{"id":"https://openalex.org/W2106882009","doi":null,"title":"Validation of self-reported smoking status by measuring serum cotinine levels: an Indian perspective.","display_name":"Validation of self-reported smoking status by measuring serum cotinine levels: an Indian perspective.","publication_year":2010,"publication_date":"2010-05-01","ids":{"openalex":"https://openalex.org/W2106882009","mag":"2106882009","pmid":"https://pubmed.ncbi.nlm.nih.gov/20949713"},"language":"en","primary_location":{"id":"pmid:20949713","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/20949713","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 National medical journal of India","raw_type":"Journal Article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["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/A5008755252","display_name":"Panniyammakal Jeemon","orcid":"https://orcid.org/0000-0003-4172-4307","observed_orcids":["https://orcid.org/0000-0003-4172-4307"]},"institutions":[{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"P Jeemon","raw_affiliation_strings":["Initiative for Cardiovascular Health Research in the Developing Countries, C1/52, Second Floor, Safdarjung Development Area, New Delhi 110016, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Initiative for Cardiovascular Health Research in the Developing Countries, C1/52, Second Floor, Safdarjung Development Area, New Delhi 110016, India","institution_ids":["https://openalex.org/I68891433"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035497850","display_name":"Saroochi Agarwal","orcid":"https://orcid.org/0000-0002-1890-0926","observed_orcids":["https://orcid.org/0000-0002-1890-0926"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S Agarwal","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005788588","display_name":"Lakshmy Ramakrishnan","orcid":"https://orcid.org/0000-0002-8582-3705","observed_orcids":["https://orcid.org/0000-0002-8582-3705"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"L Ramakrishnan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111822540","display_name":"R Gupta","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"R Gupta","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030173951","display_name":"Uma Snehi","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"U Snehi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063437366","display_name":"Vivek Chaturvedi","orcid":"https://orcid.org/0000-0002-1792-4678","observed_orcids":["https://orcid.org/0000-0002-1792-4678"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"V Chaturvedi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087323681","display_name":"K. Srinath Reddy","orcid":"https://orcid.org/0000-0003-3416-3548","observed_orcids":["https://orcid.org/0000-0003-3416-3548"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"K S Reddy","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5015160949","display_name":"Dorairaj Prabhakaran","orcid":"https://orcid.org/0000-0002-3172-834X","observed_orcids":["https://orcid.org/0000-0002-3172-834X"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"D Prabhakaran","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.2682,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.80505142,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"23","issue":"3","first_page":"134","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10060","display_name":"Smoking Behavior and Cessation","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T10060","display_name":"Smoking Behavior and Cessation","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational 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/T10143","display_name":"Chronic Obstructive Pulmonary Disease (COPD) Research","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"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/T14374","display_name":"Statistical Methods in Epidemiology","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/serum-cotinine","display_name":"serum cotinine","score":0.8539999723434448},{"id":"https://openalex.org/keywords/self-reported-smoking-status","display_name":"self-reported smoking status","score":0.8899999856948853},{"id":"https://openalex.org/keywords/passive-smoking","display_name":"passive smoking","score":0.5090000033378601},{"id":"https://openalex.org/keywords/environmental-tobacco-smoke","display_name":"environmental tobacco smoke","score":0.8769999742507935},{"id":"https://openalex.org/keywords/tobacco-use-assessment","display_name":"tobacco use assessment","score":0.5860000252723694},{"id":"https://openalex.org/keywords/questionnaire-validation","display_name":"questionnaire validation","score":0.9120000004768372},{"id":"https://openalex.org/keywords/cutoff-values","display_name":"cut-off values","score":0.6019999980926514},{"id":"https://openalex.org/keywords/misclassification","display_name":"misclassification","score":0.6639999747276306},{"id":"https://openalex.org/keywords/industrial-workers","display_name":"industrial workers","score":0.9359999895095825},{"id":"https://openalex.org/keywords/india","display_name":"India","score":0.36399999260902405}],"concepts":[{"id":"https://openalex.org/C2776319443","wikidata":"https://www.wikidata.org/wiki/Q421177","display_name":"Cotinine","level":3,"score":0.9475154876708984},{"id":"https://openalex.org/C119060515","wikidata":"https://www.wikidata.org/wiki/Q1916617","display_name":"Interquartile range","level":2,"score":0.879136323928833},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7745375633239746},{"id":"https://openalex.org/C2778355491","wikidata":"https://www.wikidata.org/wiki/Q2386268","display_name":"Tobacco smoke","level":2,"score":0.5878850817680359},{"id":"https://openalex.org/C44249647","wikidata":"https://www.wikidata.org/wiki/Q208498","display_name":"Confidence interval","level":2,"score":0.4910554885864258},{"id":"https://openalex.org/C76318530","wikidata":"https://www.wikidata.org/wiki/Q16833590","display_name":"Area under the curve","level":2,"score":0.4460921883583069},{"id":"https://openalex.org/C2779547902","wikidata":"https://www.wikidata.org/wiki/Q28086552","display_name":"Nicotine","level":2,"score":0.4226281940937042},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.36911720037460327},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.36381930112838745}],"mesh":[{"descriptor_ui":"D003367","descriptor_name":"Cotinine","qualifier_ui":"Q000097","qualifier_name":"blood","is_major_topic":true},{"descriptor_ui":"D004522","descriptor_name":"Educational Status","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":"D007194","descriptor_name":"India","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009790","descriptor_name":"Occupations","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011159","descriptor_name":"Population Surveillance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011795","descriptor_name":"Surveys and Questionnaires","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012372","descriptor_name":"ROC Curve","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012907","descriptor_name":"Smoking","qualifier_ui":"Q000097","qualifier_name":"blood","is_major_topic":true},{"descriptor_ui":"D014028","descriptor_name":"Tobacco Smoke Pollution","qualifier_ui":"Q000009","qualifier_name":"adverse effects","is_major_topic":true},{"descriptor_ui":"D015415","descriptor_name":"Biomarkers","qualifier_ui":"Q000097","qualifier_name":"blood","is_major_topic":false},{"descriptor_ui":"D018709","descriptor_name":"Statistics, Nonparametric","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"pmid:20949713","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/20949713","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 National medical journal of India","raw_type":"Journal Article"},{"id":"mag:2106882009","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/20949713","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":null,"is_accepted":false,"is_published":false,"raw_source_name":"PubMed","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":1.0,"display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1832387771","https://openalex.org/W1965152112","https://openalex.org/W1971120409","https://openalex.org/W1971359017","https://openalex.org/W1987157982","https://openalex.org/W1993465065","https://openalex.org/W2024403468","https://openalex.org/W2033638671","https://openalex.org/W2072525595","https://openalex.org/W2075340747","https://openalex.org/W2083900701","https://openalex.org/W2085191348","https://openalex.org/W2141474743","https://openalex.org/W2147528426","https://openalex.org/W2156173906"],"related_works":["https://openalex.org/W2017666240","https://openalex.org/W2062549056","https://openalex.org/W2969749491","https://openalex.org/W2072525595","https://openalex.org/W2009311393","https://openalex.org/W7098296100","https://openalex.org/W2033638671","https://openalex.org/W2935687315","https://openalex.org/W2109671285","https://openalex.org/W1993465065"],"abstract_inverted_index":{"BACKGROUND:":[0],"Serum":[1],"cotinine":[2,161,189,262],"levels":[3,85,116,138,263],"are":[4],"a":[5,31,48,64,160,197,245,270],"reliable":[6],"marker":[7],"of":[8,50,71,76,92,164,247,254],"tobacco":[9,22,248],"use.":[10],"Few":[11],"studies":[12,259],"have":[13],"validated":[14],"questionnaires":[15],"assessing":[16,69,273],"smoking":[17,72],"and":[18,74,111,125,131,145,156,177,228,237],"exposure":[19,77,275],"to":[20,78,104,109,121,129,142,167,175,180,209,214,219,235,240,276,285,291],"environmental":[21],"smoke":[23,277],"(ETS)":[24],"against":[25],"serum":[26,261],"levels.":[27],"We":[28,39],"undertook":[29],"such":[30],"study":[32,97],"in":[33,36,63,88,257,281],"industrial":[34,66],"workers":[35],"India.":[37],"METHODS:":[38],"chose":[40],"426":[41],"individuals":[42,52],"by":[43],"stratified":[44],"random":[45],"sampling":[46],"from":[47,171,216,267,287],"database":[49],"3397":[51],"surveyed":[53],"at":[54,193,226],"New":[55],"Delhi":[56],"for":[57,126],"the":[58,89,134,184,206],"cardiovascular":[59],"disease":[60],"surveillance":[61],"programme":[62],"large":[65],"setting.":[67],"Questionnaires":[68],"details":[70],"practices":[73],"duration":[75],"ETS":[79,110,122,130,176,181,215,236,286],"(if":[80],"any)":[81],"were":[82,86,123,139],"administered.":[83],"Cotinine":[84,115],"measured":[87],"blood":[90],"samples":[91],"these":[93],"individuals.":[94],"RESULTS:":[95],"The":[96,151,187,221],"population":[98],"comprised":[99],"142":[100,106,112],"nonsmokers":[101,118],"not":[102,119,173,212,233,289],"exposed":[103,108,120,128,174,179,213,218,234,239,284,290],"ETS,":[105,241],"non-smokers":[107,127,172,211,232,283],"active":[113,132,169],"smokers.":[114],"among":[117,230],"non-detectable;":[124],"smokers,":[133],"median":[135],"(interquartile":[136],"range)":[137],"non-detectable":[140],"(non-detectable":[141],"46.1":[143],"ng/ml)":[144],"336":[146],"ng/ml":[147,166,195],"(204-500":[148],"ng/ml),":[149],"respectively.":[150,242],"best":[152],"combined":[153],"sensitivity":[154,280],"(91%)":[155],"specificity":[157,202],"(87.2%)":[158],"yielded":[159],"cut-off":[162,188],"level":[163,190],"40.35":[165],"differentiate":[168,265],"smokers":[170,256,266],"those":[178,217,238,288],"(area":[182],"under":[183,205],"curve":[185,207],"0.902).":[186],"was":[191,224],"estimated":[192,225],"10.95":[194],"using":[196],"similar":[198],"analysis":[199],"(sensitivity":[200],"43%,":[201],"82%;":[203],"area":[204],"0.64)":[208],"distinguish":[210],"ETS.":[220,292],"misclassification":[222],"rate":[223],"19%":[227],"57.1%":[229],"self-reported":[231],"CONCLUSIONS:":[243],"Obtaining":[244],"history":[246],"use":[249],"is":[250],"an":[251],"accurate":[252],"method":[253],"detecting":[255],"epidemiological":[258],"whereas":[260],"accurately":[264],"non-smokers.":[268],"However,":[269],"brief":[271],"questionnaire":[272],"passive":[274],"has":[278],"poor":[279],"distinguishing":[282]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}