{"id":"https://openalex.org/W4414616174","doi":"https://doi.org/10.1155/jpas/5562074","title":"Bayesian Accelerated Failure Time Model for Zero\u2010Inflated Survival Data With Application to Liver Cirrhosis","display_name":"Bayesian Accelerated Failure Time Model for Zero\u2010Inflated Survival Data With Application to Liver Cirrhosis","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4414616174","doi":"https://doi.org/10.1155/jpas/5562074"},"language":"en","primary_location":{"id":"doi:10.1155/jpas/5562074","doi":"https://doi.org/10.1155/jpas/5562074","is_oa":true,"landing_page_url":"https://doi.org/10.1155/jpas/5562074","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1155/jpas/5562074","source":{"id":"https://openalex.org/S47559716","display_name":"Journal of Probability and Statistics","issn_l":"1687-952X","issn":["1687-952X","1687-9538"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-c","norway-1","poland-40","vabb-shw"],"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869","https://openalex.org/P4310320595"],"host_organization_lineage_names":["Hindawi Publishing Corporation","Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Probability and Statistics","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1155/jpas/5562074","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5023210377","display_name":"Peter Enesi Omaku","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I26999989","display_name":"University of the Free State","ror":"https://ror.org/009xwd568","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26999989"]},{"id":"https://openalex.org/I4403386601","display_name":"Federal Polytechnic, Nasarawa","ror":"https://ror.org/04js4m423","country_code":"NG","type":"education","lineage":["https://openalex.org/I4403386601"]}],"countries":["NG","ZA"],"is_corresponding":false,"raw_author_name":"Peter Enesi Omaku","raw_affiliation_strings":["Department of Mathematical Statistics and Actuarial Sciences ,  University of the Free State ,  Bloemfontein ,  South Africa , ufs.ac.za","Department of Mathematics and Statistics ,  Federal Polytechnic Nasarawa ,  Kama , Nasarawa,  Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematical Statistics and Actuarial Sciences ,  University of the Free State ,  Bloemfontein ,  South Africa , ufs.ac.za","institution_ids":["https://openalex.org/I26999989"]},{"raw_affiliation_string":"Department of Mathematics and Statistics ,  Federal Polytechnic Nasarawa ,  Kama , Nasarawa,  Nigeria","institution_ids":["https://openalex.org/I4403386601"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5098279539","display_name":"Joseph Odunayo Braimah","orcid":"https://orcid.org/0000-0001-7817-6338","observed_orcids":["https://orcid.org/0000-0001-7817-6338"]},"institutions":[{"id":"https://openalex.org/I26999989","display_name":"University of the Free State","ror":"https://ror.org/009xwd568","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26999989"]},{"id":"https://openalex.org/I54231130","display_name":"Ambrose Alli University","ror":"https://ror.org/006pw7k84","country_code":"NG","type":"education","lineage":["https://openalex.org/I54231130"]}],"countries":["NG","ZA"],"is_corresponding":false,"raw_author_name":"Joseph Odunayo Braimah","raw_affiliation_strings":["Department of Mathematical Statistics and Actuarial Sciences ,  University of the Free State ,  Bloemfontein ,  South Africa , ufs.ac.za","Department of Mathematics and Statistics ,  Ambrose Alli University ,  Ekpoma , Edo,  Nigeria , aauekpoma.edu.ng"],"raw_orcid":"https://orcid.org/0000-0001-7817-6338","affiliations":[{"raw_affiliation_string":"Department of Mathematical Statistics and Actuarial Sciences ,  University of the Free State ,  Bloemfontein ,  South Africa , ufs.ac.za","institution_ids":["https://openalex.org/I26999989"]},{"raw_affiliation_string":"Department of Mathematics and Statistics ,  Ambrose Alli University ,  Ekpoma , Edo,  Nigeria , aauekpoma.edu.ng","institution_ids":["https://openalex.org/I54231130"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085815764","display_name":"F\u00e1bio Mathias Corr\u00eaa","orcid":"https://orcid.org/0000-0002-6708-9316","observed_orcids":["https://orcid.org/0000-0002-6708-9316"]},"institutions":[{"id":"https://openalex.org/I26999989","display_name":"University of the Free State","ror":"https://ror.org/009xwd568","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26999989"]}],"countries":["ZA"],"is_corresponding":true,"raw_author_name":"Mathias Fabio Correa","raw_affiliation_strings":["Department of Mathematical Statistics and Actuarial Sciences ,  University of the Free State ,  Bloemfontein ,  South Africa , ufs.ac.za"],"raw_orcid":"https://orcid.org/0000-0002-6708-9316","affiliations":[{"raw_affiliation_string":"Department of Mathematical Statistics and Actuarial Sciences ,  University of the Free State ,  Bloemfontein ,  South Africa , ufs.ac.za","institution_ids":["https://openalex.org/I26999989"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5085815764"],"corresponding_institution_ids":["https://openalex.org/I26999989"],"apc_list":{"value":1130,"currency":"USD","value_usd":1130},"apc_paid":{"value":1130,"currency":"USD","value_usd":1130},"fwci":0.5164,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.5424768,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"2025","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10968","display_name":"Statistical Distribution Estimation and Applications","score":0.9854000210762024,"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"}},"topics":[{"id":"https://openalex.org/T10968","display_name":"Statistical Distribution Estimation and Applications","score":0.9854000210762024,"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"}},{"id":"https://openalex.org/T10136","display_name":"Statistical Methods and Inference","score":0.0052999998442828655,"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"}},{"id":"https://openalex.org/T13500","display_name":"Probability and Statistical Research","score":0.004800000227987766,"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/liver-cirrhosis","display_name":"liver cirrhosis","score":0.9350000023841858},{"id":"https://openalex.org/keywords/weibull-distribution","display_name":"Weibull distribution","score":0.8529999852180481},{"id":"https://openalex.org/keywords/lognormal-distribution","display_name":"lognormal distribution","score":0.9869999885559082},{"id":"https://openalex.org/keywords/log-logistic-distribution","display_name":"log-logistic distribution","score":0.9990000128746033}],"concepts":[{"id":"https://openalex.org/C2777214474","wikidata":"https://www.wikidata.org/wiki/Q147778","display_name":"Cirrhosis","level":2,"score":0.8008000254631042},{"id":"https://openalex.org/C119043178","wikidata":"https://www.wikidata.org/wiki/Q320723","display_name":"Covariate","level":2,"score":0.7702000141143799},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.571399986743927},{"id":"https://openalex.org/C107673813","wikidata":"https://www.wikidata.org/wiki/Q812534","display_name":"Bayesian probability","level":2,"score":0.5600000023841858},{"id":"https://openalex.org/C10515644","wikidata":"https://www.wikidata.org/wiki/Q543310","display_name":"Survival analysis","level":2,"score":0.5394999980926514},{"id":"https://openalex.org/C117251300","wikidata":"https://www.wikidata.org/wiki/Q1849855","display_name":"Parametric statistics","level":2,"score":0.5077999830245972},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.44449999928474426},{"id":"https://openalex.org/C24574437","wikidata":"https://www.wikidata.org/wiki/Q7135228","display_name":"Parametric model","level":3,"score":0.42260000109672546},{"id":"https://openalex.org/C2776029263","wikidata":"https://www.wikidata.org/wiki/Q131742","display_name":"Hepatitis","level":2,"score":0.40860000252723694},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.3919999897480011},{"id":"https://openalex.org/C198531522","wikidata":"https://www.wikidata.org/wiki/Q485146","display_name":"Sample (material)","level":2,"score":0.36809998750686646},{"id":"https://openalex.org/C50382708","wikidata":"https://www.wikidata.org/wiki/Q223218","display_name":"Proportional hazards model","level":2,"score":0.35530000925064087},{"id":"https://openalex.org/C2776455275","wikidata":"https://www.wikidata.org/wiki/Q154869","display_name":"Hepatitis C","level":2,"score":0.35519999265670776},{"id":"https://openalex.org/C129848803","wikidata":"https://www.wikidata.org/wiki/Q2564360","display_name":"Sample size determination","level":2,"score":0.35339999198913574},{"id":"https://openalex.org/C160234255","wikidata":"https://www.wikidata.org/wiki/Q812535","display_name":"Bayesian inference","level":3,"score":0.3452000021934509},{"id":"https://openalex.org/C182365436","wikidata":"https://www.wikidata.org/wiki/Q50701","display_name":"Variable (mathematics)","level":2,"score":0.3400999903678894},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.3398999869823456},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.3154999911785126},{"id":"https://openalex.org/C3020402766","wikidata":"https://www.wikidata.org/wiki/Q104376712","display_name":"Prior information","level":2,"score":0.2856999933719635},{"id":"https://openalex.org/C78297888","wikidata":"https://www.wikidata.org/wiki/Q7449607","display_name":"Semiparametric model","level":3,"score":0.28209999203681946},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.27619999647140503},{"id":"https://openalex.org/C33114746","wikidata":"https://www.wikidata.org/wiki/Q4672282","display_name":"Accelerated failure time model","level":3,"score":0.27090001106262207},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.2667999863624573},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.26080000400543213},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.25609999895095825},{"id":"https://openalex.org/C177713679","wikidata":"https://www.wikidata.org/wiki/Q679690","display_name":"Intensive care medicine","level":1,"score":0.2506999969482422}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1155/jpas/5562074","doi":"https://doi.org/10.1155/jpas/5562074","is_oa":true,"landing_page_url":"https://doi.org/10.1155/jpas/5562074","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1155/jpas/5562074","source":{"id":"https://openalex.org/S47559716","display_name":"Journal of Probability and Statistics","issn_l":"1687-952X","issn":["1687-952X","1687-9538"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-c","norway-1","poland-40","vabb-shw"],"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869","https://openalex.org/P4310320595"],"host_organization_lineage_names":["Hindawi Publishing Corporation","Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Probability and Statistics","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:8f24a86d729a4cd1b9d02692940dfd98","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/8f24a86d729a4cd1b9d02692940dfd98","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Probability and Statistics, Vol 2025 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/jpas/5562074","doi":"https://doi.org/10.1155/jpas/5562074","is_oa":true,"landing_page_url":"https://doi.org/10.1155/jpas/5562074","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1155/jpas/5562074","source":{"id":"https://openalex.org/S47559716","display_name":"Journal of Probability and Statistics","issn_l":"1687-952X","issn":["1687-952X","1687-9538"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-c","norway-1","poland-40","vabb-shw"],"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869","https://openalex.org/P4310320595"],"host_organization_lineage_names":["Hindawi Publishing Corporation","Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Probability and Statistics","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.6240000128746033,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320322870","display_name":"Universiteit van die Vrystaat","ror":"https://ror.org/009xwd568"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4414616174.pdf","grobid_xml":"https://content.openalex.org/works/W4414616174.grobid-xml"},"referenced_works_count":15,"referenced_works":["https://openalex.org/W1594215124","https://openalex.org/W1973180771","https://openalex.org/W2066048519","https://openalex.org/W2071985577","https://openalex.org/W2088374159","https://openalex.org/W2119634512","https://openalex.org/W2323339575","https://openalex.org/W2415223254","https://openalex.org/W2494572488","https://openalex.org/W2753666478","https://openalex.org/W2770992863","https://openalex.org/W2898326073","https://openalex.org/W2963831345","https://openalex.org/W3132156268","https://openalex.org/W3162498136"],"related_works":["https://openalex.org/W2737996489","https://openalex.org/W7077912737","https://openalex.org/W2528288784","https://openalex.org/W7213311697","https://openalex.org/W4409833573","https://openalex.org/W3166734643","https://openalex.org/W7162304475","https://openalex.org/W2598740654","https://openalex.org/W7154496954","https://openalex.org/W7160525410"],"abstract_inverted_index":{"Analyzing":[0],"count":[1],"data,":[2],"particularly":[3],"in":[4,33,39],"survival":[5,23,119,160],"analysis,":[6],"is":[7],"challenging":[8],"when":[9],"there":[10],"are":[11,17],"many":[12],"zeros,":[13],"and":[14,63,70,76,87,90,136,170],"some":[15],"observations":[16],"right\u2010censored.":[18],"This":[19,165],"study":[20,141],"tackles":[21],"zero\u2010inflated":[22],"event":[24],"data":[25],"(ZISED),":[26],"specifically":[27],"focusing":[28],"on":[29,82],"liver":[30,92,122,137,162],"cirrhosis":[31,93,163],"cases":[32],"Nigeria.":[34],"Current":[35],"models":[36],"fall":[37],"short":[38],"effectively":[40],"capturing":[41],"ZISED\u2019s":[42],"unique":[43],"structure.":[44],"To":[45],"address":[46],"this,":[47],"we":[48,95],"propose":[49],"a":[50,91,147],"flexible":[51,148],"Bayesian":[52,149],"accelerated":[53],"failure":[54],"time":[55],"(AFT)":[56],"modeling":[57,144],"framework.":[58,151],"We":[59,114],"investigate":[60],"both":[61],"parametric":[62],"semiparametric":[64],"AFT":[65,68,72,150],"models\u2014specifically":[66],"nonpartition":[67],"(NPAFT)":[69],"partition":[71],"(PAFT)\u2014for":[73],"Weibull,":[74],"log\u2010normal,":[75],"log\u2010logistic":[77],"distributions.":[78],"Using":[79],"simulations":[80],"based":[81],"various":[83],"initial":[84],"coefficient":[85],"values":[86],"sample":[88],"sizes":[89],"dataset,":[94],"compared":[96],"model":[97,105],"performance.":[98],"Results":[99],"indicate":[100],"that":[101],"the":[102,107],"log\u2010normal":[103],"PAFT":[104],"provides":[106,154],"best":[108],"fit":[109],"for":[110],"these":[111],"complex":[112],"datasets.":[113],"identified":[115],"key":[116],"covariates":[117],"influencing":[118],"including":[120],"age,":[121],"size,":[123],"hepatitis":[124],"type,":[125],"time,":[126],"hypertension,":[127],"education":[128],"level,":[129],"sex,":[130],"marital":[131],"status,":[132],"diet,":[133],"drug":[134],"use,":[135],"damage.":[138],"Overall,":[139],"this":[140],"advances":[142],"ZISED":[143],"by":[145],"introducing":[146],"It":[152],"also":[153],"valuable":[155],"insights":[156],"into":[157],"factors":[158],"affecting":[159],"among":[161],"patients.":[164],"supports":[166],"better":[167],"clinical":[168],"decision\u2010making":[169],"public":[171],"health":[172],"interventions.":[173]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-10-27T15:51:10.671819","created_date":"2025-10-10T00:00:00"}