{"doi":"10.1093/sleep/zsab059","title":"Associations between longitudinal trajectories of insomnia symptoms and sleep duration with objective physical function in postmenopausal women: the Study of Women’s Health Across the Nation","abstract":"STUDY OBJECTIVES: Examine the association between trajectories of self-reported insomnia symptoms and sleep duration over 13 years with objective physical function. METHODS: We utilized data from 1,627 Study of Women's Health Across the Nation participants, aged 61.9 ± 2.7 years at the end of the 13-year follow-up. Latent class growth models identified trajectories of insomnia symptoms (trouble falling asleep, frequent night-time awakenings, and/or early morning awakening) and sleep duration over 13 years. Physical function tests were performed at the end of the 13-year period: 40-ft walk, 4-m walk, repeated chair stand, grip strength, and balance. Multivariable regression analyses examined each physical function measure according to the insomnia symptom or sleep duration trajectory group. RESULTS: Five insomnia symptom trajectories and two sleep duration trajectories were identified. Women with a consistently high likelihood of insomnia symptoms and women with a decreased likelihood of insomnia symptoms (i.e. improving) had slower gait speed (3.5% slower 40-ft walk [consistently high], 3.7% slower 4-m walk [improving]; each p ≤ .05) than those with a consistently low likelihood of insomnia symptoms. In contrast, women with a steep increase in the likelihood of insomnia symptoms over time and women with persistent insufficient sleep duration had lower odds of having a balance problem (odds ratio [OR] = 0.36 and OR = 0.61, respectively; each p < .02) compared to those with a consistently low likelihood of insomnia symptoms and those with persistent sufficient sleep duration, respectively. CONCLUSION: These results suggest that women's sleep during midlife has important implications for maintaining physical function during the transition into older adulthood.","journal":"SLEEP","year":2021,"id":179247,"datarank":0.7875662667095722,"base_score":2.9444389791664403,"endowment":2.9444389791664403,"self_citation_contribution":0.44166584687496613,"citation_network_contribution":0.345900419834606,"self_endowment_contribution":0.44166584687496613,"citer_contribution":0.345900419834606,"corpus_percentile":74.433356540574,"corpus_rank":3306,"citation_count":18,"citer_count":16,"citers_with_citation_signal":14,"citers_with_endowment":14,"datacite_reuse_total":0,"is_dataset":true,"is_dataset_confidence":0.8083,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2021-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":355269,"name":"Alicia Colvin","orcid":"0000-0001-5638-2747","position":1,"is_corresponding":false},{"id":437799,"name":"Kelley Pettee Gabriel","orcid":"0000-0003-4986-7927","position":2,"is_corresponding":false},{"id":298232,"name":"Carrie Karvonen‐Gutierrez","orcid":"0000-0002-1950-5397","position":3,"is_corresponding":false},{"id":109422,"name":"Jane A. Cauley","orcid":"0000-0003-0752-4408","position":4,"is_corresponding":false},{"id":312684,"name":"Martica H. Hall","orcid":"0000-0003-0642-2098","position":5,"is_corresponding":false},{"id":288210,"name":"Karen A. Matthews","orcid":"0000-0002-5121-3765","position":6,"is_corresponding":false},{"id":341543,"name":"Kristine Ruppert","orcid":"0000-0002-3008-6584","position":7,"is_corresponding":false},{"id":405583,"name":"Genevieve Neal‐Perry","orcid":null,"position":8,"is_corresponding":false},{"id":341578,"name":"Elsa S. Strotmeyer","orcid":"0000-0002-4093-6036","position":9,"is_corresponding":false},{"id":131153,"name":"Barbara Sternfeld","orcid":null,"position":10,"is_corresponding":false},{"id":449413,"name":"Christopher E. Kline","orcid":"0000-0003-1025-9430","position":0,"is_corresponding":true}],"reference_count":64,"raw_metadata":null,"created_at":"2026-07-18T23:47:44.875897Z","pmid":"33705558","pmcid":"PMC8361301","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":[]}