{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T06:17:20Z","timestamp":1792822640748,"version":"4.5.0"},"reference-count":27,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2020,2,12]],"date-time":"2020-02-12T00:00:00Z","timestamp":1581465600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["15K19238"],"award-info":[{"award-number":["15K19238"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008903","name":"Ministry of Health and Welfare, Taiwan","doi-asserted-by":"publisher","award":["MOHW107-TDU-B-212-123004"],"award-info":[{"award-number":["MOHW107-TDU-B-212-123004"]}],"id":[{"id":"10.13039\/100008903","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004391","name":"China Medical University Hospital","doi-asserted-by":"publisher","award":["DMR-107-192"],"award-info":[{"award-number":["DMR-107-192"]}],"id":[{"id":"10.13039\/501100004391","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Academia Sinica Taiwan Biobank Stroke Biosignature Project","award":["BM10701010021"],"award-info":[{"award-number":["BM10701010021"]}]},{"name":"Taiwan Clinical Trial Consortium for Stroke","award":["MOST 107-2321-B-039-004"],"award-info":[{"award-number":["MOST 107-2321-B-039-004"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Background: A previous study in Japan found that monthly mean K index values were related to the monthly number of male, but not female, suicides. Correlations between geomagnetic disturbances and suicide\/depression have also been reported in countries such as Canada, South Africa, Finland, Australia, Russia, and Japan. We have previously shown that stronger geomagnetism is linked to a higher standardized mortality ratio for suicide. To date, however, no published studies have reported the correlation between geomagnetic disturbances and suicide attempts in Taiwan. Methods: Data on the monthly number of suicide attempts in Taiwan from January 1997 to December 2013 were obtained. We performed a multivariable analysis, with the number of suicide attempts as the response variable and monthly Kp10 index, F10.7 index, sulfur dioxide, carbon monoxide, ozone, fine particulate matter (PM2.5), temperature, humidity, unemployment rate, and cosmic rays as the explanatory variables. Results: The multivariable analysis showed that Kp10 index, temperature, humidity, unemployment rate, and cosmic rays were associated with the number of male suicide attempts and that Kp10 index, F10.7 index, carbon monoxide, temperature, humidity, and unemployment rate were associated with the number of female suicide attempts. Conclusion: This is the first article reporting statistically significant relationships between the monthly number of male and female suicide attempts and the monthly mean Kp10 value in Taiwan.<\/jats:p>","DOI":"10.3390\/ijerph17041154","type":"journal-article","created":{"date-parts":[[2020,2,14]],"date-time":"2020-02-14T10:09:57Z","timestamp":1581674997000},"page":"1154","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Association of Geomagnetic Disturbances and Suicide Attempts in Taiwan, 1997\u20132013: A Cross-Sectional Study"],"prefix":"10.3390","volume":"17","author":[{"given":"Tsutomu","family":"Nishimura","sequence":"first","affiliation":[{"name":"Translational Research Center for Medical Innovation, Kobe 650-0047, Japan"},{"name":"Institute for Advancement of Clinical and Translational Science (iACT), Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7688-3012","authenticated-orcid":false,"given":"I-Ju","family":"Tsai","sequence":"additional","affiliation":[{"name":"Management Office for Health Data, China Medical University Hospital, Taichung 404, Taiwan"},{"name":"College of Medicine, China Medical University, Taichung 404, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroyuki","family":"Yamauchi","sequence":"additional","affiliation":[{"name":"Earthquake Prediction Research Center, Tokyo 103-0014, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4876-446X","authenticated-orcid":false,"given":"Eiji","family":"Nakatani","sequence":"additional","affiliation":[{"name":"Translational Research Center for Medical Innovation, Kobe 650-0047, Japan"},{"name":"Division of Statistical Analysis, Research Support Center, Shizuoka General Hospital, Shizuoka 420-8527, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masanori","family":"Fukushima","sequence":"additional","affiliation":[{"name":"Translational Research Center for Medical Innovation, Kobe 650-0047, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chung Y.","family":"Hsu","sequence":"additional","affiliation":[{"name":"Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,2,12]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2014). Preventing Suicide: A Global Imperative, WHO."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1093\/aje\/kwu341","article-title":"Acute air pollution exposure and risk of suicide completion","volume":"181","author":"Bakian","year":"2015","journal-title":"Am. J. Epidemiol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"194","DOI":"10.1016\/j.jad.2016.05.006","article-title":"Ambient air pollution and suicide in Tokyo, 2001\u20132011","volume":"201","author":"Ng","year":"2016","journal-title":"J. Affect. Disord."},{"key":"ref_4","first-page":"395","article-title":"Relation between suicide and the electromagnetic field of overhead power lines","volume":"11","author":"Reichmanis","year":"1979","journal-title":"Physiol. Chem. Phys."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"94","DOI":"10.1136\/ewjm.173.2.94","article-title":"Exposure to electromagnetic fields and suicide among electric utility workers: A nested case-control study","volume":"173","author":"Savitz","year":"2000","journal-title":"West. J. Med."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"223","DOI":"10.1016\/0277-9536(94)E0070-9","article-title":"The spring peak in suicides\u2014A cross-national analysis","volume":"40","author":"Chew","year":"1995","journal-title":"Soc. Sci. Med."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1159\/000090596","article-title":"Seasonal variation in suicidal deaths in Chile: Its relationship to latitude","volume":"39","author":"Heerlein","year":"2006","journal-title":"Psychopathology"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/S0165-0327(03)00137-X","article-title":"Analysis of the seasonal pattern in suicide","volume":"81","author":"Partonen","year":"2004","journal-title":"J. Affect. Disord."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/S0033-3506(88)80005-2","article-title":"Power frequency magnetic field and illness in multi-storey blocks","volume":"102","author":"Perry","year":"1988","journal-title":"Public Health"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1007\/s12199-013-0355-5","article-title":"Association of geomagnetic disturbances and suicides in Japan, 1999\u20132010","volume":"19","author":"Tada","year":"2014","journal-title":"Environ. Health Prev. Med."},{"key":"ref_11","first-page":"24","article-title":"The effect of geomagnetic storms on suicide","volume":"6","author":"Gordon","year":"2003","journal-title":"S. Afr. Psychiatry Rev."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1002\/bem.20190","article-title":"Do ambient electromagnetic fields affect behaviour? A demonstration of the relationship between geomagnetic storm activity and suicide","volume":"27","author":"Berk","year":"2006","journal-title":"Bioelectromagnetics"},{"key":"ref_13","unstructured":"Brahic, C. (2008). Does the Earth\u2019s magnetic field cause suicides?. NewScientist, Available online: https:\/\/www.newscientist.com\/article\/dn13769-does-the-earths-magnetic-field-cause-suicides\/."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"259","DOI":"10.2466\/pms.1985.61.1.259","article-title":"Geophysical variables and behavior: XXIX. Impact of atmospheric conditions on occurrences of individual violence among Canadian penitentiary populations","volume":"61","author":"Ganjavi","year":"1985","journal-title":"Percept. Mot. Ski."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1192\/bjp.164.3.403","article-title":"Geomagnetic storms: Association with incidence of depression as measured by hospital admission","volume":"164","author":"Kay","year":"1994","journal-title":"Br. J. Psychiatry"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"404","DOI":"10.1111\/pcn.12149","article-title":"Stronger geomagnetic fields may be a risk factor of male suicides","volume":"68","author":"Nishimura","year":"2014","journal-title":"Psychiatry Clin. Neurosci."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/j.envint.2018.02.012","article-title":"Ambient concentrations of particulate matter and hospitalization for depression in 26 Chinese cities: A case-crossover study","volume":"114","author":"Wang","year":"2018","journal-title":"Environ. Int."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"155","DOI":"10.4137\/EHI.S40493","article-title":"Air Pollution and Emergency Department Visits for Depression: A Multicity Case-Crossover Study","volume":"10","author":"Szyszkowicz","year":"2016","journal-title":"Environ. Health Insights"},{"key":"ref_19","unstructured":"(2020, February 10). National Health Insurance Research Database in Taiwan (NHIRD). Available online: http:\/\/nhird.nhri.org.tw\/date_01_en.html."},{"key":"ref_20","unstructured":"(2020, February 10). Taiwan Environmental Protection Administration (EPA) Website, Available online: https:\/\/taqm.epa.gov.tw\/taqm\/en\/YearlyDataDownload.aspx."},{"key":"ref_21","unstructured":"(2020, February 10). Directorate General of Budget, Accounting, and Statistics of the Executive Yuan. Available online: https:\/\/knoema.com\/atlas\/sources\/DGBAS?topic=CPI."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Mandea, M., and Korte, M. (2010). Geomagnetic Observations and Models, Springer. [1st ed.].","DOI":"10.1007\/978-90-481-9858-0"},{"key":"ref_23","unstructured":"(2020, February 10). NASA\/GSFC\u2019s OMNI Data Set, Available online: https:\/\/omniweb.gsfc.nasa.gov\/form\/dx1.html."},{"key":"ref_24","unstructured":"(2020, February 10). Institute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch of the Russian Academy of Sciences. Available online: http:\/\/cr0.izmiran.ru\/mgdn\/main.htm."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Harrell, J.F.E. (2015). SpringerLink. Regression Modeling Strategies: With Applications to Linear Models, Logistic and Ordinal Regression, and Survival Analysis, Springer.","DOI":"10.1007\/978-3-319-19425-7"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1023\/A:1015637127504","article-title":"Schumann resonances, a plausible biophysical mechanism for the human health effects of Solar\/Geomagnetic activity","volume":"26","author":"Cherry","year":"2002","journal-title":"Nat. Hazards"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1139\/p01-049","article-title":"Seasonal and diurnal variations of geomagnetic activity and their role in Space Weather forecast","volume":"79","author":"Lyatsky","year":"2001","journal-title":"Can. J. Phys."}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/17\/4\/1154\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T08:57:15Z","timestamp":1760173035000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/17\/4\/1154"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2,12]]},"references-count":27,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2020,2]]}},"alternative-id":["ijerph17041154"],"URL":"https:\/\/doi.org\/10.3390\/ijerph17041154","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,2,12]]}}}