{"id":"https://openalex.org/W2019903534","doi":"https://doi.org/10.1093/gerona/56.6.m344","title":"Bioelectrical Impedance Analysis Estimation of Water Compartments in Elderly Diseased Patients: The Source Study","display_name":"Bioelectrical Impedance Analysis Estimation of Water Compartments in Elderly Diseased Patients: The Source Study","publication_year":2001,"publication_date":"2001-06-01","ids":{"openalex":"https://openalex.org/W2019903534","doi":"https://doi.org/10.1093/gerona/56.6.m344","mag":"2019903534","pmid":"https://pubmed.ncbi.nlm.nih.gov/11382792"},"language":"en","primary_location":{"id":"doi:10.1093/gerona/56.6.m344","doi":"https://doi.org/10.1093/gerona/56.6.m344","is_oa":false,"landing_page_url":"https://doi.org/10.1093/gerona/56.6.m344","pdf_url":null,"source":{"id":"https://openalex.org/S969433497","display_name":"The Journals of Gerontology Series A","issn_l":"1079-5006","issn":["1079-5006","1758-535X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","erih-plus","jufo-3","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journals of Gerontology Series A: Biological Sciences and Medical Sciences","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/A5015742549","display_name":"Patrick Ritz","orcid":"https://orcid.org/0000-0001-8105-4008","observed_orcids":["https://orcid.org/0000-0001-8105-4008"]},"institutions":[{"id":"https://openalex.org/I4210112910","display_name":"Centre Hospitalier Universitaire d'Angers","ror":"https://ror.org/0250ngj72","country_code":"FR","type":"healthcare","lineage":["https://openalex.org/I4210112910"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"P. Ritz","raw_affiliation_strings":["Centre Hospitalier Universitaire, Angers, France. patrick.ritz@wanadoo.fr","Centre Hospitalier Universitaire, Angers, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre Hospitalier Universitaire, Angers, France. patrick.ritz@wanadoo.fr","institution_ids":["https://openalex.org/I4210112910"]},{"raw_affiliation_string":"Centre Hospitalier Universitaire, Angers, France","institution_ids":["https://openalex.org/I4210112910"]}]},{"author_position":"last","author":{"id":null,"display_name":"for the Source Study","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"for the Source Study","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5015742549"],"corresponding_institution_ids":["https://openalex.org/I4210112910"],"apc_list":{"value":4408,"currency":"USD","value_usd":4408},"apc_paid":null,"fwci":3.1374,"has_fulltext":false,"cited_by_count":64,"citation_normalized_percentile":{"value":0.90870647,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":98},"biblio":{"volume":"56","issue":"6","first_page":"M344","last_page":"M348"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12279","display_name":"Body Composition Measurement Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T12279","display_name":"Body Composition Measurement Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T11778","display_name":"Electrical and Bioimpedance Tomography","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10397","display_name":"Nutrition and Health in Aging","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/bioelectrical-impedance-analysis","display_name":"bioelectrical impedance analysis","score":0.9990000128746033},{"id":"https://openalex.org/keywords/total-body-water","display_name":"total body water","score":0.9399999976158142},{"id":"https://openalex.org/keywords/extracellular-water","display_name":"extracellular water","score":1.0},{"id":"https://openalex.org/keywords/elderly-patients","display_name":"elderly patients","score":0.6740000247955322},{"id":"https://openalex.org/keywords/hydration-status","display_name":"hydration status","score":0.9010000228881836},{"id":"https://openalex.org/keywords/bromide-dilution","display_name":"bromide dilution","score":0.996999979019165},{"id":"https://openalex.org/keywords/body-water-compartments","display_name":"body water compartments","score":0.5350000262260437}],"concepts":[{"id":"https://openalex.org/C33872192","wikidata":"https://www.wikidata.org/wiki/Q864287","display_name":"Bioelectrical impedance analysis","level":3,"score":0.9500464200973511},{"id":"https://openalex.org/C84029825","wikidata":"https://www.wikidata.org/wiki/Q4936981","display_name":"Body water","level":3,"score":0.8711346387863159},{"id":"https://openalex.org/C2113261","wikidata":"https://www.wikidata.org/wiki/Q2914458","display_name":"Extracellular fluid","level":3,"score":0.7046142816543579},{"id":"https://openalex.org/C96618451","wikidata":"https://www.wikidata.org/wiki/Q3028008","display_name":"Dilution","level":2,"score":0.6657571792602539},{"id":"https://openalex.org/C171679685","wikidata":"https://www.wikidata.org/wiki/Q3707695","display_name":"Isotope dilution","level":3,"score":0.5177208781242371},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.5078781247138977},{"id":"https://openalex.org/C105054674","wikidata":"https://www.wikidata.org/wiki/Q3707381","display_name":"Mean difference","level":3,"score":0.4802037477493286},{"id":"https://openalex.org/C126894567","wikidata":"https://www.wikidata.org/wiki/Q105650","display_name":"Urology","level":1,"score":0.33611631393432617},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2992909550666809},{"id":"https://openalex.org/C147583825","wikidata":"https://www.wikidata.org/wiki/Q620876","display_name":"Body weight","level":2,"score":0.27221667766571045},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.26314276456832886},{"id":"https://openalex.org/C28406088","wikidata":"https://www.wikidata.org/wiki/Q5571762","display_name":"Extracellular","level":2,"score":0.1732233166694641},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.1329997479915619},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.10293808579444885},{"id":"https://openalex.org/C2780221984","wikidata":"https://www.wikidata.org/wiki/Q131191","display_name":"Body mass index","level":2,"score":0.08361607789993286},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0761629045009613},{"id":"https://openalex.org/C44249647","wikidata":"https://www.wikidata.org/wiki/Q208498","display_name":"Confidence interval","level":2,"score":0.06321355700492859},{"id":"https://openalex.org/C162356407","wikidata":"https://www.wikidata.org/wiki/Q180809","display_name":"Mass spectrometry","level":2,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000368","descriptor_name":"Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000369","descriptor_name":"Aged, 80 and over","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001834","descriptor_name":"Body Water","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D001965","descriptor_name":"Bromides","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003681","descriptor_name":"Dehydration","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D005110","descriptor_name":"Extracellular Space","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007201","descriptor_name":"Indicator Dilution Techniques","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008954","descriptor_name":"Models, Biological","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010104","descriptor_name":"Oxygen Radioisotopes","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012016","descriptor_name":"Reference Values","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017097","descriptor_name":"Electric Impedance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":3,"locations":[{"id":"doi:10.1093/gerona/56.6.m344","doi":"https://doi.org/10.1093/gerona/56.6.m344","is_oa":false,"landing_page_url":"https://doi.org/10.1093/gerona/56.6.m344","pdf_url":null,"source":{"id":"https://openalex.org/S969433497","display_name":"The Journals of Gerontology Series A","issn_l":"1079-5006","issn":["1079-5006","1758-535X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","erih-plus","jufo-3","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journals of Gerontology Series A: Biological Sciences and Medical Sciences","raw_type":"journal-article"},{"id":"pmid:11382792","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/11382792","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":"The journals of gerontology. Series A, Biological sciences and medical sciences","raw_type":"Journal Article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.942.8242","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.942.8242","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://biomedgerontology.oxfordjournals.org/content/56/6/M344.full.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":0.9391000270843506}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W21354914","https://openalex.org/W184462977","https://openalex.org/W1858396460","https://openalex.org/W1866486203","https://openalex.org/W1966225274","https://openalex.org/W1973137664","https://openalex.org/W2015795623","https://openalex.org/W2038299154","https://openalex.org/W2045896650","https://openalex.org/W2056601420","https://openalex.org/W2066289612","https://openalex.org/W2070317712","https://openalex.org/W2075576392","https://openalex.org/W2094245642","https://openalex.org/W2094309558","https://openalex.org/W2117503760","https://openalex.org/W2127858763","https://openalex.org/W2140284033","https://openalex.org/W2141005052","https://openalex.org/W2153250908","https://openalex.org/W2180331113","https://openalex.org/W2395312989","https://openalex.org/W2415156044","https://openalex.org/W2465692541","https://openalex.org/W4237437206","https://openalex.org/W4255254353","https://openalex.org/W4302336172"],"related_works":["https://openalex.org/W7098489504","https://openalex.org/W2075576392","https://openalex.org/W2169795375","https://openalex.org/W21354914","https://openalex.org/W2003208992","https://openalex.org/W82409346","https://openalex.org/W4236038326","https://openalex.org/W2165894511","https://openalex.org/W1964520982","https://openalex.org/W2128242543"],"abstract_inverted_index":{"BACKGROUND:":[0],"This":[1],"study":[2],"validates,":[3],"in":[4,26,36,171],"geriatric":[5,38,172],"patients,":[6],"bioelectrical":[7],"impedance":[8],"analysis":[9],"(BIA)":[10],"equations":[11],"that":[12],"had":[13],"been":[14],"derived":[15],"to":[16],"estimate":[17],"total":[18],"body":[19],"water":[20,24,165],"(TBW)":[21],"and":[22,51,57,70,97,139,144,152],"extracellular":[23],"(ECW)":[25],"healthy":[27],"elderly":[28],"subjects.":[29],"METHODS:":[30],"We":[31,40,157],"performed":[32],"a":[33,82,159],"multicentric":[34],"trial":[35],"six":[37],"wards.":[39],"studied":[41],"169":[42],"patients":[43,173],"with":[44,62,67,73,81,108,123,129,174],"varying":[45],"degrees":[46],"of":[47,55,58,65,71,84,121],"hydration:":[48],"dehydrated,":[49],"euvolemic,":[50],"overhydrated.":[52],"BIA":[53,78,124],"estimates":[54],"TBW":[56,66,80],"ECW":[59,72,122],"were":[60,125],"compared":[61,107,128],"the":[63,117],"measurement":[64],"(18)O":[68,109],"dilution":[69],"bromide":[74],"(Br)":[75],"dilution.":[76,110],"RESULTS:":[77],"estimated":[79,169],"difference":[83,112],"0.48":[85],"+/-":[86,90,99,133,146],"2.3":[87],"l":[88,101,135,148],"(mean":[89],"SD)":[91],"(50":[92],"kHz;":[93,103],"p":[94,104,141,154],"=":[95],".01)":[96],"0.69":[98],"2.2":[100],"(100":[102],"<":[105,142,155],"0.001)":[106],"The":[111],"was":[113],"not":[114],"affected":[115],"by":[116],"hydration":[118],"status.":[119],"Estimates":[120],"systematically":[126],"biased":[127],"Br":[130],"dilution:":[131],"4.6":[132],"3.1":[134],"(equation":[136,149],"from":[137,150],"Segal":[138],"colleagues;":[140,153],".001)":[143],"3.4":[145],"2.9":[147],"Visser":[151],".001).":[156],"propose":[158],"new,":[160],"cross-validated":[161],"equation.":[162],"Conclusions.":[163],"Body":[164],"spaces":[166],"can":[167],"be":[168],"accurately":[170],"BIA.":[175]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}