| Title: |
Association between solar insolation and a history of suicide attempts in bipolar I disorder |
| Authors: |
Bauer, Michael; Glenn, Tasha; Alda, Martin; Andreassen, Ole A.; Angelopoulos, Elias; Ardau, Raffaella; Ayhan, Yavuz; Baethge, Christopher; Bauer, Rita; Baune, Bernhard T.; Becerra-Palars, Claudia; Bellivier, Frank; Belmaker, Robert H.; Berk, Michael; Bersudsky, Yuly; Bicakci, Sule; Birabwa-Oketcho, Harriet; Bjella, Thomas D.; Cabrera, Jorge; Cheung, Eric Y. Wo; Del Zompo, Maria; Dodd, Seetal; Donix, Markus; Etain, Bruno; Fagiolini, Andrea; Fountoulakis, Kostas N.; Frye, Mark A.; Gonzalez-Pinto, Ana; Gottlieb, John F.; Grof, Paul; Harima, Hirohiko; Henry, Chantal; Isometsä, Erkki T.; Janno, Sven; Kapczinski, Flavio; Kardell, Mathias; Khaldi, Slim; Kliwicki, Sebastian; Konig, Barbara; Kot, Timur L.; Krogh, Rikke; Kunz, Mauricio; Lafer, Beny; Landen, Mikael; Larsen, Erik R.; Lewitzka, Ute; Licht, Rasmus W.; Lopez-Jaramillo, Carlos; MacQueen, Glenda; Manchia, Mirko; Marsh, Wendy; Martinez-Cengotitabengoa, Monica; Melle, Ingrid; Meza-Urzua, Fatima; Ming, Mok Yee; Monteith, Scott; Morken, Gunnar; Mosca, Enrica; Mozzhegorova, Anton A.; Munoz, Rodrigo; Mythri, Starlin V.; Nacef, Fethi; Nadella, Ravi K.; Nery, Fabiano G.; Nielsen, Rene E.; O'Donovan, Claire; Omrani, Adel; Osher, Yamima; Sorensen, Helle Ostermark; Ouali, Uta; Ruiz, Yolanda Pica; Pilhatsch, Maximilian; Pinna, Marco; da Ponte, Francisco D. R.; Quiroz, Danilo; Ramesar, Raj; Rasgon, Natalie; Reddy, M. S.; Reif, Andreas; Ritter, Philipp; Rybakowski, Janusz K.; Sagduyu, Kemal; Raghuraman, Bharathram Sathur; Scippa, Angela M.; Severus, Emanuel; Simhandl, Christian; Stackhouse, Paul W.; Stein, Dan J.; Strejilevich, Sergio; Subramaniam, Mythily; Sulaiman, Ahmad Hatim; Suominen, Kirsi; Tagata, Hiromi; Tatebayashi, Yoshitaka; Tondo, Leonardo; Torrent, Carla; Vaaler, Arne E.; Vares, Edgar; Veeh, Julia; Vieta, Eduard; Viswanath, Biju; Yoldi-Negrete, Maria; Zetina, Mark; Zgueb, Yosra; Whybrow, Peter C. |
| Contributors: |
Department of Psychiatry; Clinicum; HUS Psychiatry |
| Publisher Information: |
Elsevier Ltd. |
| Publication Year: |
2020 |
| Collection: |
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto |
| Subject Terms: |
Bipolar disorder; Suicide; Sunlight; Solar insolation; Seasonal variation; AGE-OF-ONSET; RETINAL GANGLION-CELLS; VITAMIN-D; CIRCADIAN-RHYTHMS; SEASONAL-VARIATION; MOOD DISORDERS; SUBSTANCE USE; SHIFT WORK; RISK; BEHAVIOR; Neurology and psychiatry |
| Description: |
In many international studies, rates of completed suicide and suicide attempts have a seasonal pattern that peaks in spring or summer. This exploratory study investigated the association between solar insolation and a history of suicide attempt in patients with bipolar I disorder. Solar insolation is the amount of electromagnetic energy from the Sun striking a surface area on Earth. Data were collected previously from 5536 patients with bipolar I disorder at 50 collection sites in 32 countries at a wide range of latitudes in both hemispheres. Suicide related data were available for 3365 patients from 310 onset locations in 51 countries. 1047 (31.1%) had a history of suicide attempt. There was a significant inverse association between a history of suicide attempt and the ratio of mean winter solar insolation/mean summer solar insolation. This ratio is smallest near the poles where the winter insolation is very small compared to the summer insolation. This ratio is largest near the equator where there is relatively little variation in the insolation over the year. Other variables in the model that were positively associated with suicide attempt were being female, a history of alcohol or substance abuse, and being in a younger birth cohort. Living in a country with a state-sponsored religion decreased the association. (All estimated coefficients p |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
Michael Berk is supported by an NHMRC Senior Principal Research Fellowship (APP1059660 and APP1156072). Ole A Andreassen, Thomas D Bjella and Ingrid Melle are supported by Research Council of Norway (223273) and KG Jebsen Stiftelsen. Ravi Nadella has received funding from the Accelerator program for Discovery in Brain disorders using Stem cells (ADBS), jointly funded by the Department of Biotechnology, Government of India, and the Pratiksha trust. Biju Viswanath has received funding by Department of Science and Technology INSPIRE scheme, Government of India. Mikael Landen was supported by grants from the Swedish Research Council (K2014-62X-14647-12-51 and K2010-61P-21568-01-4), the Swedish Foundation for Strategic Research (KF10-0039), and the Swedish Federal Government under the LUA/ALF agreement (ALF 20130032, ALFGBG-142041).; https://hdl.handle.net/10138/317089; 000467670000001 |
| Availability: |
https://hdl.handle.net/10138/317089 |
| Rights: |
info:eu-repo/semantics/openAccess ; openAccess |
| Accession Number: |
edsbas.FDCEFCA6 |
| Database: |
BASE |