{"doi":"10.1155/2020/2108362","title":"Utilization of Radiographic Imaging for Infant Hydronephrosis over the First 12 Months of Life","abstract":"Purpose . The workup and surveillance strategies for infant hydronephrosis (HN) vary, although this could be due to grade-dependent differences in imaging intensity. We aimed to describe the frequency of imaging studies for HN within the first year of life, stratified by initial HN grade, within a large regional healthcare system. Study Design and Data Source . Retrospective cohort using Intermountain Healthcare Data Warehouse. Inclusion criteria: (1) birth between 1/1/2005 and 12/31/2013, (2) CPT code for HN, and (3) ultrasound (U/S) confirmed HN within four months of birth. Data Collection . Grade of HN on initial postnatal U/S; number of HN-associated radiologic studies (renal U/Ss, voiding cystourethrograms (VCUGs), and diuretic renal scans); demographic and medical variables. Primary Outcome . Sum of radiologic studies within the first year of life or prior to pyeloplasty. Statistical Analysis . Multivariate poisson regression to analyze association between the primary outcome and the initial HN grade. Results . Of 1,380 subjects (993 males and 387 females), 990 (72%), 230 (17%), and 160 (12%) had mild, moderate, and severe HN, respectively. Compared with those with mild HN, patients with moderate (RR: 1.57; 95% CI: 1.42–1.73) and severe (RR: 2.09; 95% CI: 1.88–2.32) HN had a significantly higher rate of imaging use over 12 months (or prior to surgery) after controlling for potential confounders. Conclusions . In a large regional healthcare system, imaging use for HN is proportional to its initial grade. This suggests that within our system, clinicians treating this condition are using a risk-stratified approach to imaging.","journal":"Advances in Urology","year":2020,"id":112454,"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":3,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.7238,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":437763,"name":"Patrick C. Cartwright","orcid":"0000-0001-6835-7231","position":1,"is_corresponding":false},{"id":517055,"name":"Glen A. Lau","orcid":null,"position":2,"is_corresponding":false},{"id":531956,"name":"Mark Ebert","orcid":"0000-0003-2053-8302","position":3,"is_corresponding":false},{"id":531957,"name":"Nora F. Fino","orcid":"0000-0002-6209-1740","position":4,"is_corresponding":false},{"id":302604,"name":"Flory L. Nkoy","orcid":"0000-0002-8954-8288","position":5,"is_corresponding":false},{"id":355268,"name":"Rachel Hess","orcid":"0000-0003-2545-8504","position":6,"is_corresponding":false},{"id":378974,"name":"Anthony J. Schaeffer","orcid":"0000-0002-5546-5118","position":0,"is_corresponding":true}],"reference_count":30,"raw_metadata":null,"created_at":"2026-07-18T23:13:13.874980Z","pmid":"32802050","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":[]}