{"doi":"10.1111/1475-6773.70078","title":"Children's Enrollment in Children's Health Insurance Program ( <scp>CHIP</scp> ) Coverage During the Medicaid Unwinding","abstract":"OBJECTIVE: To examine changes in children's Medicaid and CHIP enrollment during the Families First Coronavirus Response Act unwinding and assess whether CHIP enrollment offsets Medicaid declines. STUDY SETTING AND DESIGN: We used linear probability models with monthly indicators to estimate changes in enrollment from April 2023 to September 2024 overall and by CHIP structure type. DATA SOURCES AND ANALYTIC SAMPLE: We used monthly children's enrollment data from the U.S. Centers for Medicare & Medicaid Services for 32 states and the District of Columbia. PRINCIPAL FINDINGS: During the unwinding, Medicaid enrollment declined from 48.1% to 41.2% of children, while CHIP enrollment remained stable (8.7% to 8.6%). We found average declines of 62,032 (95% confidence interval [CI]: -108,018 to -16,045) Medicaid-enrolled children per state (6.5 percentage points [pp], 95% CI: -8.1 to -5.0). Medicaid declines were larger in states with combination CHIP (-8.7 pp, 95% CI: -10.3 to -7.2) than Medicaid expansion CHIP (-4.5 pp, 95% CI: -6.0 to -3.1). We found no evidence of significant changes in CHIP enrollment overall or by CHIP structure. CONCLUSIONS: Children's Medicaid enrollment fell sharply without offsetting CHIP gains during the unwinding, underscoring the need for policies that prevent administrative disenrollment and ensure seamless coverage transitions.","journal":"Health Services Research","year":2025,"id":585874,"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":0.0,"corpus_rank":10062,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":true,"is_dataset_confidence":0.7581,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2025-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1270398,"name":"Daniel B. Nelson","orcid":"0000-0001-9249-4439","position":1,"is_corresponding":false},{"id":689062,"name":"Aditi Vasan","orcid":"0000-0001-8992-5672","position":2,"is_corresponding":false},{"id":712853,"name":"Erica L. Eliason","orcid":"0000-0002-5246-3176","position":0,"is_corresponding":true}],"reference_count":7,"raw_metadata":null,"created_at":"2026-07-19T02:59:24.273134Z","pmid":"41417948","pmcid":"PMC12932016","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":[]}