{"doi":"10.1136/bmjopen-2022-070291","title":"Cross-sectional study examining household factors associated with SARS-CoV-2 seropositivity in low-income children in Los Angeles","abstract":"OBJECTIVES: This study aims to quantify the degree to which an underserved, Hispanic population in Los Angeles is impacted by SARS-CoV-2, and determine factors associated with paediatric seropositivity. DESIGN: Cross-sectional. SETTING: AltaMed, a Federally Qualified Health Center in Los Angeles. PARTICIPANTS: A random sample of households who had received healthcare at AltaMed Medical Group was invited to participate. Households with at least one adult and one paediatric participant between 5 and 17 years of age were eligible to participate. Consented participants completed a survey on social determinants of health and were tested for antibodies using Abbott Architect SARS-CoV-2-IgG and SARS-CoV-2-IgM tests. PRIMARY OUTCOME MEASURE: Seropositive status. RESULTS: We analysed 390 adults (mean age in years, 38.98 (SD 12.11)) and 332 paediatric participants (11.26 (SD 3.51)) from 196 households. Estimated seropositivity was 52.11% (95% CI 49.61% to 55.19%) in paediatric participants and 63.58% (95% CI 60.39% to 65.24%) in adults. Seropositivity was 11.47% (95% CI 6.82% to 14.09%) lower in paediatric participants, but high relative to other populations. A household member with type 2 diabetes (OR 2.94 (95% CI 1.68 to 5.14)), receipt of food stamps (OR 1.66 (95% CI 1.08 to 2.56)) and lower head-of-household education (OR 1.73 (95% CI 1.06 to 2.84)) were associated with paediatric seropositivity. CONCLUSIONS: SARS-CoV-2 seropositivity is high in Hispanic children and adolescents in Los Angeles. Food insecure households with low head-of-household education, and at least one household member with type 2 diabetes, had the highest risk. These factors may inform paediatrician COVID-19 mitigation recommendations. TRIAL REGISTRATION NUMBER: NCT04901624.","journal":"BMJ Open","year":2023,"id":384991,"datarank":0.23888817034302867,"base_score":1.0986122886681096,"endowment":1.0986122886681096,"self_citation_contribution":0.16479184330021646,"citation_network_contribution":0.07409632704281222,"self_endowment_contribution":0.16479184330021646,"citer_contribution":0.07409632704281222,"corpus_percentile":null,"corpus_rank":null,"citation_count":2,"citer_count":2,"citers_with_citation_signal":2,"citers_with_endowment":2,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.5642,"is_data_producer":true,"deposit_databanks":{"ClinicalTrials.gov":["NCT04901624"]},"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":253969,"name":"Anders H. Berg","orcid":"0000-0002-5736-0686","position":1,"is_corresponding":false},{"id":728985,"name":"Tara K. Knight","orcid":"0000-0003-2755-0494","position":2,"is_corresponding":false},{"id":1152757,"name":"Mika Kadono","orcid":"0000-0003-3978-8379","position":3,"is_corresponding":false},{"id":1152758,"name":"Emily Stewart","orcid":"0000-0003-4330-4744","position":4,"is_corresponding":false},{"id":1152759,"name":"Rajan A. Sonik","orcid":"0000-0002-3353-1938","position":5,"is_corresponding":false},{"id":1152760,"name":"Michael E. Hochman","orcid":"0000-0001-8055-6073","position":6,"is_corresponding":false},{"id":227976,"name":"Neeraj Sood","orcid":"0000-0001-9805-213X","position":7,"is_corresponding":false},{"id":446990,"name":"Jason N. Doctor","orcid":"0000-0003-3661-8745","position":0,"is_corresponding":true}],"reference_count":19,"raw_metadata":null,"created_at":"2026-07-19T01:17:48.629718Z","pmid":"37258079","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":[]}