{"id":"https://openalex.org/W2086715775","doi":"https://doi.org/10.1038/sj.ejcn.1600638","title":"Folate, vitamin D, and iron intakes are low among pregnant Finnish women","display_name":"Folate, vitamin D, and iron intakes are low among pregnant Finnish women","publication_year":1998,"publication_date":"1998-09-30","ids":{"openalex":"https://openalex.org/W2086715775","doi":"https://doi.org/10.1038/sj.ejcn.1600638","mag":"2086715775","pmid":"https://pubmed.ncbi.nlm.nih.gov/9805222"},"language":"en","primary_location":{"id":"doi:10.1038/sj.ejcn.1600638","doi":"https://doi.org/10.1038/sj.ejcn.1600638","is_oa":false,"landing_page_url":"https://doi.org/10.1038/sj.ejcn.1600638","pdf_url":null,"source":{"id":"https://openalex.org/S126770807","display_name":"European Journal of Clinical Nutrition","issn_l":"0954-3007","issn":["0954-3007","1476-5640"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Clinical Nutrition","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/A5033021150","display_name":"Maijaliisa Erkkola","orcid":"https://orcid.org/0000-0002-6966-1523","observed_orcids":["https://orcid.org/0000-0002-6966-1523"]},"institutions":[{"id":"https://openalex.org/I166825849","display_name":"Tampere University","ror":"https://ror.org/033003e23","country_code":"FI","type":"education","lineage":["https://openalex.org/I166825849"]},{"id":"https://openalex.org/I4387153886","display_name":"University of Tampere","ror":"https://ror.org/05p6qqk79","country_code":"FI","type":"education","lineage":["https://openalex.org/I166825849","https://openalex.org/I4387153886"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"M Erkkola","raw_affiliation_strings":["School of Public Health, Unit of Epidemiology, University of Tampere, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Public Health, Unit of Epidemiology, University of Tampere, Finland","institution_ids":["https://openalex.org/I166825849","https://openalex.org/I4387153886"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007251318","display_name":"M Karppinen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210165084","display_name":"Oulu Deaconess Institute","ror":"https://ror.org/05tt05r27","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I4210165084"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"M Karppinen","raw_affiliation_strings":["Oulu Deaconess Institute, Oulu, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Oulu Deaconess Institute, Oulu, Finland","institution_ids":["https://openalex.org/I4210165084"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023823125","display_name":"Asko J\u00e4rvinen","orcid":"https://orcid.org/0000-0002-1906-7665","observed_orcids":["https://orcid.org/0000-0002-1906-7665"]},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"A J\u00e4rvinen","raw_affiliation_strings":["Department of Applied Chemistry and Microbiology, Division of Nutrition, University of Helsinki, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Applied Chemistry and Microbiology, Division of Nutrition, University of Helsinki, Finland","institution_ids":["https://openalex.org/I133731052"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000141478","display_name":"Mikael Knip","orcid":"https://orcid.org/0000-0003-0474-0033","observed_orcids":["https://orcid.org/0000-0003-0474-0033"]},"institutions":[{"id":"https://openalex.org/I4387153886","display_name":"University of Tampere","ror":"https://ror.org/05p6qqk79","country_code":"FI","type":"education","lineage":["https://openalex.org/I166825849","https://openalex.org/I4387153886"]},{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"M Knip","raw_affiliation_strings":["Department of Paediatrics, University of Oulu, Finland","Medical School, University of Tampere, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Paediatrics, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"Medical School, University of Tampere, Finland","institution_ids":["https://openalex.org/I4387153886"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046739446","display_name":"Suvi Mirjami Virtanen","orcid":"https://orcid.org/0000-0001-8928-0878","observed_orcids":["https://orcid.org/0000-0001-8928-0878"]},"institutions":[{"id":"https://openalex.org/I166825849","display_name":"Tampere University","ror":"https://ror.org/033003e23","country_code":"FI","type":"education","lineage":["https://openalex.org/I166825849"]},{"id":"https://openalex.org/I4387153886","display_name":"University of Tampere","ror":"https://ror.org/05p6qqk79","country_code":"FI","type":"education","lineage":["https://openalex.org/I166825849","https://openalex.org/I4387153886"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"SM Virtanen","raw_affiliation_strings":["School of Public Health, Unit of Epidemiology, University of Tampere, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Public Health, Unit of Epidemiology, University of Tampere, Finland","institution_ids":["https://openalex.org/I166825849","https://openalex.org/I4387153886"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3590,"currency":"USD","value_usd":3590},"apc_paid":null,"fwci":2.5933,"has_fulltext":false,"cited_by_count":81,"citation_normalized_percentile":{"value":0.89269066,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":99},"biblio":{"volume":"52","issue":"10","first_page":"742","last_page":"748"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10866","display_name":"Nutritional Studies and Diet","score":0.5609999895095825,"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/T10866","display_name":"Nutritional Studies and Diet","score":0.5609999895095825,"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/T13112","display_name":"Nutrition and Health Studies","score":0.27489998936653137,"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/T12873","display_name":"Nutrition, Health and Food Behavior","score":0.07540000230073929,"subfield":{"id":"https://openalex.org/subfields/2916","display_name":"Nutrition and Dietetics"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/pregnancy","display_name":"pregnancy","score":0.5519999861717224},{"id":"https://openalex.org/keywords/food-consumption","display_name":"dietary intake","score":0.7120000123977661},{"id":"https://openalex.org/keywords/folic-acid","display_name":"folic acid","score":0.9089999794960022},{"id":"https://openalex.org/keywords/vitamin-d","display_name":"vitamin D","score":1.0},{"id":"https://openalex.org/keywords/iron","display_name":"iron","score":0.9750000238418579},{"id":"https://openalex.org/keywords/dietary-supplements","display_name":"dietary supplements","score":0.9470000267028809},{"id":"https://openalex.org/keywords/nutritional-adequacy","display_name":"nutritional adequacy","score":0.6489999890327454},{"id":"https://openalex.org/keywords/educational-attainment","display_name":"educational attainment","score":0.7210000157356262},{"id":"https://openalex.org/keywords/age-differences","display_name":"age differences","score":0.8859999775886536},{"id":"https://openalex.org/keywords/energy-intake","display_name":"energy intake","score":0.40799999237060547},{"id":"https://openalex.org/keywords/macronutrient-composition","display_name":"macronutrient composition","score":0.8040000200271606},{"id":"https://openalex.org/keywords/polyunsaturated-fatty-acids","display_name":"polyunsaturated fatty acids","score":0.7129999995231628},{"id":"https://openalex.org/keywords/dietary-fiber","display_name":"dietary fiber","score":0.9919999837875366},{"id":"https://openalex.org/keywords/sugar-intake","display_name":"sugar consumption","score":0.9049999713897705}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6636936068534851},{"id":"https://openalex.org/C2780022331","wikidata":"https://www.wikidata.org/wiki/Q199678","display_name":"Vitamin C","level":2,"score":0.6187347173690796},{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.6147902011871338},{"id":"https://openalex.org/C31903555","wikidata":"https://www.wikidata.org/wiki/Q1637030","display_name":"Food science","level":1,"score":0.5692257881164551},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.5186416506767273},{"id":"https://openalex.org/C2776940978","wikidata":"https://www.wikidata.org/wiki/Q34956","display_name":"Vitamin","level":2,"score":0.5071218013763428},{"id":"https://openalex.org/C37281782","wikidata":"https://www.wikidata.org/wiki/Q1412867","display_name":"Dietary Reference Intake","level":3,"score":0.4633055329322815},{"id":"https://openalex.org/C2776155809","wikidata":"https://www.wikidata.org/wiki/Q130365","display_name":"Riboflavin","level":2,"score":0.44548267126083374},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.42989981174468994},{"id":"https://openalex.org/C2777108408","wikidata":"https://www.wikidata.org/wiki/Q11002","display_name":"Sugar","level":2,"score":0.4264904856681824},{"id":"https://openalex.org/C19038510","wikidata":"https://www.wikidata.org/wiki/Q2005087","display_name":"Polyunsaturated fatty acid","level":3,"score":0.422294557094574},{"id":"https://openalex.org/C2908855457","wikidata":"https://www.wikidata.org/wiki/Q15121266","display_name":"Fortified Food","level":3,"score":0.4191368520259857},{"id":"https://openalex.org/C2777551382","wikidata":"https://www.wikidata.org/wiki/Q141180","display_name":"Vitamin E","level":3,"score":0.4121428430080414},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.2447425127029419},{"id":"https://openalex.org/C543025807","wikidata":"https://www.wikidata.org/wiki/Q61476","display_name":"Fatty acid","level":2,"score":0.14500382542610168},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.11446863412857056},{"id":"https://openalex.org/C2778004101","wikidata":"https://www.wikidata.org/wiki/Q133948","display_name":"Antioxidant","level":2,"score":0.08148732781410217},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000375","descriptor_name":"Aging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000818","descriptor_name":"Animals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002149","descriptor_name":"Energy Intake","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004034","descriptor_name":"Diet Surveys","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004040","descriptor_name":"Dietary Carbohydrates","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":false},{"descriptor_ui":"D004041","descriptor_name":"Dietary Fats","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":false},{"descriptor_ui":"D004043","descriptor_name":"Dietary Fiber","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":false},{"descriptor_ui":"D004044","descriptor_name":"Dietary Proteins","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":false},{"descriptor_ui":"D004522","descriptor_name":"Educational Status","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":"D005387","descriptor_name":"Finland","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005492","descriptor_name":"Folic Acid","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009747","descriptor_name":"Nutritional Physiological Phenomena","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011247","descriptor_name":"Pregnancy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011263","descriptor_name":"Pregnancy Trimester, Third","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D014807","descriptor_name":"Vitamin D","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":true},{"descriptor_ui":"D019266","descriptor_name":"Iron, Dietary","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":true},{"descriptor_ui":"D019587","descriptor_name":"Dietary Supplements","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":3,"locations":[{"id":"doi:10.1038/sj.ejcn.1600638","doi":"https://doi.org/10.1038/sj.ejcn.1600638","is_oa":false,"landing_page_url":"https://doi.org/10.1038/sj.ejcn.1600638","pdf_url":null,"source":{"id":"https://openalex.org/S126770807","display_name":"European Journal of Clinical Nutrition","issn_l":"0954-3007","issn":["0954-3007","1476-5640"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Clinical Nutrition","raw_type":"journal-article"},{"id":"pmid:9805222","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/9805222","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":"European journal of clinical nutrition","raw_type":"Journal Article"},{"id":"pmh:oai:www.julkari.fi:10024/81151","doi":null,"is_oa":false,"landing_page_url":"http://www.julkari.fi/handle/10024/81151","pdf_url":null,"source":{"id":"https://openalex.org/S4306402058","display_name":"STM:n Hallinnonalan avoin julkaisuarkisto (Julkari)","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"A"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.98580002784729,"id":"https://metadata.un.org/sdg/3"},{"display_name":"Zero hunger","score":0.9208999872207642,"id":"https://metadata.un.org/sdg/2"}],"sustainable_development_goals_aurora":[{"display_name":"Zero hunger","score":0.5,"id":"https://metadata.un.org/sdg/2"}],"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":22,"referenced_works":["https://openalex.org/W99281158","https://openalex.org/W265147543","https://openalex.org/W592017104","https://openalex.org/W1251228588","https://openalex.org/W1545268114","https://openalex.org/W1874044193","https://openalex.org/W1995495785","https://openalex.org/W2004584199","https://openalex.org/W2014078068","https://openalex.org/W2021660173","https://openalex.org/W2050193030","https://openalex.org/W2082125718","https://openalex.org/W2083810127","https://openalex.org/W2093188019","https://openalex.org/W2115570150","https://openalex.org/W2137506583","https://openalex.org/W2167976004","https://openalex.org/W2332651540","https://openalex.org/W2410990064","https://openalex.org/W2551221020","https://openalex.org/W2797123347","https://openalex.org/W3194673308"],"related_works":["https://openalex.org/W2132601359","https://openalex.org/W87295651","https://openalex.org/W2107729912","https://openalex.org/W2461993140","https://openalex.org/W4385751692","https://openalex.org/W2139322844","https://openalex.org/W2896679845","https://openalex.org/W2492233097","https://openalex.org/W2626936475","https://openalex.org/W7155754389"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":4}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}