{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T08:56:09Z","timestamp":1792572969914,"version":"4.5.0"},"reference-count":14,"publisher":"BMJ","issue":"7157","license":[{"start":{"date-parts":[[1998,8,22]],"date-time":"1998-08-22T00:00:00Z","timestamp":903744000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.bmj.com\/company\/legal-information\/terms-conditions\/legal-information\/tdm-licencepolicy"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ"],"accepted":{"date-parts":[[1998,5,13]]},"published-print":{"date-parts":[[1998,8,22]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    <jats:bold>Objectives<\/jats:bold>\n                    : To investigate the impact of the postcoital test on the pregnancy rate among subfertile couples and on the number of other diagnostic tests and treatments.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Design<\/jats:bold>\n                    : Randomised controlled study.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Setting<\/jats:bold>\n                    : A university and two non-university teaching hospitals in the Netherlands.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Subjects<\/jats:bold>\n                    : New couples at infertility clinics, 1 March 1993 to 1 October 1995; randomisation to an intervention group (series of infertility investigations that include the postcoital test) or to a control group (series excluding the test).\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Main outcome measure<\/jats:bold>\n                    : Cumulative pregnancy rate.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Results<\/jats:bold>\n                    : Of 736 consecutive new couples, 444 fulfilled the inclusion criteria and consented to participate (intervention group, 227; control group, 217). Treatment was given more often in the intervention group than in the control group (54% v 41%; difference 13% (95% confidence interval 4% to 22%)). Yet cumulative pregnancy rates at 24 months in the intervention group (49% (42% to 55%)) and the control group (48% (42% to 55%)) were closely similar (difference 1% (\u22129.0% to 9.0%)).\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Conclusion<\/jats:bold>\n                    : Routine use of the postcoital test in infertility investigations leads to more tests and treatments but has no significant effect on the pregnancy rate.\n                  <\/jats:p>","DOI":"10.1136\/bmj.317.7157.502","type":"journal-article","created":{"date-parts":[[2011,10,31]],"date-time":"2011-10-31T17:43:09Z","timestamp":1320082989000},"page":"502-505","source":"Crossref","is-referenced-by-count":74,"title":["Effectiveness of the postcoital test: randomised controlled trial"],"prefix":"10.1136","volume":"317","author":[{"given":"S","family":"Guid Oei","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frans M","family":"Helmerhorst","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kitty W M","family":"Bloemenkamp","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frederieke A M","family":"Hollants","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Debbie E M","family":"Meerpoel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc J N","family":"Keirse","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[1998,8,22]]},"reference":[{"key":"2025122209334027000_317.7157.502.1","unstructured":"Sims JM .Clinical notes on uterine surgery (withs pecial reference to the management of the sterile condition). 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