Predicting National Suicide Numbers with Social Media Data

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2013 May 1

PMID 23630615

Citations 34

Authors

Hong-Hee Won

Woojae Myung

Gil-Young Song

Won-Hee Lee

Jong-Won Kim

Bernard J Carroll

Doh Kwan Kim

Affiliations

Soon will be listed here.

Abstract

Suicide is not only an individual phenomenon, but it is also influenced by social and environmental factors. With the high suicide rate and the abundance of social media data in South Korea, we have studied the potential of this new medium for predicting completed suicide at the population level. We tested two social media variables (suicide-related and dysphoria-related weblog entries) along with classical social, economic and meteorological variables as predictors of suicide over 3 years (2008 through 2010). Both social media variables were powerfully associated with suicide frequency. The suicide variable displayed high variability and was reactive to celebrity suicide events, while the dysphoria variable showed longer secular trends, with lower variability. We interpret these as reflections of social affect and social mood, respectively. In the final multivariate model, the two social media variables, especially the dysphoria variable, displaced two classical economic predictors - consumer price index and unemployment rate. The prediction model developed with the 2-year training data set (2008 through 2009) was validated in the data for 2010 and was robust in a sensitivity analysis controlling for celebrity suicide effects. These results indicate that social media data may be of value in national suicide forecasting and prevention.

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References

Lester D, Yang B . The relationship between divorce, unemployment and female participation in the labour force and suicide rates in Australia and America. Aust N Z J Psychiatry. 1991; 25(4):519-23. DOI: 10.3109/00048679109064445. View

Mercy J, Kresnow M, OCarroll P, Lee R, Powell K, Potter L . Is suicide contagious? A study of the relation between exposure to the suicidal behavior of others and nearly lethal suicide attempts. Am J Epidemiol. 2001; 154(2):120-7. DOI: 10.1093/aje/154.2.120. View

Bertolote J, Fleischmann A . Suicidal behavior prevention: WHO perspectives on research. Am J Med Genet C Semin Med Genet. 2005; 133C(1):8-12. DOI: 10.1002/ajmg.c.30041. View

Sudak H, Sudak D . The media and suicide. Acad Psychiatry. 2006; 29(5):495-9. DOI: 10.1176/appi.ap.29.5.495. View

Sisask M, Varnik A . Media roles in suicide prevention: a systematic review. Int J Environ Res Public Health. 2012; 9(1):123-38. PMC: 3315075. DOI: 10.3390/ijerph9010123. View

Landberg J . Per capita alcohol consumption and suicide rates in the U.S., 1950-2002. Suicide Life Threat Behav. 2009; 39(4):452-9. PMC: 2810378. DOI: 10.1521/suli.2009.39.4.452. View

Souetre E, Wehr T, Douillet P, Darcourt G . Influence of environmental factors on suicidal behavior. Psychiatry Res. 1990; 32(3):253-63. DOI: 10.1016/0165-1781(90)90030-9. View

Kim M, Jung-Choi K, Jun H, Kawachi I . Socioeconomic inequalities in suicidal ideation, parasuicides, and completed suicides in South Korea. Soc Sci Med. 2010; 70(8):1254-61. DOI: 10.1016/j.socscimed.2010.01.004. View

Ceccherini-Nelli A, Priebe S . Economic factors and suicide rates: associations over time in four countries. Soc Psychiatry Psychiatr Epidemiol. 2010; 46(10):975-82. DOI: 10.1007/s00127-010-0275-2. View

10.

Inoue K, Fukunaga T, Okazaki Y . Study of an economic issue as a possible indicator of suicide risk: a discussion of stock prices and suicide. J Forensic Sci. 2012; 57(3):783-5. DOI: 10.1111/j.1556-4029.2011.02051.x. View

11.

Yang B, Lester D, Yang C . Sociological and economic theories of suicide: a comparison of the U.S.A. and Taiwan. Soc Sci Med. 1992; 34(3):333-4. DOI: 10.1016/0277-9536(92)90275-u. View

12.

Yang A, Tsai S, Huang N . Decomposing the association of completed suicide with air pollution, weather, and unemployment data at different time scales. J Affect Disord. 2010; 129(1-3):275-81. DOI: 10.1016/j.jad.2010.08.010. View

13.

Signorini A, Segre A, Polgreen P . The use of Twitter to track levels of disease activity and public concern in the U.S. during the influenza A H1N1 pandemic. PLoS One. 2011; 6(5):e19467. PMC: 3087759. DOI: 10.1371/journal.pone.0019467. View

14.

Leenaars A, Yang B, Lester D . The effect of domestic and economic stress on suicide rates in Canada and the United States. J Clin Psychol. 1993; 49(6):918-21. DOI: 10.1002/1097-4679(199311)49:6<918::aid-jclp2270490620>3.0.co;2-c. View

15.

Chen V, Stewart R, Lee C . Weekly lottery sales volume and suicide numbers: a time series analysis on national data from Taiwan. Soc Psychiatry Psychiatr Epidemiol. 2011; 47(7):1055-9. DOI: 10.1007/s00127-011-0410-8. View

16.

Cheng A, Hawton K, Chen T, Yen A, Chen C, Chen L . The influence of media coverage of a celebrity suicide on subsequent suicide attempts. J Clin Psychiatry. 2007; 68(6):862-6. DOI: 10.4088/jcp.v68n0606. View

17.

Ramadas S, Kuttichira P . The development of a guideline and its impact on the media reporting of suicide. Indian J Psychiatry. 2011; 53(3):224-8. PMC: 3221178. DOI: 10.4103/0019-5545.86812. View

18.

Phillips D . The influence of suggestion on suicide: substantive and theoretical implications of the Werther effect. Am Sociol Rev. 1974; 39(3):340-54. View

19.

Gould M, Petrie K, Kleinman M, Wallenstein S . Clustering of attempted suicide: New Zealand national data. Int J Epidemiol. 1994; 23(6):1185-9. DOI: 10.1093/ije/23.6.1185. View

20.

Kim Y, Kim H, Kim D . Association between daily environmental temperature and suicide mortality in Korea (2001-2005). Psychiatry Res. 2010; 186(2-3):390-6. DOI: 10.1016/j.psychres.2010.08.006. View