{"doi":"10.1515/jpem-2022-0462","title":"The association between hydration status and body composition in healthy children and adolescents","abstract":"OBJECTIVES: Children 10-20 years old in the US are currently obese, showing suboptimal hydration as 60% fail to meet the US Dietary Reference Intakes for water. Studies have shown a significant inverse association between hydration status and body composition in children, although most failed to use the Dual-X-Ray Absorptiometry Scan (DEXA), the gold standard for body composition. Limited studies used an objective marker to measure hydration, such as urine specific gravity (USG) from a 24-h urine collection. Therefore, this study aimed to examine the association between hydration status (measured from USG in a 24-h urine sample and assessed from three 24-h dietary recalls) and body fat % and lean mass (assessed from a DEXA scan) in children (10-13 years, n=34) and adolescents (18-20 years, n=34). METHODS: Body composition was measured using DEXA, total water intake (mL/d) was assessed from three 24-h dietary recalls and analyzed using the Nutrition Data System for Research (NDSR). Hydration status was objectively measured using USG via 24-h urine collection. RESULTS: Overall body fat % was 31.7 ± 7.31, total water intake was 1746 ± 762.0 mL/d, and USG score was 1.020 ± 0.011 uG. Linear regressions showed significance between total water intake and lean mass (B=12.2, p<0.05). Logistic regressions showed no significant association between body composition and USG and total water intake. CONCLUSIONS: Findings showed total water intake was significantly associated with lean mass. Future research should be conducted to explore other objective markers of hydration and with a larger sample.","journal":"Journal of Pediatric Endocrinology and Metabolism","year":2023,"id":363759,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":7,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9603,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2023-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":429795,"name":"María Angélica Trak‐Fellermeier","orcid":"0000-0003-2152-2935","position":1,"is_corresponding":false},{"id":968712,"name":"Alison Macchi","orcid":"0000-0002-6134-9500","position":2,"is_corresponding":false},{"id":1118182,"name":"Rodolfo Galván","orcid":"0000-0002-3724-3466","position":3,"is_corresponding":false},{"id":348053,"name":"Zoran Bursac","orcid":"0000-0001-9306-0907","position":4,"is_corresponding":false},{"id":429797,"name":"Fatma G. Huffman","orcid":"0000-0001-8513-1648","position":5,"is_corresponding":false},{"id":1118183,"name":"Juan P. Liuzzi","orcid":"0000-0001-7060-4393","position":6,"is_corresponding":false},{"id":429794,"name":"Cristina Palacios","orcid":"0000-0001-9437-0376","position":7,"is_corresponding":false},{"id":689155,"name":"Priscilla Clayton","orcid":"0000-0001-9317-3661","position":0,"is_corresponding":true}],"reference_count":38,"raw_metadata":null,"created_at":"2026-07-19T01:14:32.510714Z","pmid":"37006164","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}