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The mothers were followed\u2010up yearly for purchases of benzodiazepines, starting 4\u2009years before the child's birth and continuing up to the child's 7th birthday. BZD purchases in different mother groups were compared using negative binomial hurdle models.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Findings<\/jats:title>\n                    <jats:p>The five mother types identified by LCA were mothers with substance abuse (1%), mothers with psychiatric disorders (1%), mothers with a risk of social marginalization (11%), mothers with minor social problems (18%) and mothers with no identified problems (69%; the comparison group). Mothers with substance abuse problems had the highest odds of purchasing BZDs [odds ratio OR\u2009=\u200927.5, 95%CI\u2009=\u200922.9\u201033.0; RR\u2009=\u200920.2, 95%CI\u2009=\u200914.9\u201027.3. The change in time was similar in all groups: the probability of purchasing and the number of purchases were lowest during pregnancy and the year of the child's birth.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In Finland, among mothers of young children, prevalence of benzodiazepine use is reduced during pregnancy and the child's first year, and then increases as the child grows older. Mothers with substance abuse and psychiatric disorders are at particularly high risk of benzodiazepine use.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/add.12808","type":"journal-article","created":{"date-parts":[[2014,11,18]],"date-time":"2014-11-18T16:06:42Z","timestamp":1416326802000},"page":"636-643","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Benzodiazepine use among mothers of small children: a register\u2010based cohort study"],"prefix":"10.1111","volume":"110","author":[{"given":"Kirsimarja","family":"Raitasalo","sequence":"first","affiliation":[{"name":"National Institute for Health and Welfare  Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marja","family":"Holmila","sequence":"additional","affiliation":[{"name":"National Institute for Health and Welfare  Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ilona","family":"Autti\u2010R\u00e4m\u00f6","sequence":"additional","affiliation":[{"name":"The Social Insurance Institution of Finland  Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaana E","family":"Martikainen","sequence":"additional","affiliation":[{"name":"The Social Insurance Institution of Finland  Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Veli\u2010Matti","family":"Sorvala","sequence":"additional","affiliation":[{"name":"National Institute for Health and Welfare  Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pia","family":"M\u00e4kel\u00e4","sequence":"additional","affiliation":[{"name":"National Institute for Health and Welfare  Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,1,9]]},"reference":[{"key":"e_1_2_8_2_1","unstructured":"World Health Organization (WHO).Principles of drug dependence treatment\u2014discussion paper. 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