{"id":"https://openalex.org/W2474049385","doi":"https://doi.org/10.1159/000447557","title":"Perinatal Advantages and Disadvantages of Being Underweight before Pregnancy: A Population-Based Study","display_name":"Perinatal Advantages and Disadvantages of Being Underweight before Pregnancy: A Population-Based Study","publication_year":2016,"publication_date":"2016-07-06","ids":{"openalex":"https://openalex.org/W2474049385","doi":"https://doi.org/10.1159/000447557","mag":"2474049385","pmid":"https://pubmed.ncbi.nlm.nih.gov/27384775"},"language":"en","primary_location":{"id":"doi:10.1159/000447557","doi":"https://doi.org/10.1159/000447557","is_oa":false,"landing_page_url":"https://doi.org/10.1159/000447557","pdf_url":null,"source":{"id":"https://openalex.org/S207793224","display_name":"Gynecologic and Obstetric Investigation","issn_l":"0378-7346","issn":["0378-7346","1423-002X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310317820","host_organization_name":"Karger Publishers","host_organization_lineage":["https://openalex.org/P4310317820"],"host_organization_lineage_names":["Karger Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Gynecologic and Obstetric Investigation","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5059320463","display_name":"Andreja Trojner Bregar","orcid":"https://orcid.org/0000-0002-0196-2856","observed_orcids":["https://orcid.org/0000-0002-0196-2856"]},"institutions":[{"id":"https://openalex.org/I2801323708","display_name":"Ljubljana University Medical Centre","ror":"https://ror.org/01nr6fy72","country_code":"SI","type":"healthcare","lineage":["https://openalex.org/I2801323708"]}],"countries":["SI"],"is_corresponding":false,"raw_author_name":"Andreja Trojner Bregar","raw_affiliation_strings":["Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia","institution_ids":["https://openalex.org/I2801323708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054787060","display_name":"Isaac Blickstein","orcid":"https://orcid.org/0000-0002-0985-7436","observed_orcids":["https://orcid.org/0000-0002-0985-7436"]},"institutions":[{"id":"https://openalex.org/I2800052317","display_name":"Kaplan Medical Center","ror":"https://ror.org/00t0n9020","country_code":"IL","type":"healthcare","lineage":["https://openalex.org/I2800052317","https://openalex.org/I64767286"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Isaac Blickstein","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Kaplan Medical Center, Rehovot, and"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Kaplan Medical Center, Rehovot, and","institution_ids":["https://openalex.org/I2800052317"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067004099","display_name":"Gabrijela Br\u017ean \u0160imenc","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801323708","display_name":"Ljubljana University Medical Centre","ror":"https://ror.org/01nr6fy72","country_code":"SI","type":"healthcare","lineage":["https://openalex.org/I2801323708"]}],"countries":["SI"],"is_corresponding":false,"raw_author_name":"Gabrijela Br\u017ean \u0160imenc","raw_affiliation_strings":["Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia","institution_ids":["https://openalex.org/I2801323708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066348315","display_name":"Vid Jan\u0161a","orcid":"https://orcid.org/0000-0002-5682-2180","observed_orcids":["https://orcid.org/0000-0002-5682-2180"]},"institutions":[{"id":"https://openalex.org/I2801323708","display_name":"Ljubljana University Medical Centre","ror":"https://ror.org/01nr6fy72","country_code":"SI","type":"healthcare","lineage":["https://openalex.org/I2801323708"]}],"countries":["SI"],"is_corresponding":false,"raw_author_name":"Vid Jan\u0161a","raw_affiliation_strings":["Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia","institution_ids":["https://openalex.org/I2801323708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062210606","display_name":"Ivan Verdenik","orcid":"https://orcid.org/0000-0001-6249-5799","observed_orcids":["https://orcid.org/0000-0001-6249-5799"]},"institutions":[{"id":"https://openalex.org/I2801323708","display_name":"Ljubljana University Medical Centre","ror":"https://ror.org/01nr6fy72","country_code":"SI","type":"healthcare","lineage":["https://openalex.org/I2801323708"]}],"countries":["SI"],"is_corresponding":false,"raw_author_name":"Ivan Verdenik","raw_affiliation_strings":["Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia","institution_ids":["https://openalex.org/I2801323708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074596478","display_name":"Miha Lu\u010dovnik","orcid":"https://orcid.org/0000-0003-2708-9175","observed_orcids":["https://orcid.org/0000-0003-2708-9175"]},"institutions":[{"id":"https://openalex.org/I2801323708","display_name":"Ljubljana University Medical Centre","ror":"https://ror.org/01nr6fy72","country_code":"SI","type":"healthcare","lineage":["https://openalex.org/I2801323708"]}],"countries":["SI"],"is_corresponding":false,"raw_author_name":"Miha Lu\u010dovnik","raw_affiliation_strings":["Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia","institution_ids":["https://openalex.org/I2801323708"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064311324","display_name":"Nata\u0161a Tul","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801323708","display_name":"Ljubljana University Medical Centre","ror":"https://ror.org/01nr6fy72","country_code":"SI","type":"healthcare","lineage":["https://openalex.org/I2801323708"]}],"countries":["SI"],"is_corresponding":false,"raw_author_name":"Nata\u0161a Tul","raw_affiliation_strings":["Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Obstetrics and Gynecology, Department of Perinatology, University Medical Centre, Ljubljana, Slovenia","institution_ids":["https://openalex.org/I2801323708"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.233,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.86699485,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"82","issue":"3","first_page":"303","last_page":"306"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10673","display_name":"Gestational Diabetes Research and Management","score":0.9125999808311462,"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/T10673","display_name":"Gestational Diabetes Research and Management","score":0.9125999808311462,"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/T11629","display_name":"Birth, Development, and Health","score":0.031099999323487282,"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"}},{"id":"https://openalex.org/T12741","display_name":"Maternal and Neonatal Healthcare","score":0.03099999949336052,"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/pre-pregnancy-underweight","display_name":"pre-pregnancy underweight","score":0.8529999852180481},{"id":"https://openalex.org/keywords/maternal-bmi","display_name":"maternal body mass index","score":0.8709999918937683},{"id":"https://openalex.org/keywords/maternal-weight","display_name":"maternal weight","score":0.3179999887943268},{"id":"https://openalex.org/keywords/singleton-births","display_name":"singleton births","score":0.5929999947547913},{"id":"https://openalex.org/keywords/low-birth-weight","display_name":"low birth weight","score":0.7820000052452087},{"id":"https://openalex.org/keywords/very-low-birth-weight","display_name":"very low birth weight","score":0.9359999895095825},{"id":"https://openalex.org/keywords/gestational-age-at-birth","display_name":"gestational age at delivery","score":0.6179999709129333},{"id":"https://openalex.org/keywords/primiparity","display_name":"primiparity","score":0.7960000038146973},{"id":"https://openalex.org/keywords/cesarean-section","display_name":"cesarean section","score":0.8270000219345093},{"id":"https://openalex.org/keywords/gestational-diabetes-mellitus","display_name":"gestational diabetes mellitus","score":0.9670000076293945},{"id":"https://openalex.org/keywords/hypertensive-disorders-of-pregnancy","display_name":"hypertensive disorders of pregnancy","score":0.9800000190734863},{"id":"https://openalex.org/keywords/maternal-morbidity","display_name":"maternal morbidity","score":0.6610000133514404},{"id":"https://openalex.org/keywords/birth-weight","display_name":"birth weight","score":0.6119999885559082}],"concepts":[{"id":"https://openalex.org/C2781121325","wikidata":"https://www.wikidata.org/wiki/Q1146902","display_name":"Underweight","level":4,"score":0.7902280688285828},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7634124755859375},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.6297234296798706},{"id":"https://openalex.org/C46973012","wikidata":"https://www.wikidata.org/wiki/Q28627","display_name":"Gestation","level":3,"score":0.5558202266693115},{"id":"https://openalex.org/C131872663","wikidata":"https://www.wikidata.org/wiki/Q5284418","display_name":"Obstetrics","level":1,"score":0.5502141714096069},{"id":"https://openalex.org/C61511704","wikidata":"https://www.wikidata.org/wiki/Q1671857","display_name":"Incidence (geometry)","level":2,"score":0.5445935130119324},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.5442436337471008},{"id":"https://openalex.org/C66322754","wikidata":"https://www.wikidata.org/wiki/Q4128476","display_name":"Birth weight","level":3,"score":0.510529637336731},{"id":"https://openalex.org/C2778376644","wikidata":"https://www.wikidata.org/wiki/Q2253111","display_name":"Gestational age","level":3,"score":0.49747779965400696},{"id":"https://openalex.org/C2780221984","wikidata":"https://www.wikidata.org/wiki/Q131191","display_name":"Body mass index","level":2,"score":0.4276520609855652},{"id":"https://openalex.org/C2780586474","wikidata":"https://www.wikidata.org/wiki/Q332428","display_name":"Overweight","level":3,"score":0.35686594247817993},{"id":"https://openalex.org/C29456083","wikidata":"https://www.wikidata.org/wiki/Q1221899","display_name":"Gynecology","level":1,"score":0.33663684129714966},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.233159601688385},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0890083909034729},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.041436344385147095},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001724","descriptor_name":"Birth Weight","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002585","descriptor_name":"Cesarean Section","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005865","descriptor_name":"Gestational Age","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007230","descriptor_name":"Infant, Low Birth Weight","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007231","descriptor_name":"Infant, Newborn","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008423","descriptor_name":"Maternal Age","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011247","descriptor_name":"Pregnancy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011248","descriptor_name":"Pregnancy Complications","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011256","descriptor_name":"Pregnancy Outcome","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":true},{"descriptor_ui":"D012189","descriptor_name":"Retrospective Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013851","descriptor_name":"Thinness","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":true},{"descriptor_ui":"D015331","descriptor_name":"Cohort Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015992","descriptor_name":"Body Mass Index","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016640","descriptor_name":"Diabetes, Gestational","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D019102","descriptor_name":"Infant, Very Low Birth Weight","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D047928","descriptor_name":"Premature Birth","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D055815","descriptor_name":"Young Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1159/000447557","doi":"https://doi.org/10.1159/000447557","is_oa":false,"landing_page_url":"https://doi.org/10.1159/000447557","pdf_url":null,"source":{"id":"https://openalex.org/S207793224","display_name":"Gynecologic and Obstetric Investigation","issn_l":"0378-7346","issn":["0378-7346","1423-002X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310317820","host_organization_name":"Karger Publishers","host_organization_lineage":["https://openalex.org/P4310317820"],"host_organization_lineage_names":["Karger Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Gynecologic and Obstetric Investigation","raw_type":"journal-article"},{"id":"pmid:27384775","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/27384775","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":"Gynecologic and obstetric investigation","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.98580002784729}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W130268858","https://openalex.org/W237284311","https://openalex.org/W1527844141","https://openalex.org/W1898004438","https://openalex.org/W1979563530","https://openalex.org/W2031447136","https://openalex.org/W2050461797","https://openalex.org/W2086753980","https://openalex.org/W2087187750","https://openalex.org/W2098135150","https://openalex.org/W2101214987","https://openalex.org/W2123915064","https://openalex.org/W2295266031"],"related_works":["https://openalex.org/W2406569549","https://openalex.org/W2130728100","https://openalex.org/W2611211810","https://openalex.org/W2295266031","https://openalex.org/W4404699273","https://openalex.org/W2150597636","https://openalex.org/W2326569352","https://openalex.org/W2910340175","https://openalex.org/W4284885613","https://openalex.org/W2074368565"],"abstract_inverted_index":{"AIMS:":[0],"To":[1],"evaluate":[2],"the":[3,139],"advantages":[4,140],"and":[5,28,56,68,79,91,95,103,124,131,161],"disadvantages":[6],"of":[7,15,20,31,52,87,101,116,128,141,148],"being":[8,142],"underweight":[9,33,55],"before":[10,144],"pregnancy.":[11],"METHODS:":[12],"Cohort":[13],"study":[14],"a":[16,84,97,112,125,156],"large":[17],"population-based":[18],"dataset":[19],"singleton":[21],"births":[22,88,123],"was":[23],"used":[24],"to":[25],"compare":[26],"maternal":[27,66,150],"neonatal":[29],"outcomes":[30],"pre-gravid":[32,42,54,58],"body":[34],"mass":[35],"index":[36],"(BMI":[37,46],"<18.5":[38],"kg/m2)":[39],"women":[40],"with":[41],"normal":[43,59],"weight":[44,60,107],"controls":[45],"18.5-24.9":[47],"kg/m2).":[48],"RESULTS:":[49],"A":[50,135],"total":[51],"10,995":[53],"146,155":[57],"mothers":[61,76,110],"were":[62,71,77],"compared.":[63],"The":[64],"mean":[65],"age":[67,70,160],"gestational":[69,129,159],"not":[72],"different":[73],"but":[74],"lean":[75,143],"significantly":[78,98,113],"more":[80,157],"frequently":[81],"primiparous,":[82],"had":[83,96,111],"higher":[85,99,162],"incidence":[86,100,115,127],"at":[89],"<36":[90],"<32":[92],"weeks'":[93],"gestation,":[94],"low":[102,105],"very":[104],"birth":[106,117,163],"infants.":[108],"Lean":[109],"lower":[114,126],"weights":[118],">4,000":[119],"g,":[120],"less":[121,149],"cesarean":[122],"diabetes":[130],"hypertensive":[132],"disorders.":[133],"CONCLUSIONS:":[134],"tradeoff":[136],"exists":[137],"between":[138],"pregnancy":[145],"in":[146,152],"terms":[147],"morbidity":[151],"return":[153],"for":[154],"gaining":[155],"advanced":[158],"weight.":[164]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":4},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-07-22T00:00:00"}