Sex Difference of Urinary Osmolality in German Children
Background/Aims: Origin of sex difference in urinary osmolality. Methods: In 495 healthy children aged 4.0–14.9 years participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) study (247 boys, 248 girls), the water intake recorded in 24-hour weighed dietary record...
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| Veröffentlicht in: | American journal of nephrology 2002-07, Vol.22 (4), p.352-355 |
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| creator | Ebner, Arno Manz, Friedrich |
| description | Background/Aims: Origin of sex difference in urinary osmolality. Methods: In 495 healthy children aged 4.0–14.9 years participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) study (247 boys, 248 girls), the water intake recorded in 24-hour weighed dietary records along with urinary volume, osmolality and free water reserve in 24-hour urine samples from the same day as the dietary record were determined. Results: Boys showed a significantly higher energy intake, total water intake, urinary osmolality and osmolar load than girls but no increase in urinary volume. When referred to energy intake, mean urinary volume and mean free water reserve were significantly higher in girls than boys. Girls could have a preference for food with a higher water density and lower non-renal water losses. Conclusion: German girls of the DONALD study displayed a lower urinary osmolality than German boys due to a relatively higher urinary volume. The sex difference could be caused by a higher water density of the ingested food (ml/kcal) and a lower insensible water loss (ml/kcal) in girls than boys. |
| doi_str_mv | 10.1159/000065226 |
| format | Article |
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Methods: In 495 healthy children aged 4.0–14.9 years participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) study (247 boys, 248 girls), the water intake recorded in 24-hour weighed dietary records along with urinary volume, osmolality and free water reserve in 24-hour urine samples from the same day as the dietary record were determined. Results: Boys showed a significantly higher energy intake, total water intake, urinary osmolality and osmolar load than girls but no increase in urinary volume. When referred to energy intake, mean urinary volume and mean free water reserve were significantly higher in girls than boys. Girls could have a preference for food with a higher water density and lower non-renal water losses. Conclusion: German girls of the DONALD study displayed a lower urinary osmolality than German boys due to a relatively higher urinary volume. The sex difference could be caused by a higher water density of the ingested food (ml/kcal) and a lower insensible water loss (ml/kcal) in girls than boys.</description><identifier>ISSN: 0250-8095</identifier><identifier>EISSN: 1421-9670</identifier><identifier>DOI: 10.1159/000065226</identifier><identifier>PMID: 12169867</identifier><identifier>CODEN: AJNED9</identifier><language>eng</language><publisher>Basel, Switzerland: Karger</publisher><subject>Adolescent ; Analysis. Health state ; Biological and medical sciences ; Child ; Child, Preschool ; Clinical Study ; Drinking - physiology ; Energy Intake - physiology ; Epidemiology ; Female ; General aspects ; Germany ; Humans ; Male ; Medical sciences ; Osmolar Concentration ; Public health. Hygiene ; Public health. Hygiene-occupational medicine ; Sex Factors ; Time Factors ; Urine - physiology ; Urodynamics</subject><ispartof>American journal of nephrology, 2002-07, Vol.22 (4), p.352-355</ispartof><rights>2002 S. Karger AG, Basel</rights><rights>2002 INIST-CNRS</rights><rights>Copyright 2002 S. Karger AG, Basel</rights><rights>Copyright S. Karger AG Jul/Aug 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-acc39a57c65948d6e46b2a4ec5848103fcc2d5ffc18df8b03274d184cbcf2c403</citedby><cites>FETCH-LOGICAL-c385t-acc39a57c65948d6e46b2a4ec5848103fcc2d5ffc18df8b03274d184cbcf2c403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,2423,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13841234$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12169867$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ebner, Arno</creatorcontrib><creatorcontrib>Manz, Friedrich</creatorcontrib><title>Sex Difference of Urinary Osmolality in German Children</title><title>American journal of nephrology</title><addtitle>Am J Nephrol</addtitle><description>Background/Aims: Origin of sex difference in urinary osmolality. Methods: In 495 healthy children aged 4.0–14.9 years participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) study (247 boys, 248 girls), the water intake recorded in 24-hour weighed dietary records along with urinary volume, osmolality and free water reserve in 24-hour urine samples from the same day as the dietary record were determined. Results: Boys showed a significantly higher energy intake, total water intake, urinary osmolality and osmolar load than girls but no increase in urinary volume. When referred to energy intake, mean urinary volume and mean free water reserve were significantly higher in girls than boys. Girls could have a preference for food with a higher water density and lower non-renal water losses. Conclusion: German girls of the DONALD study displayed a lower urinary osmolality than German boys due to a relatively higher urinary volume. The sex difference could be caused by a higher water density of the ingested food (ml/kcal) and a lower insensible water loss (ml/kcal) in girls than boys.</description><subject>Adolescent</subject><subject>Analysis. Health state</subject><subject>Biological and medical sciences</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Clinical Study</subject><subject>Drinking - physiology</subject><subject>Energy Intake - physiology</subject><subject>Epidemiology</subject><subject>Female</subject><subject>General aspects</subject><subject>Germany</subject><subject>Humans</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Osmolar Concentration</subject><subject>Public health. Hygiene</subject><subject>Public health. Hygiene-occupational medicine</subject><subject>Sex Factors</subject><subject>Time Factors</subject><subject>Urine - physiology</subject><subject>Urodynamics</subject><issn>0250-8095</issn><issn>1421-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNpt0E1LwzAYB_AgipvTg2dBykDBQzXvSY9j6lSGO-jOJU0T7ezLTFZw397oqgMxl-eQH8_LH4BjBC8RYskVDI8zjPkO6COKUZxwAXdBH2IGYwkT1gMH3i8gRFhCsQ96CCOeSC76QDyZj-i6sNY4U2sTNTaau6JWbh3NfNWUqixW66ioo4lxlaqj8WtR5oEegj2rSm-OujoA89ub5_FdPJ1N7sejaayJZKtYaU0SxYTmLKEy54byDCtqNJNUIkis1jhn1mokcyszSLCgOZJUZ9piTSEZgPNN36Vr3lvjV2lVeG3KUtWmaX0qUCIFETjA4R-4aFpXh91STHhCqYQkoIsN0q7x3hmbLl1RhWNTBNOvKNPfKIM97Rq2WWXyreyyC-CsA8prVVqnal34rSOSIkxocCcb96bci3G_4GfM8N_f0cPjN0iXuSWffu6Nbw</recordid><startdate>20020701</startdate><enddate>20020701</enddate><creator>Ebner, Arno</creator><creator>Manz, Friedrich</creator><general>Karger</general><general>S. 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Health state</topic><topic>Biological and medical sciences</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Clinical Study</topic><topic>Drinking - physiology</topic><topic>Energy Intake - physiology</topic><topic>Epidemiology</topic><topic>Female</topic><topic>General aspects</topic><topic>Germany</topic><topic>Humans</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Osmolar Concentration</topic><topic>Public health. Hygiene</topic><topic>Public health. Hygiene-occupational medicine</topic><topic>Sex Factors</topic><topic>Time Factors</topic><topic>Urine - physiology</topic><topic>Urodynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ebner, Arno</creatorcontrib><creatorcontrib>Manz, Friedrich</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Virology and AIDS Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Nursing & Allied Health Premium</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of nephrology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ebner, Arno</au><au>Manz, Friedrich</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sex Difference of Urinary Osmolality in German Children</atitle><jtitle>American journal of nephrology</jtitle><addtitle>Am J Nephrol</addtitle><date>2002-07-01</date><risdate>2002</risdate><volume>22</volume><issue>4</issue><spage>352</spage><epage>355</epage><pages>352-355</pages><issn>0250-8095</issn><eissn>1421-9670</eissn><coden>AJNED9</coden><abstract>Background/Aims: Origin of sex difference in urinary osmolality. Methods: In 495 healthy children aged 4.0–14.9 years participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) study (247 boys, 248 girls), the water intake recorded in 24-hour weighed dietary records along with urinary volume, osmolality and free water reserve in 24-hour urine samples from the same day as the dietary record were determined. Results: Boys showed a significantly higher energy intake, total water intake, urinary osmolality and osmolar load than girls but no increase in urinary volume. When referred to energy intake, mean urinary volume and mean free water reserve were significantly higher in girls than boys. Girls could have a preference for food with a higher water density and lower non-renal water losses. Conclusion: German girls of the DONALD study displayed a lower urinary osmolality than German boys due to a relatively higher urinary volume. The sex difference could be caused by a higher water density of the ingested food (ml/kcal) and a lower insensible water loss (ml/kcal) in girls than boys.</abstract><cop>Basel, Switzerland</cop><pub>Karger</pub><pmid>12169867</pmid><doi>10.1159/000065226</doi><tpages>4</tpages></addata></record> |
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| ispartof | American journal of nephrology, 2002-07, Vol.22 (4), p.352-355 |
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| subjects | Adolescent Analysis. Health state Biological and medical sciences Child Child, Preschool Clinical Study Drinking - physiology Energy Intake - physiology Epidemiology Female General aspects Germany Humans Male Medical sciences Osmolar Concentration Public health. Hygiene Public health. Hygiene-occupational medicine Sex Factors Time Factors Urine - physiology Urodynamics |
| title | Sex Difference of Urinary Osmolality in German Children |
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