed to poor mercury hygiene practices that were more common in the past than women who became pregnant more quickly and therefore, on average, more recently","unstructured":"A linear term for year the pregnancy attempt began was included in our statistical models to control for bias that could have been introduced by trends over calendar time in the opportunity for mercury exposure.56 Time trends may induce a spurious association between individual hygiene factors and time to pregnancy. Because we sampled on a woman's most recent pregnancy, women who took a long time to become pregnant (several years) had a greater opportunity to be exposed to poor mercury hygiene practices that were more common in the past than women who became pregnant more quickly and therefore, on average, more recently."}],"container-title":["Occupational and Environmental Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/oem.51.1.28","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T13:31:26Z","timestamp":1716471086000},"score":1,"resource":{"primary":{"URL":"https:\/\/oem.bmj.com\/lookup\/doi\/10.1136\/oem.51.1.28"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,1]]},"references-count":1,"journal-issue":{"issue":"1","published-online":{"date-parts":[[1994,1,1]]},"published-print":{"date-parts":[[1994,1]]}},"alternative-id":["10.1136\/oem.51.1.28"],"URL":"https:\/\/doi.org\/10.1136\/oem.51.1.28","relation":{},"ISSN":["1351-0711","1470-7926"],"issn-type":[{"value":"1351-0711","type":"print"},{"value":"1470-7926","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,1]]}}}