{"doi":"10.1371/journal.pone.0241446","title":"Associations between daily ambient temperature and sedentary time among children 4–6 years old in Mexico City","abstract":"BACKGROUND: Sedentary behavior is a worldwide public health concern. There is consistent and growing evidence linking sedentary behavior to mortality and morbidity. Early monitoring and assessment of environmental factors associated with sedentary behaviors at a young age are important initial steps for understanding children's sedentary time and identifying pertinent interventions. OBJECTIVE: This study examines the association between daily temperature (maximum, mean, minimum, and diurnal variation) and all-day sedentary time among 4-6 year old children in Mexico City (n = 559) from the year 2013 to 2015. METHODS: We developed a spatiotemporally resolved hybrid satellite-based land use regression temperature model and calculated percent daily sedentary time from aggregating 10-second epoch vertical counts captured by accelerometers that participants wore for one week. We modeled generalized additive models (GAMs), one for each temperature type as a covariate (maximum, mean, minimum, and diurnal variation). All GAMs included percent all-day sedentary time as the outcome and participant-level random intercepts to account for repeated measures of sedentary time. Our models were adjusted for demographic factors and environmental exposures. RESULTS: Daily maximum temperature, mean temperature, and diurnal variation have significant negative linear relationships with all-day sedentary time (p<0.01). There is no significant association between daily minimum temperature and all-day sedentary time. Children have on average 0.26% less daily sedentary time (approximately 2.2 minutes) for each 1°C increase in ambient maximum temperature (range 7.1-30.2°C), 0.27% less daily sedentary time (approximately 2.3 minutes) for each 1°C increase in ambient mean temperature (range 4.3-22.2°C), and 0.23% less daily sedentary time (approximately 2.0 minutes) for each 1°C increase in diurnal variation (range 3.0-21.6°C). CONCLUSIONS: These results are contrary to our hypothesis in which we expected a curvilinear relationship between temperature (maximum, mean, minimum, and diurnal variation) and sedentary time. Our findings suggest that temperature is an important environmental factor that influences children's sedentary behavior.","journal":"PLoS ONE","year":2020,"id":107660,"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":6,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9484,"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":340031,"name":"Alejandra Cantoral","orcid":"0000-0002-1397-8476","position":1,"is_corresponding":false},{"id":307119,"name":"Martha María Téllez‐Rojo","orcid":"0000-0003-3322-3334","position":2,"is_corresponding":false},{"id":489819,"name":"Ivan Pantic","orcid":"0000-0002-3178-1482","position":3,"is_corresponding":false},{"id":239883,"name":"Emily Oken","orcid":"0000-0003-2513-3339","position":4,"is_corresponding":false},{"id":517339,"name":"Katherine Svensson","orcid":"0000-0002-4330-9193","position":5,"is_corresponding":false},{"id":271563,"name":"Michael Dorman","orcid":"0000-0001-6450-8047","position":6,"is_corresponding":false},{"id":517340,"name":"Iván Gutiérrez-Ávila","orcid":"0000-0001-8040-2007","position":7,"is_corresponding":false},{"id":271562,"name":"Johnathan Rush","orcid":"0000-0002-6853-8494","position":8,"is_corresponding":false},{"id":518247,"name":"Nia McRae","orcid":null,"position":9,"is_corresponding":false},{"id":54933,"name":"Robert O. Wright","orcid":"0000-0003-1180-6459","position":10,"is_corresponding":false},{"id":282206,"name":"Andrea Baccarelli","orcid":"0000-0002-3436-0640","position":11,"is_corresponding":false},{"id":271566,"name":"Itai Kloog","orcid":"0000-0003-1708-7440","position":12,"is_corresponding":false},{"id":240832,"name":"Allan C. Just","orcid":"0000-0003-4312-5957","position":13,"is_corresponding":false},{"id":423583,"name":"Sandy Wong","orcid":"0000-0001-6487-1647","position":0,"is_corresponding":true}],"reference_count":64,"raw_metadata":null,"created_at":"2026-07-18T23:12:39.385256Z","pmid":"33125398","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":[]}