{"id":"https://openalex.org/W2139654437","doi":"https://doi.org/10.1016/j.sleep.2014.06.008","title":"Sleep habits in adolescents of Saudi Arabia; distinct patterns and extreme sleep schedules","display_name":"Sleep habits in adolescents of Saudi Arabia; distinct patterns and extreme sleep schedules","publication_year":2014,"publication_date":"2014-08-08","ids":{"openalex":"https://openalex.org/W2139654437","doi":"https://doi.org/10.1016/j.sleep.2014.06.008","mag":"2139654437","pmid":"https://pubmed.ncbi.nlm.nih.gov/25260431"},"language":"en","primary_location":{"id":"doi:10.1016/j.sleep.2014.06.008","doi":"https://doi.org/10.1016/j.sleep.2014.06.008","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.sleep.2014.06.008","pdf_url":null,"source":{"id":"https://openalex.org/S183718435","display_name":"Sleep Medicine","issn_l":"1389-9457","issn":["1389-9457","1878-5506"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"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":"Sleep Medicine","raw_type":"journal-article"},"volume":null,"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/A5041713307","display_name":"Roah A. Merdad","orcid":"https://orcid.org/0000-0002-7257-0040","observed_orcids":["https://orcid.org/0000-0002-7257-0040"]},"institutions":[{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Roah A. Merdad","raw_affiliation_strings":["Department of Family and Community Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Family and Community Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030651846","display_name":"Leena Merdad","orcid":"https://orcid.org/0000-0002-3270-0736","observed_orcids":["https://orcid.org/0000-0002-3270-0736"]},"institutions":[{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Leena A. Merdad","raw_affiliation_strings":["Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054248506","display_name":"Rawan A. Nassif","orcid":"https://orcid.org/0009-0002-2698-0898","observed_orcids":["https://orcid.org/0009-0002-2698-0898"]},"institutions":[{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Rawan A. Nassif","raw_affiliation_strings":["Department of Family and Community Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Family and Community Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073550627","display_name":"Douaa El Derwi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145487455","display_name":"Cairo University","ror":"https://ror.org/03q21mh05","country_code":"EG","type":"education","lineage":["https://openalex.org/I145487455"]},{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]}],"countries":["EG","SA"],"is_corresponding":false,"raw_author_name":"Douaa El-Derwi","raw_affiliation_strings":["Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia; Faculty of Medicine, Cairo University, Cairo, Egypt","Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia","Faculty of Medicine, Cairo University, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia; Faculty of Medicine, Cairo University, Cairo, Egypt","institution_ids":["https://openalex.org/I145487455","https://openalex.org/I185163786"]},{"raw_affiliation_string":"Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786"]},{"raw_affiliation_string":"Faculty of Medicine, Cairo University, Cairo, Egypt","institution_ids":["https://openalex.org/I145487455"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5050643416","display_name":"Siraj Wali","orcid":"https://orcid.org/0000-0002-5825-5642","observed_orcids":["https://orcid.org/0000-0002-5825-5642"]},"institutions":[{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]},{"id":"https://openalex.org/I4210111472","display_name":"King Abdul Aziz University Hospital","ror":"https://ror.org/01vv03303","country_code":"SA","type":"healthcare","lineage":["https://openalex.org/I4210111472"]}],"countries":["SA"],"is_corresponding":true,"raw_author_name":"Siraj O. Wali","raw_affiliation_strings":["Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University & Sleep Medicine and Research Center, King Abdulaziz University Hospital, Jeddah, Saudi Arabia. Electronic address: sowali@kau.edu.sa","Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University & Sleep Medicine and Research Center, King Abdulaziz University Hospital, Jeddah, Saudi Arabia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University & Sleep Medicine and Research Center, King Abdulaziz University Hospital, Jeddah, Saudi Arabia. Electronic address: sowali@kau.edu.sa","institution_ids":["https://openalex.org/I185163786","https://openalex.org/I4210111472"]},{"raw_affiliation_string":"Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University & Sleep Medicine and Research Center, King Abdulaziz University Hospital, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786","https://openalex.org/I4210111472"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5050643416"],"corresponding_institution_ids":["https://openalex.org/I185163786","https://openalex.org/I4210111472"],"apc_list":{"value":4350,"currency":"USD","value_usd":4350},"apc_paid":null,"fwci":7.8641,"has_fulltext":false,"cited_by_count":83,"citation_normalized_percentile":{"value":0.96900857,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"15","issue":"11","first_page":"1370","last_page":"1378"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10316","display_name":"Sleep and related disorders","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10316","display_name":"Sleep and related disorders","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11373","display_name":"Sleep and Work-Related Fatigue","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10342","display_name":"Circadian rhythm and melatonin","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2807","display_name":"Endocrine and Autonomic Systems"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/sleep-wake-patterns","display_name":"sleep-wake patterns","score":0.9300000071525574},{"id":"https://openalex.org/keywords/excessive-daytime-sleepiness","display_name":"excessive daytime sleepiness","score":0.9559999704360962},{"id":"https://openalex.org/keywords/sleep-disturbance","display_name":"sleep disorders","score":0.8889999985694885},{"id":"https://openalex.org/keywords/sleep-quality","display_name":"sleep quality","score":0.6389999985694885},{"id":"https://openalex.org/keywords/napping","display_name":"napping","score":0.5699999928474426},{"id":"https://openalex.org/keywords/caffeine-intake","display_name":"caffeine consumption","score":0.9940000176429749},{"id":"https://openalex.org/keywords/perceived-stress","display_name":"perceived stress","score":0.8100000023841858},{"id":"https://openalex.org/keywords/academic-achievement","display_name":"academic performance","score":0.9179999828338623},{"id":"https://openalex.org/keywords/gender-differences","display_name":"gender differences","score":0.6259999871253967},{"id":"https://openalex.org/keywords/saudi-adolescents","display_name":"Saudi adolescents","score":0.6610000133514404}],"concepts":[{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.7933125495910645},{"id":"https://openalex.org/C3019903994","wikidata":"https://www.wikidata.org/wiki/Q35831","display_name":"Sleep patterns","level":3,"score":0.6446326375007629},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.4660433828830719},{"id":"https://openalex.org/C138496976","wikidata":"https://www.wikidata.org/wiki/Q175002","display_name":"Developmental psychology","level":1,"score":0.35102489590644836},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.32294705510139465},{"id":"https://openalex.org/C118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","level":1,"score":0.20079201459884644},{"id":"https://openalex.org/C522805319","wikidata":"https://www.wikidata.org/wiki/Q179965","display_name":"Electroencephalography","level":2,"score":0.119110107421875},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.10689142346382141},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.07945534586906433},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000293","descriptor_name":"Adolescent","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003430","descriptor_name":"Cross-Sectional Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","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":"D006970","descriptor_name":"Disorders of Excessive Somnolence","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false},{"descriptor_ui":"D006970","descriptor_name":"Disorders of Excessive Somnolence","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012529","descriptor_name":"Saudi Arabia","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D012737","descriptor_name":"Sex Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012892","descriptor_name":"Sleep Deprivation","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false},{"descriptor_ui":"D012892","descriptor_name":"Sleep Deprivation","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D012893","descriptor_name":"Sleep Wake Disorders","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false},{"descriptor_ui":"D012893","descriptor_name":"Sleep Wake Disorders","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"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:10.1016/j.sleep.2014.06.008","doi":"https://doi.org/10.1016/j.sleep.2014.06.008","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.sleep.2014.06.008","pdf_url":null,"source":{"id":"https://openalex.org/S183718435","display_name":"Sleep Medicine","issn_l":"1389-9457","issn":["1389-9457","1878-5506"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"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":"Sleep Medicine","raw_type":"journal-article"},{"id":"pmid:25260431","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/25260431","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":"Sleep medicine","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9537000060081482,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"sustainable_development_goals_aurora":[{"score":0.5799999833106995,"id":"https://metadata.un.org/sdg/1","display_name":"No poverty"}],"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":57,"referenced_works":["https://openalex.org/W10611043","https://openalex.org/W136702794","https://openalex.org/W141175096","https://openalex.org/W197066864","https://openalex.org/W1552568247","https://openalex.org/W1930640064","https://openalex.org/W1935344696","https://openalex.org/W1944421539","https://openalex.org/W1964572568","https://openalex.org/W1970852686","https://openalex.org/W1976990204","https://openalex.org/W1977818446","https://openalex.org/W1983937635","https://openalex.org/W1986968118","https://openalex.org/W1991530044","https://openalex.org/W1996299251","https://openalex.org/W2004872135","https://openalex.org/W2005989015","https://openalex.org/W2008285914","https://openalex.org/W2010981202","https://openalex.org/W2014880231","https://openalex.org/W2016371852","https://openalex.org/W2041722453","https://openalex.org/W2044966761","https://openalex.org/W2045813268","https://openalex.org/W2046301953","https://openalex.org/W2049942448","https://openalex.org/W2064182864","https://openalex.org/W2067211603","https://openalex.org/W2068665427","https://openalex.org/W2080215722","https://openalex.org/W2083051256","https://openalex.org/W2086728052","https://openalex.org/W2087261951","https://openalex.org/W2087937178","https://openalex.org/W2088792020","https://openalex.org/W2091088609","https://openalex.org/W2097251266","https://openalex.org/W2103526986","https://openalex.org/W2110730936","https://openalex.org/W2114524852","https://openalex.org/W2120379533","https://openalex.org/W2126011253","https://openalex.org/W2135828984","https://openalex.org/W2136338148","https://openalex.org/W2136566387","https://openalex.org/W2145606086","https://openalex.org/W2151487996","https://openalex.org/W2303544236","https://openalex.org/W2407741250","https://openalex.org/W2419180461","https://openalex.org/W3151930434","https://openalex.org/W4285719527","https://openalex.org/W4297924603","https://openalex.org/W4365786778","https://openalex.org/W6605703945","https://openalex.org/W7210279052"],"related_works":["https://openalex.org/W2897019867","https://openalex.org/W3086284116","https://openalex.org/W1917448519","https://openalex.org/W4287092135","https://openalex.org/W2120379533","https://openalex.org/W10611043","https://openalex.org/W4409692088","https://openalex.org/W1552568247","https://openalex.org/W136702794","https://openalex.org/W3145357262"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":16},{"year":2020,"cited_by_count":11},{"year":2019,"cited_by_count":10},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":8},{"year":2016,"cited_by_count":8},{"year":2015,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}