{"id":"https://openalex.org/W2006387810","doi":"https://doi.org/10.1016/s0010-4825(96)00028-5","title":"An efficient SAS program for exact stratification of person-years","display_name":"An efficient SAS program for exact stratification of person-years","publication_year":1997,"publication_date":"1997-01-01","ids":{"openalex":"https://openalex.org/W2006387810","doi":"https://doi.org/10.1016/s0010-4825(96)00028-5","mag":"2006387810","pmid":"https://pubmed.ncbi.nlm.nih.gov/9055045"},"language":"en","primary_location":{"id":"doi:10.1016/s0010-4825(96)00028-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0010-4825(96)00028-5","pdf_url":null,"source":{"id":"https://openalex.org/S44278595","display_name":"Computers in Biology and Medicine","issn_l":"0010-4825","issn":["0010-4825","1879-0534"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers in Biology and Medicine","raw_type":"journal-article"},"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/A5101321515","display_name":"Jian Sun","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Jian Sun","raw_affiliation_strings":["Department of Hygiene, Nagoya University, School of Medicine, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Hygiene, Nagoya University, School of Medicine, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015276157","display_name":"Eiji Shibata","orcid":"https://orcid.org/0000-0003-4232-6554"},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Eiji Shibata","raw_affiliation_strings":["Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]},{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076994948","display_name":"Michihiro Kamijima","orcid":"https://orcid.org/0000-0003-0670-8790"},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Michihiro Kamijima","raw_affiliation_strings":["Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]},{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054887017","display_name":"Machiko Toida","orcid":null},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Machiko Toida","raw_affiliation_strings":["Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]},{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5023253604","display_name":"Yasuhiro Takeuch","orcid":null},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yasuhiro Takeuch","raw_affiliation_strings":["Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]},{"raw_affiliation_string":"Department of Hygiene, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466, Japan","institution_ids":["https://openalex.org/I60134161"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5101321515"],"corresponding_institution_ids":[],"apc_list":{"value":2610,"currency":"USD","value_usd":2610},"apc_paid":null,"fwci":1.4369,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.83800832,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"27","issue":"1","first_page":"49","last_page":"53"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12011","display_name":"Insurance, Mortality, Demography, Risk Management","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/3317","display_name":"Demography"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T12011","display_name":"Insurance, Mortality, Demography, Risk Management","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/3317","display_name":"Demography"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T14509","display_name":"demographic modeling and climate adaptation","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10235","display_name":"Health disparities and outcomes","score":0.9807000160217285,"subfield":{"id":"https://openalex.org/subfields/3306","display_name":"Health"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/stratification","display_name":"Stratification (seeds)","score":0.5782055854797363},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5177459120750427},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.09714937210083008}],"concepts":[{"id":"https://openalex.org/C192943249","wikidata":"https://www.wikidata.org/wiki/Q1893382","display_name":"Stratification (seeds)","level":5,"score":0.5782055854797363},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5177459120750427},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.09714937210083008},{"id":"https://openalex.org/C100701293","wikidata":"https://www.wikidata.org/wiki/Q193838","display_name":"Germination","level":2,"score":0.0},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C88548481","wikidata":"https://www.wikidata.org/wiki/Q2397491","display_name":"Seed dormancy","level":4,"score":0.0},{"id":"https://openalex.org/C3527866","wikidata":"https://www.wikidata.org/wiki/Q162267","display_name":"Dormancy","level":3,"score":0.0}],"mesh":[{"descriptor_ui":"D003627","descriptor_name":"Data Interpretation, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003627","descriptor_name":"Data Interpretation, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003627","descriptor_name":"Data Interpretation, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004812","descriptor_name":"Epidemiologic Methods","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004812","descriptor_name":"Epidemiologic Methods","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004812","descriptor_name":"Epidemiologic Methods","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","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":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009026","descriptor_name":"Mortality","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009026","descriptor_name":"Mortality","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009026","descriptor_name":"Mortality","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015993","descriptor_name":"Life Tables","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015993","descriptor_name":"Life Tables","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015993","descriptor_name":"Life Tables","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017677","descriptor_name":"Age Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017677","descriptor_name":"Age Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017677","descriptor_name":"Age Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1016/s0010-4825(96)00028-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0010-4825(96)00028-5","pdf_url":null,"source":{"id":"https://openalex.org/S44278595","display_name":"Computers in Biology and Medicine","issn_l":"0010-4825","issn":["0010-4825","1879-0534"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers in Biology and Medicine","raw_type":"journal-article"},{"id":"pmid:9055045","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/9055045","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,"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":"Computers in biology and medicine","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8399999737739563,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W1552366685","https://openalex.org/W2029789702","https://openalex.org/W2065949317","https://openalex.org/W2068339828","https://openalex.org/W2094876431","https://openalex.org/W2724744060"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4386554877","https://openalex.org/W2358668433","https://openalex.org/W4236138976","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W3203136021","https://openalex.org/W2382290278","https://openalex.org/W3003088935"],"abstract_inverted_index":null,"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2026-01-13T01:12:25.745995","created_date":"2016-06-24T00:00:00"}