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Women's Decision-Making And Factors Affecting Their Choice Of ...

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Cochrane Database of Systematic reviews (The Cochrane collaboration 1995), the<br />

Database of Abstracts or Reviews of Effectiveness (DARE) (NHS Centre for<br />

Reviews and Dissemination 1995) and the National Health Service National<br />

Research Register (NRR), (NHS Executive 1995). The databases were checked<br />

because they publish existing and commissioned research in the area. No such<br />

review was identified.<br />

The literature search was performed in the Bath Information and Data<br />

Services (BIDS) database, using the Institute of Scientific Information (1ST)<br />

Science, ISI Social Science, EMBASE (Excerpta Medica Online) and MEDLINE<br />

(Index Medicus Online) databases. The MIDlRS midwifery database, PsychLit,<br />

and a new database, the ISI Web of Science were also searched. The Web of<br />

Science consists of three large, multidisciplinary databases of Science Citation<br />

Index, Social Sciences Citation Index, and Arts and Humanities Citation Index<br />

that may be searched individually or in any combination. All three were searched<br />

in combination. The Cochrane database, which is popular for systematic reviews<br />

of health care research was also searched, but only had a meta-analysis of the<br />

safety of home versus hospital birth, which was not relevant to the present review.<br />

The idea was to amplify the search as much as possible to avoid missing studies.<br />

The search was done for articles from the last twenty years, from 1980 or date<br />

first available until July 2000. Reference lists of all the relevant papers were also<br />

examined to identify any studies not reached via the electronic search. An<br />

Internet search was done via homebirth homepages to identify any unpublished<br />

studies.<br />

52

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