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- Bauer, M. (author)
Variations in seasonal solar insolation are associated with a history of suicide attempts in bipolar I disorder
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-09-01
- Springer Science and Business Media LLC,2021
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- LIBRIS-ID:oai:gup.ub.gu.se/309507
- https://gup.ub.gu.se/publication/309507URI
- https://doi.org/10.1186/s40345-021-00231-7DOI
- http://kipublications.ki.se/Default.aspx?queryparsed=id:147533631URI
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- Language:English
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- SwePubSwePub
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- Background Bipolar disorder is associated with circadian disruption and a high risk of suicidal behavior. In a previous exploratory study of patients with bipolar I disorder, we found that a history of suicide attempts was associated with differences between winter and summer levels of solar insolation. The purpose of this study was to confirm this finding using international data from 42% more collection sites and 25% more countries. Methods Data analyzed were from 71 prior and new collection sites in 40 countries at a wide range of latitudes. The analysis included 4876 patients with bipolar I disorder, 45% more data than previously analyzed. Of the patients, 1496 (30.7%) had a history of suicide attempt. Solar insolation data, the amount of the sun's electromagnetic energy striking the surface of the earth, was obtained for each onset location (479 locations in 64 countries). Results This analysis confirmed the results of the exploratory study with the same best model and slightly better statistical significance. There was a significant inverse association between a history of suicide attempts and the ratio of mean winter insolation to mean summer insolation (mean winter insolation/mean summer insolation). This ratio is largest near the equator which has little change in solar insolation over the year, and smallest near the poles where the winter insolation is very small compared to the summer insolation. Other variables in the model associated with an increased risk of suicide attempts were a history of alcohol or substance abuse, female gender, and younger birth cohort. The winter/summer insolation ratio was also replaced with the ratio of minimum mean monthly insolation to the maximum mean monthly insolation to accommodate insolation patterns in the tropics, and nearly identical results were found. All estimated coefficients were significant at p < 0.01. Conclusion A large change in solar insolation, both between winter and summer and between the minimum and maximum monthly values, may increase the risk of suicide attempts in bipolar I disorder. With frequent circadian rhythm dysfunction and suicidal behavior in bipolar disorder, greater understanding of the optimal roles of daylight and electric lighting in circadian entrainment is needed.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Psykiatri hsv//swe
- MEDICAL AND HEALTH SCIENCES Clinical Medicine Psychiatry hsv//eng
- Bipolar disorder
- Suicide
- Sunlight
- Solar insolation
- Psychiatry
- Circadian
- Seasonal variation
- substance use disorders
- age-of-onset
- circadian-rhythms
- birth-cohort
- global analysis
- population
- mortality
- rates
- light
- mood
- Psychiatry
Added entries (persons, corporate bodies, meetings, titles ...)
- Glenn, T. (author)
- Achtyes, E. D. (author)
- Alda, M. (author)
- Agaoglu, E. (author)
- Altinbas, K. (author)
- Andreassen, O. A. (author)
- Angelopoulos, E. (author)
- Ardau, R. (author)
- Vares, E. A. (author)
- Aydin, M. (author)
- Ayhan, Y. (author)
- Baethge, C. (author)
- Bauer, R. (author)
- Baune, B. T. (author)
- Balaban, C. (author)
- Becerra-Palars, C. (author)
- Behere, A. P. (author)
- Behere, P. B. (author)
- Belete, H. (author)
- Belete, T. (author)
- Belizario, G. O. (author)
- Bellivier, F. (author)
- Belmaker, R. H. (author)
- Benedetti, F. (author)
- Berk, M. (author)
- Bersudsky, Y. (author)
- Bicakci, S. (author)
- Birabwa-Oketcho, H. (author)
- Bjella, T. D. (author)
- Brady, C. (author)
- Cabrera, J. (author)
- Cappucciati, M. (author)
- Castro, A. M. P. (author)
- Chen, W. L. (author)
- Cheung, E. Y. W. (author)
- Chiesa, S. (author)
- Crowe, M. (author)
- Cuomo, A. (author)
- Dallaspezia, S. (author)
- Del Zompo, M. (author)
- Desai, P. (author)
- Dodd, S. (author)
- Donix, M. (author)
- Etain, B. (author)
- Fagiolini, A. (author)
- Fellendorf, F. T. (author)
- Ferensztajn-Rochowiak, E. (author)
- Fiedorowicz, J. G. (author)
- Fountoulakis, K. N. (author)
- Frye, M. A. (author)
- Geoffroy, P. A. (author)
- Gonzalez-Pinto, A. (author)
- Gottlieb, J. F. (author)
- Grof, P. (author)
- Haarman, B. C. M. (author)
- Harima, H. (author)
- Hasse-Sousa, M. (author)
- Henry, C. (author)
- Hoffding, L. (author)
- Houenou, J. (author)
- Imbesi, M. (author)
- Isometsa, E. T. (author)
- Ivkovic, M. (author)
- Janno, S. (author)
- Johnsen, S. (author)
- Kapczinski, F. (author)
- Karakatsoulis, G. N. (author)
- Kardell, MathiasGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry(Swepub:gu)xkardm (author)
- Kessing, L. V. (author)
- Kim, S. J. (author)
- Konig, B. (author)
- Kot, T. L. (author)
- Koval, M. (author)
- Kunz, M. (author)
- Lafer, B. (author)
- Landén, Mikael,1966Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry(Swepub:gu)xlandt (author)
- Larsen, E. R. (author)
- Lenger, M. (author)
- Lewitzka, U. (author)
- Licht, R. W. (author)
- Lopez-Jaramillo, C. (author)
- MacKenzie, A. (author)
- Madsen, H. O. (author)
- Madsen, Saka (author)
- Mahadevan, J. (author)
- Mahardika, A. (author)
- Manchia, M. (author)
- Marsh, W. (author)
- Martinez-Cengotitabengoa, M. (author)
- Martiny, K. (author)
- Mashima, Y. (author)
- McLoughlin, D. M. (author)
- Meesters, Y. (author)
- Melle, I. (author)
- Meza-Urzua, F. (author)
- Ming, M. Y. (author)
- Monteith, S. (author)
- Moorthy, M. (author)
- Morken, G. (author)
- Mosca, E. (author)
- Mozzhegorov, A. A. (author)
- Munoz, R. (author)
- Mythri, S. V. (author)
- Nacef, F. (author)
- Nadella, R. K. (author)
- Nakanotani, T. (author)
- Nielsen, R. E. (author)
- O'Donovan, C. (author)
- Omrani, A. (author)
- Osher, Y. (author)
- Ouali, U. (author)
- Pantovic-Stefanovic, M. (author)
- Pariwatcharakul, P. (author)
- Petite, J. (author)
- Pfennig, A. (author)
- Ruiz, Y. P. (author)
- Pilhatsch, M. (author)
- Pinna, M. (author)
- Pompili, M. (author)
- Porter, R. (author)
- Quiroz, D. (author)
- Rabelo-da-Ponte, F. D. (author)
- Ramesar, R. (author)
- Rasgon, N. (author)
- Ratta-Apha, W. (author)
- Ratzenhofer, M. (author)
- Redahan, M. (author)
- Reddy, M. S. (author)
- Reif, A. (author)
- Reininghaus, E. Z. (author)
- Richards, J. G. (author)
- Ritter, P. (author)
- Rybakowski, J. K. (author)
- Sathyaputri, L. (author)
- Scippa, A. M. (author)
- Simhandl, C. (author)
- Severus, E. (author)
- Smith, D. (author)
- Smith, J. (author)
- Stackhouse, P. W. (author)
- Stein, D. J. (author)
- Stilwell, K. (author)
- Strejilevich, S. (author)
- Su, K. P. (author)
- Subramaniam, M. (author)
- Sulaiman, A. H. (author)
- Suominen, K. (author)
- Tanra, A. J. (author)
- Tatebayashi, Y. (author)
- Teh, W. L. (author)
- Tondo, L. (author)
- Torrent, C. (author)
- Tuinstra, D. (author)
- Uchida, T. (author)
- Vaaler, A. E. (author)
- Veeh, J. (author)
- Vieta, E. (author)
- Viswanath, B. (author)
- Yoldi-Negrete, M. (author)
- Yalcinkaya, O. K. (author)
- Young, A. H. (author)
- Zgueb, Y. (author)
- Whybrow, P. C. (author)
- Göteborgs universitetInstitutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi (creator_code:org_t)
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- In:International Journal of Bipolar Disorders: Springer Science and Business Media LLC9:12194-7511
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