{"id":"https://openalex.org/W1985492053","doi":"https://doi.org/10.1111/j.1471-0528.1986.tb07987.x","title":"Spontaneous early preterm labour associated with abnormal genital bacterial colonization","display_name":"Spontaneous early preterm labour associated with abnormal genital bacterial colonization","publication_year":1986,"publication_date":"1986-08-01","ids":{"openalex":"https://openalex.org/W1985492053","doi":"https://doi.org/10.1111/j.1471-0528.1986.tb07987.x","mag":"1985492053","pmid":"https://pubmed.ncbi.nlm.nih.gov/3741809"},"language":"en","primary_location":{"id":"doi:10.1111/j.1471-0528.1986.tb07987.x","doi":"https://doi.org/10.1111/j.1471-0528.1986.tb07987.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1471-0528.1986.tb07987.x","pdf_url":null,"source":{"id":"https://openalex.org/S4210173111","display_name":"BJOG An International Journal of Obstetrics & Gynaecology","issn_l":"0306-5456","issn":["0306-5456","1365-215X","1470-0328","1471-0528"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BJOG: An International Journal of Obstetrics & Gynaecology","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5063092455","display_name":"Ronnie Lamont","orcid":"https://orcid.org/0000-0001-7906-2826","observed_orcids":["https://orcid.org/0000-0001-7906-2826"]},"institutions":[{"id":"https://openalex.org/I2801748203","display_name":"Hammersmith Hospital","ror":"https://ror.org/05jg8yp15","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I153355300","https://openalex.org/I2801748203"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"R. F. LAMONT","raw_affiliation_strings":["Institute of Obstetrics and Gynaecology, Hammersmith Hospital, London"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Obstetrics and Gynaecology, Hammersmith Hospital, London","institution_ids":["https://openalex.org/I2801748203"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102895153","display_name":"DAVID TAYLOR\u2010ROBINSON","orcid":"https://orcid.org/0000-0002-2252-7933","observed_orcids":["https://orcid.org/0000-0002-2252-7933","https://orcid.org/0000-0002-5828-7724"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"D. TAYLOR\u2010ROBINSON","raw_affiliation_strings":["Clinical Research Centre, Harrow, Middlesex"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Clinical Research Centre, Harrow, Middlesex","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"M. NEWMAN","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801748203","display_name":"Hammersmith Hospital","ror":"https://ror.org/05jg8yp15","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I153355300","https://openalex.org/I2801748203"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"M. NEWMAN","raw_affiliation_strings":["Department of Bacteriology, Hammersmith Hospital, London"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Bacteriology, Hammersmith Hospital, London","institution_ids":["https://openalex.org/I2801748203"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113611390","display_name":"J. S. Wigglesworth","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801748203","display_name":"Hammersmith Hospital","ror":"https://ror.org/05jg8yp15","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I153355300","https://openalex.org/I2801748203"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"J. WIGGLESWORTH","raw_affiliation_strings":["Department of Paediatrics and Neonatal Medicine, Hammersmith Hospital, London"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Paediatrics and Neonatal Medicine, Hammersmith Hospital, London","institution_ids":["https://openalex.org/I2801748203"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111817978","display_name":"Murdoch G. Elder","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801748203","display_name":"Hammersmith Hospital","ror":"https://ror.org/05jg8yp15","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I153355300","https://openalex.org/I2801748203"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"M. G. ELDER","raw_affiliation_strings":["Institute of Obstetrics and Gynaecology, Hammersmith Hospital, London"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Obstetrics and Gynaecology, Hammersmith Hospital, London","institution_ids":["https://openalex.org/I2801748203"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5063092455"],"corresponding_institution_ids":["https://openalex.org/I2801748203"],"apc_list":{"value":5190,"currency":"USD","value_usd":5190},"apc_paid":null,"fwci":10.2776,"has_fulltext":false,"cited_by_count":109,"citation_normalized_percentile":{"value":0.98721351,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"93","issue":"8","first_page":"804","last_page":"810"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11290","display_name":"Preterm Birth and Chorioamnionitis","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11290","display_name":"Preterm Birth and Chorioamnionitis","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10428","display_name":"Reproductive tract infections research","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/2404","display_name":"Microbiology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11961","display_name":"Neonatal and Maternal Infections","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/spontaneous-preterm-labor","display_name":"spontaneous preterm labor","score":0.9049999713897705},{"id":"https://openalex.org/keywords/preterm-birth","display_name":"preterm birth","score":0.7239999771118164},{"id":"https://openalex.org/keywords/infection","display_name":"infection","score":0.6050000190734863},{"id":"https://openalex.org/keywords/mycoplasma","display_name":"Mycoplasma","score":0.8539999723434448},{"id":"https://openalex.org/keywords/chlamydiae","display_name":"Chlamydiae","score":0.9449999928474426},{"id":"https://openalex.org/keywords/ureaplasma","display_name":"Ureaplasma","score":0.9070000052452087},{"id":"https://openalex.org/keywords/anaerobic-bacteria","display_name":"anaerobic bacteria","score":0.9290000200271606},{"id":"https://openalex.org/keywords/chorioamnionitis","display_name":"chorioamnionitis","score":0.9919999837875366},{"id":"https://openalex.org/keywords/neonatal-infection","display_name":"neonatal infection","score":0.996999979019165},{"id":"https://openalex.org/keywords/rupture-of-membranes","display_name":"membrane rupture","score":0.8579999804496765},{"id":"https://openalex.org/keywords/tocolysis","display_name":"tocolysis","score":0.8040000200271606}],"concepts":[{"id":"https://openalex.org/C2777629866","wikidata":"https://www.wikidata.org/wiki/Q473739","display_name":"Chorioamnionitis","level":4,"score":0.7999922037124634},{"id":"https://openalex.org/C2779204014","wikidata":"https://www.wikidata.org/wiki/Q875679","display_name":"Chlamydiae","level":3,"score":0.7777338624000549},{"id":"https://openalex.org/C46973012","wikidata":"https://www.wikidata.org/wiki/Q28627","display_name":"Gestation","level":3,"score":0.6426767110824585},{"id":"https://openalex.org/C131872663","wikidata":"https://www.wikidata.org/wiki/Q5284418","display_name":"Obstetrics","level":1,"score":0.5848221778869629},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.5650055408477783},{"id":"https://openalex.org/C2779952448","wikidata":"https://www.wikidata.org/wiki/Q804521","display_name":"Bacterial vaginosis","level":2,"score":0.54969322681427},{"id":"https://openalex.org/C2776927270","wikidata":"https://www.wikidata.org/wiki/Q815962","display_name":"Colonization","level":2,"score":0.5294356346130371},{"id":"https://openalex.org/C2779508502","wikidata":"https://www.wikidata.org/wiki/Q5065334","display_name":"Cervical cerclage","level":4,"score":0.4889315664768219},{"id":"https://openalex.org/C183021626","wikidata":"https://www.wikidata.org/wiki/Q4620674","display_name":"Sex organ","level":2,"score":0.451656699180603},{"id":"https://openalex.org/C2776672898","wikidata":"https://www.wikidata.org/wiki/Q137110","display_name":"Ureaplasma urealyticum","level":3,"score":0.45031973719596863},{"id":"https://openalex.org/C2776279924","wikidata":"https://www.wikidata.org/wiki/Q228036","display_name":"Caesarean section","level":3,"score":0.447394996881485},{"id":"https://openalex.org/C2909217659","wikidata":"https://www.wikidata.org/wiki/Q500151","display_name":"Ureaplasma","level":3,"score":0.44728347659111023},{"id":"https://openalex.org/C2778376644","wikidata":"https://www.wikidata.org/wiki/Q2253111","display_name":"Gestational age","level":3,"score":0.4261450469493866},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.42147067189216614},{"id":"https://openalex.org/C2777831542","wikidata":"https://www.wikidata.org/wiki/Q537478","display_name":"Vaginal flora","level":3,"score":0.4206688702106476},{"id":"https://openalex.org/C29456083","wikidata":"https://www.wikidata.org/wiki/Q1221899","display_name":"Gynecology","level":1,"score":0.3397521376609802},{"id":"https://openalex.org/C2778838687","wikidata":"https://www.wikidata.org/wiki/Q210975","display_name":"Mycoplasma","level":2,"score":0.2615504264831543},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.2294367551803589},{"id":"https://openalex.org/C2777391075","wikidata":"https://www.wikidata.org/wiki/Q131065","display_name":"Chlamydia trachomatis","level":2,"score":0.1616479456424713},{"id":"https://openalex.org/C89423630","wikidata":"https://www.wikidata.org/wiki/Q7193","display_name":"Microbiology","level":1,"score":0.14970815181732178},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D001419","descriptor_name":"Bacteria","qualifier_ui":"Q000302","qualifier_name":"isolation & purification","is_major_topic":true},{"descriptor_ui":"D002692","descriptor_name":"Chlamydia trachomatis","qualifier_ui":"Q000302","qualifier_name":"isolation & purification","is_major_topic":false},{"descriptor_ui":"D002821","descriptor_name":"Chorioamnionitis","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005836","descriptor_name":"Genitalia, Female","qualifier_ui":"Q000382","qualifier_name":"microbiology","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007752","descriptor_name":"Obstetric Labor, Premature","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":true},{"descriptor_ui":"D009174","descriptor_name":"Mycoplasma","qualifier_ui":"Q000302","qualifier_name":"isolation & purification","is_major_topic":false},{"descriptor_ui":"D011247","descriptor_name":"Pregnancy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011446","descriptor_name":"Prospective Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D014509","descriptor_name":"Ureaplasma","qualifier_ui":"Q000302","qualifier_name":"isolation & purification","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1111/j.1471-0528.1986.tb07987.x","doi":"https://doi.org/10.1111/j.1471-0528.1986.tb07987.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1471-0528.1986.tb07987.x","pdf_url":null,"source":{"id":"https://openalex.org/S4210173111","display_name":"BJOG An International Journal of Obstetrics & Gynaecology","issn_l":"0306-5456","issn":["0306-5456","1365-215X","1470-0328","1471-0528"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BJOG: An International Journal of Obstetrics & Gynaecology","raw_type":"journal-article"},{"id":"pmid:3741809","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/3741809","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"British journal of obstetrics and gynaecology","raw_type":"Comparative Study"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":1.0}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W118423726","https://openalex.org/W1541437882","https://openalex.org/W1972686843","https://openalex.org/W1976674406","https://openalex.org/W1991200510","https://openalex.org/W1995828683","https://openalex.org/W2060385482","https://openalex.org/W2086023915","https://openalex.org/W2145345908","https://openalex.org/W2270157969","https://openalex.org/W2418300847","https://openalex.org/W2419478286"],"related_works":["https://openalex.org/W2029973601","https://openalex.org/W2416697987","https://openalex.org/W2146503955","https://openalex.org/W4399788531","https://openalex.org/W1969837059","https://openalex.org/W7053477444","https://openalex.org/W3011577508","https://openalex.org/W4254162990","https://openalex.org/W2061315868","https://openalex.org/W2093277404"],"abstract_inverted_index":{"The":[0,37,112],"association":[1],"between":[2,16,155],"infection":[3,56,100],"and":[4,18,22,47,52,57,73,101,107,157],"preterm":[5,14,95,110],"labour":[6,15,96],"was":[7,44,59],"studied":[8,45],"in":[9,12,23,81],"72":[10],"women":[11],"spontaneous":[13],"26":[17,24,156],"34":[19,158],"weeks":[20,159],"gestation":[21],"control":[25],"subjects":[26],"having":[27],"an":[28],"elective":[29],"caesarean":[30],"section":[31],"at":[32],"the":[33,65,82,87,120,123,133,137,147,163],"same":[34],"gestational":[35],"age.":[36],"genital":[38],"microbial":[39],"flora":[40],"of":[41,67,71,93,109,115,122,127,139,149,165],"each":[42],"group":[43],"comprehensively":[46],"included":[48],"mycoplasmas,":[49],"chlamydiae,":[50],"ureaplasmas":[51],"anaerobes.":[53],"Subsequent":[54],"neonatal":[55],"chorioamnionitis":[58,74],"also":[60],"studied.":[61],"Abnormal":[62],"bacterial":[63,153],"colonization,":[64],"presence":[66,124],"ureaplasmas,":[68],"heavy":[69],"growth":[70],"mycoplasmas":[72],"were":[75],"all":[76],"found":[77],"significantly":[78],"more":[79],"often":[80],"study":[83],"group.":[84],"This":[85],"supports":[86],"premise":[88],"that":[89],"a":[90],"significant":[91],"proportion":[92],"idiopathic":[94],"is":[97,160],"associated":[98],"with":[99,144],"this":[102],"may":[103],"permit":[104],"better":[105],"prediction":[106],"prevention":[108],"birth.":[111],"continued":[113],"use":[114],"tocolytics":[116],"should":[117],"depend":[118],"upon":[119],"identification":[121],"or":[125,151],"absence":[126],"infection.":[128],"Infection":[129],"appeared":[130],"to":[131,146],"be":[132],"result":[134],"rather":[135],"than":[136],"cause":[138],"ruptured":[140],"membranes.":[141],"A":[142],"recommendation":[143],"respect":[145],"classification":[148],"abnormal":[150],"normal":[152],"colonization":[154],"suggested":[161],"on":[162],"basis":[164],"strict":[166],"criteria.":[167]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-06T12:05:46.655746","created_date":"2016-06-24T00:00:00"}