J Korean Acad Psychiatr Ment Health Nurs.  2014 Dec;23(4):268-277. 10.12934/jkpmhn.2014.23.4.268.

A Study on Comparison of Classification and Regression Tree and Multiple Regression for Predicting of Soldiers' Depression

• Woo CH
• Park JY

• KMID: 2322756
• DOI: http://doi.org/10.12934/jkpmhn.2014.23.4.268

Abstract

PURPOSE
The purpose of this study was to explore status and level of depression, anxiety and self esteem in Korean soldiers and identify effective statistical methods that account for and predict their depression.
METHODS
A cross sectional study design was employed. Data were collected from five hundred thirty four soldiers in Gang-won Province and analyzed using stepwise multiple regression and Classification and Regression Tree (CART) with SPSS/WIN 18.0 program.
RESULTS
The mean scores for depression, anxiety and self-esteem were 10.7+/-9.75, 38.5+/-10.16 and 31.7+/-5.20 respectively. Around one-forth (23.6%) of participants were above mild depression level. Major variables showing significant correlations were anxiety, self-esteem, duration of military service and the number of ventilation activities. Anxiety, self-esteem and duration of military service accounted for 62.3% of the variance in depression according to multiple regression. In CART analysis, predicting factors in the high risk group were high level anxiety and uncertain plan after discharge from military.
CONCLUSION
The result of this study showed that anxiety was major factor of soldiers' depression both in multiple regression and CART. Also, CART applied in this study was an effective method in screening a risk group of soldiers' depression.

Keyword

Military personnel; Depression; Mental health; Regression analysis; Data mining

MeSH Terms

Anxiety
Classification*
Data Mining
Depression*
Gangwon-do
Humans
Mass Screening
Mental Health
Military Personnel
Regression Analysis
Self Concept
Ventilation

Figure

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  Figure 1 Predicting risk group in depression by classification and regression tree.

Reference

1. Koo SS. A study on mental health of new generation soldiers. Ment Health Soc Work. 2006; 24:64–93.

2. Statics Korea. Status of military death accidents [Internet]. cited 2013 May 1. Available from: http://www.index.go.kr/potal/main/EachDtlPageDetail.do?idx_cd=1701.

3. Kim SA, Kim HR, Woo CH, Park SI, Keum R. Communication abilities, interpersonal relationship, anxiety, and depression in Korean soldiers. J Korean Acad Psychiatr Ment Health Nurs. 2011; 20(1):81–90.

4. Lee YC. Military, place 'military life counselor' in GOP [Internet]. Seoul: Korean National Security. Net;2005. 11. 2. Updated 2014 July 14. cited 2014 Nov 1. Available from: http://www.konas.net/article/article.asp?idx=37079.

5. Park AS. A study on the preparations for enlistment of multicultural youths. Q J Def Policy Stud. 2011; 90:177–207.

6. Woo CH. Development and evaluation of the military mental health promotion program [dissertation]. [Seoul]: Yonsei University;2012. 108.

7. Hyun MS, Chung HI, Kang HS. Influencing factors on military adaptation among Korean soldiers. J Korean Acad Psychiatr Ment Health Nurs. 2009; 18(3):305–312.

8. Larson GE, Booth-Kewley S, Ryan MA. Predictors of navy attrition: a demonstration of potential usefulness for screening. Mil Med. 2002; 167:770–776.

9. Warner CH, Warner CM, Breitbach J, Rachal J, Matuszak T, Grieger TA. Depression in entry level military personnel. Mil Med. 2007; 172(8):792–799.

10. Xiong H, Zhang X, Zhang Y, Ma F, Li Y, Li L. An investigation of the prevalence of depressive symptoms in soldiers during military training. Prev Med. 2005; 41:642–645. http://dx.doi.org/10.1016/j.ypmed.2005.01.010.

11. Kim SS. A study on the level of soldiers' anxiety and anxiety- related factors [master's thesis]. [Seoul]: Yonsei University;2003. 67.

12. Song SJ. The group therapy for soldiers' adaptation of military life. Proceedings of the third national counselor workshop for military counseling institutionalization and divorce counseling legislation. Workbook. 2006; 7–99.

13. Jeong MK, Ko KS. The effect of soldiers' self-esteem and depression on suicidal ideation. Korean J Soc Welf Stud. 2009; 40(4):453–483.

14. Jung HS, Song EJ. The effects of a group counseling program for the military in mental health, self-esteem, and quality of life. J Korean Acad Psychiatr Ment Health Nurs. 2008; 17(4):353–362.

15. Sohn JN. Discriminating power of suicidal ideation by life stress, coping strategy, and depression in college students. J Korean Acad Psychiatr Ment Health Nurs. 2007; 16(3):267–275.

16. Kumar G, Steer R. Psychosocial correlation of suicidal ideation in adolescent psychiatric inpatients. Suicide Life Threat Behav. 1995; 25(3):110–119.

17. Spann M, Molock S, Barksdale C, Martin S, Puri R. Suicide and African American teenagers: risk factors and coping mechanism. Suicide Life Threat Behav. 2006; 36(5):553–568.

18. Rodríguez JR, Quiones-Maldonado R, Alvarado-Pomales A. Military suicide: factors that need to be taken into consideration to understand the phenomena. Boletin de la Asociacion Medica de Puerto Rico. 2009; 101(3):33–41.

19. Smith TC, Zamorski M, Smith B, Riddle JR, Lesrdmann CA, Well TS, et al. The physical and mental health of a large military cohort baseline functional health status of the millennium cohort study team. BMC Public Health. 2007; 340(7):1–13. http://dx.doi.org/10.1186/1471-2458-7-340.

20. Park M, Choi SR, Shin AM, Koo CH. Analysis of the characteristics of the older adults with depression using data mining decision tree analysis. J Korean Acad Nurs. 2013; 43(1):1–10. http://dx.doi.org/10.4040/jkan.2013.43.1.1.

21. Radloff LS. The CES-D scale: A self-report depression scale for research in the general population. Appl Psychol Meas. 1977; 1:385–401. http://dx.doi.org/10.1177/014662167700100306.

22. Cho MJ, Kim KH. Diagnostic validity of the CES-D (Korean version) in the assessment of DSM-III-R major depression. J Korean Neuropsychiatr Assoc. 1993; 32(3):381–398.

23. Spielberger CD, Gorsuch RL, Lushene R. Manual for the statetrait anxiety inventory. Palo Alto, CA: Consulting Psychologists Press;1970. p. 36.

24. Rosenberg M. Society and the adolescent self-image. Princeton, NJ: Princeton University Press;1965. p. 326.

25. Jon BJ. A study on the possibility of self-concept measures. Yonsei Publications. 1974; 11:107–130.

26. Joe SY. Relations of health promoting behaviors, mental health, and military life adjustments of soldiers. J Korean Acad Psychiatr Ment Health Nurs. 2003; 12(2):164–171.

27. Koo JS. Depression, anxiety and suicidal ideation according to basic military training duration in Air force conscripts [master's thesis]. [Kyeongsan]: Daegu Catholic University;2009. 19.

28. Cho JS. The influence analysis of admission variables on academic achievements. J Korean Data Inf Sci Soc. 2010; 21(4):729–736.

29. Lim YB, Oh MS. Note on classification and regression tree analysis. J Korean Soc Quality Manage. 2002; 30(1):152–161.