Open Access

Stigma toward schizophrenia among parents of junior and senior high school students in Japan

  • Hatsumi Yoshii1Email author,
  • Yuichiro Watanabe2, 3,
  • Hideaki Kitamura2,
  • Zhang Nan1 and
  • Kouhei Akazawa1
Contributed equally
BMC Research Notes20114:558

DOI: 10.1186/1756-0500-4-558

Received: 13 July 2011

Accepted: 22 December 2011

Published: 22 December 2011

Abstract

Background

Stigma toward schizophrenia is a substantial barrier to accessing care and adhering to treatment. Provisions to combat stigma are important, but in Japan and other developed countries there are few such provisions in place that target parents of adolescents. The attitudes of parents are important to address as first schizophrenic episodes typically occur in adolescence. In overall efforts to develop an education program and provisions against stigma, here we examined the relationship between stigma toward schizophrenia and demographic characteristics of parents of junior and senior high school students in Japan. The specific hypothesis tested was that contact and communication with a person with schizophrenia would be important to reducing stigma. A questionnaire inquiring about respondent characteristics and which included a survey on stigma toward schizophrenia was completed by 2690 parents.

Results

The demographic characteristics significantly associated with the Devaluation- Discrimination Measure were family income, occupation, presence of a neighbor with schizophrenia, and participation in welfare activities for people with mental illness (p < 0.05). The mean ± SD score was 32.74 ± 5.66 out of a maximum of 48 points on the Link Devaluation-Discrimination Measure.

Conclusions

Stigma toward schizophrenia among parents of junior and senior high school students was in fact significantly stronger among members of the general public who had had contact with individuals with schizophrenia. In addition, stigma was associated with family income.

Background

The stigma attached to the psychosis of schizophrenia is the greatest obstacle to improving the lives of affected individuals and their families. Stigma can lead to a loss of opportunities, decreased self-esteem, discouraging experiences in the workplace or criminal justice system, and disparities in access to health care [1]. It can also drive individuals away from society and incline them towards nonadherence to medication [2]. Moreover, among various factors such as ignorance, denial, lack of motivation, absence of information on early psychosis, and lack of access to appropriate interventions, stigma is associated with psychosis remaining untreated [3].

People see the risks of intervention for schizophrenia as concerning two main issues: drug side-effects and stigma or anxiety surrounding the use of the word 'psychosis' [4]. Many people shun individuals with symptoms of schizophrenia and do not accept them in their communities [5, 6]. Therefore, someone with schizophrenia, or who has a family member with the illness, might be less willing to acknowledge the symptoms of the disorder and seek medical care. In this way, stigma becomes a substantial barrier to accessing care and adhering to treatment [1, 2].

The purpose of our ongoing research in schizophrenia is ultimately to develop an educational program for early detection and intervention of the disease, and the program naturally must include provisions to counteract stigma. Several sophisticated educational programs to counteract stigma have already been developed to provide basic information on schizophrenia and its associated behaviors to various populations under appropriate conditions [79], but there have been no studies of the effectiveness of such programs among the parents of adolescents in Japan. The attitudes of parents are important to address as first schizophrenic episodes typically occur in adolescence. Our recent study suggested that such parents can learn basic information about schizophrenia and better discriminate schizophrenia symptoms by completing a quick (13-minute) web-based educational program [10]. Therefore, in this study, targeting the issue of stigma specifically, we evaluated stigma toward schizophrenia among a large sample of parents of adolescents and examined the association between stigma toward schizophrenia and several demographic characteristics of the respondents. We tested the hypothesis that contact and communication with a person with schizophrenia would be important to reducing stigma [11]. Through investigation of this hypothesis, we aimed to determine which factors, including that of contact and communication with a person with schizophrenia, influence stigma toward schizophrenia among parents of junior and senior high school students in Japan.

Methods

Setting and participants

The participants were 2,690 Japanese parents of junior and senior high school students (1,410 and 1,280, respectively) who were extracted from 1,370,000 candidates included in a database administered by a Japanese private company specializing in questionnaire research. Consent from the participants was obtained by the research company and the survey was conducted using an Internet website developed by the company. Stratified random sampling was adopted to prevent bias in the gathered sample, and sex and region were used as the stratifying variables, as previously described [10]. The study sample of 2,690 parents mostly comprised those aged 40-50 years (1,904; 70.8%). The study was approved by the Ethics Committee of the Niigata University School of Medicine.

Questionnaire

The participants completed a questionnaire that requested information on sociodemographic data, including age, occupation, and education. In addition, to survey stigma, the study questionnaire contained the Link's Devaluation-Discrimination Measure [12] (modified for schizophrenia), which uses a 4-point Likert scale (4, strongly agree; 3, tend to agree; 2, tend to disagree; and 1, strongly disagree). Items 1, 2, 3, 4, 8, and 10 were reverse scored. A higher score on the Devaluation-Discrimination Measure indicates greater stigma.

Statistical analysis

All analyses were performed using the Statistical Package for Social Science (SPSS) version 16.0. A p value less than 0.05 was considered to indicate statistical significance, and all statistical tests were two-tailed. One-way analysis of variance and Student's t-test were used to examine associations between stigma toward schizophrenia and the demographic characteristics of the respondents. Multiple comparisons were performed with post hoc Bonferroni tests for continuous variables [13]. Cross-tabulation was used to examine associations between occupation and both family income and education.

Results

Participant characteristics

Regarding the highest level of educational attainment, 1,063 (39.5%) participants had completed college, 766 (28.5%) had completed high school, and 385 (14.3%) had completed junior high school. Eighty-eight (3.3%) participants reported contact with a close friend or family member who has schizophrenia and 222 (8.3%) reported participation in welfare activities for people with mental illness. The association between occupation and family income is shown in Table 1, and that between occupation and education is shown in Table 2. These findings are discussed in our previous article [10].
Table 1

Association between occupation and family income

  

Occupation(%)

    
 

Agriculture, forestry, and fisheries

Production labor services

Transportation and communications

Sales and marketing

Service industry

Professional

Other

Family income (US dollars), (%)

      

P < 0.001

< 11,000

9.1

1.0

0.0

0.6

1.8

1.9

1.9

11,000-32,000

18.2

5.7

5.7

8.0

12.6

3.9

13.8

32,000-53,000

0.0

19.2

17.7

19.8

25.0

12.0

20.6

53,000-110,000

63.6

56.3

58.2

51.8

50.3

54.4

53.1

> 110,000

9.1

17.8

18.4

19.8

10.3

27.8

10.6

Total

100

100

100

100

100

100

100

Cross tabulation

Table 2

Association between occupation and education

Occupation(%)

 

Agriculture, forestry, and fisheries

Production labor services

Transportation and communications

Sales and marketing

Service industry

Professional

Other

Education(%)

      

P < 0.001

Junior high school

0.0

1.0

2.9

0.6

0.9

0.2

0.0

High school

54.5

29.2

30.5

23.5

34.1

17.0

32.5

Vocational school/Junior college

36.4

45.7

39.0

53.3

30.0

49.8

30.0

University

0.0

7.1

3.5

1.4

2.1

5.8

4.4

Graduate school

9.1

17.0

24.1

21.2

32.9

27.2

33.1

Total

100

100

100

100

100

100

100

Link Devaluation-Discrimination Measure

The mean ± SD Devaluation-Discrimination Measure score was 32.74 ± 5.66, from a possible total score ranging from 12 to 48.

The demographic characteristics significantly associated with the Devaluation-Discrimination Measure were occupation, presence of a neighbor with schizophrenia, family income, and participation in welfare activities for people with mental illness (Student's or Welch's t-test and one-way analysis of variance) (Table 3). Specifically, regarding occupation, participants working in the agriculture, forestry, and fisheries sector had the highest score (mean ± SD: 34.64 ± 3.72), and participants earning less than the equivalent of US$11,000 had the highest score (mean ± SD: 33.71 ± 4.92). The results of Bonferroni's correction revealed a significant difference between those participants categorized under professional and those categorized under production labor services and other (both P < 0.05). The mean score of respondents who reported having a neighbor with schizophrenia was higher than that of individuals who did not. In addition, the mean score of respondents who had taken part in welfare activities for people with mental illness was higher than that of individuals who had not (Table 3).
Table 3

Distribution of scores on the Devaluation-Discrimination Measure by demographic characteristics of the parents of adolescents

 

Devaluation-Discrimination Measure

 

Mean ± SD

p*

Age(years)

 

P = 0.635

30-39

32.47 ± 4.29

 

40-49

32.80 ± 4.43

 

50-59

32.62 ± 4.55

 

60-69

32.47 ± 4.42

 

Occupation

 

p = 0.001

Agriculture, forestry, and fisheries

34.64 ± 3.72

Production labor services

32.22 ± 4.27a

Transportation and communications

32.48 ± 4.43

Sales and marketing

32.92 ± 4.42

Service industry

32.74 ± 4.13

Professional

33.63 ± 4.86b

Other

31.78 ± 3.93

Family income, (US dollars)

p = 0.042

< 11,000

33.71 ± 4.92

 

11,000-32,000

32.68 ± 4.71

 

32,000-53,000

32.44 ± 4.26

 

53,000-110,000

32.66 ± 4.36

 

> 110,000

33.20 ± 4.70

 

Proximity to person with schizophrenia

p = 0.004

Yes

34.39 ± 5.40

 

No

32.68 ± 4.40

 

Participation in welfare activities for people with mental illness

p = 0.010

Yes

33.47 ± 4.79

No

32.67 ± 4.41

* Student's or Welch's t-test, one-way analysis of variance.

a P < 0.05, production labor services versus professional

b P < 0.05, professional versus other

Discussion

Among parents of junior and senior high school students in Japan, the mean score for the Devaluation-Discrimination Measure was 32.74 ± 5.66, which is similar to the score reported by Berge et al. (32.86 ± 6.22) [5].

The results of previous studies of stigma and demographic factors have not been consistent. Mann et al. showed that stigma was not significantly associated with age, race, or religion [14], and likewise the present study found that stigma was not significantly associated with age. However, Papadopoulos et al. found that older participants were more likely to believe that people with mental health problems were more aggressive and less intelligent than individuals without such problems, and that the participants' attitude overall was more likely to be characterized by social restrictiveness [15]. Thus, it would appear that stigma differs with respect to factors such as country of residence and study scale.

Our findings showed higher stigma among individuals employed in the agriculture, forestry, and fisheries sector and those with lower family income, and these two groups have substantial overlap in Japan [16]. The reasons for lower family income are numerous, but also include the fact that those employed in the agriculture, forestry, and fisheries sector have the lowest education level of any industry [17]. In a foreign study, stigma was shown also to be related to social class and education [15, 18]. These results might explain the higher stigma among those employed in this sector. The reasons for 3-point difference in Link Devaluation-Discrimination Measure scores seen between the agriculture, forestry, and fisheries sector (34.64 ± 3.72) and 'other' sector which scored the lowest (31.78 ± 3.93) in this study, are not entirely clear. However, the latter score concurs with that of the Japanese general public (31.95 ± 5.74) reported by Shimotsu et al. [19]. Greater stigma is likely attributable to differences in knowledge base, attitude, and behavior that arise from lower family income and lower educational attainment.

Stigma toward schizophrenia may also be closely related to contact with people who have the disorder. In this study, we found that individuals who participated in welfare activities for people with mental illness and those with a neighbour with schizophrenia had greater stigma toward schizophrenia (Table 1). This result did not agree with our hypothesis that having contact and communication with a person with schizophrenia would be important to reducing stigma. Our results could be explained by the following findings, however. Penn et al. [20] maintained that "interpersonal factors, such as overall social skill, negative symptoms, and perceived strangeness, may contribute to stigma". Behavior that is menacing, or simply exaggerated or incomprehensible, may produce aversion and fear. The findings of these studies are likely due to the nature of participant contact with schizophrenics. A study in a medical school in Turkey compared attitude changes in students participating in a 3-week psychiatric training program with those participating in an ophthalmology shift and reported no significant difference. The authors suggested that contact during job training might not affect attitudes because of the characteristics of the interaction [21]. Thus, the nature of contact with people with schizophrenia is likely to determine the extent of any stigma toward them. In addition, the disease view engenders a less favorable estimation of the mentally disordered [22]. Therefore, labeling behaviors 'schizophrenic' has a more pessimistic outlook [23]. In light of this, do any provisions created to counteract stigma require a sufficient base knowledge of schizophrenia? A Hong Kong study found that as 'knowledge' based on the mental illness perspective increased, attitudes became more negative [24]. Therefore, unless a sufficient base knowledge is provided to participants in welfare activities for people with mental illness in the form of an educational program, they may become more negative in their attitude as higher knowledge.

Conclusions

In summary, stigma toward schizophrenia was stronger among members of the general public who had had contact with people with the disorder, as well as those with lower family income. These results contribute to our ultimate research aim of developing an educational program that can combat stigma toward the disease in Japan.

Notes

Declarations

Acknowledgements

The authors thank the study participants. This work was supported by a 2010 Grant- in-Aid for Scientific Research (C) from the Japan Society for the Promotion of Science (22592581), entitled "Investigations of the Consciousness of Parents of Junior and Senior High School Students Concerning Schizophrenia and the Development of Educational Enlightenment Media".

Authors’ Affiliations

(1)
Department of Medical Informatics and Statistics, Niigata University Graduate School of Medicine
(2)
Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences
(3)
Health Administration Center, Headquarters for Health Administration, Niigata University

References

  1. Esterberg ML, Compton MT, McGee R, Shim R, Hochman K: Knowledge about schizophrenia and social distance toward individuals with schizophrenia: A survey among predominantly low-income, urban, African American community members. J Psychiatr Pract. 2008, 14: 86-93. 10.1097/01.pra.0000314315.94791.80.PubMedView ArticleGoogle Scholar
  2. Lysaker PH, Davis LW, Warman DM, Strasburger Amy, Beattie N: Stigma, social function and symptoms in schizophrenia and schizoaffective disorder: Associations across 6 months. Psychiatry Res. 2007, 149: 89-95. 10.1016/j.psychres.2006.03.007.PubMedView ArticleGoogle Scholar
  3. Chong SA, Lee C, Bird L, Verma S: A risk reduction approach for schizophrenia: The early psychosis intervention programme. Ann Acad Med Singapore. 2004, 33: 630-5.PubMedGoogle Scholar
  4. De Koning MB, N Bloemen OJ, van Amelsvoort TAMJ, Becker HE, Nieman DH, van der Gaag Mvan, Linszen DH: Early intervention in patients at ultra high risk of psychosis: benefits and risks. Acta psychiatrica scandinavica. 2009, 119: 426-42. 10.1111/j.1600-0447.2009.01372.x.PubMedView ArticleGoogle Scholar
  5. Berge M, Ranney M: Self-esteem and stigma among persons with schizophrenia: Implications for mental health. Care Manag J. 2005, 6: 139-144. 10.1891/cmaj.6.3.139.PubMedView ArticleGoogle Scholar
  6. Corrigan PW, Green A, Lundin R, Kubiak MA, Penn DL: Familiarity with and social distance from people who have serious mental illness. Psychiatr Serv. 2001, 52: 953-8. 10.1176/appi.ps.52.7.953.PubMedView ArticleGoogle Scholar
  7. Stuart H: Reaching Out to High School Youth: The effectiveness of a video-based antistigma program. Can I Psychiatry. 2006, 51: 647-53.Google Scholar
  8. Kadri N, Sartorius N: The global fight against the stigma of schizophrenia. PloS Med. 2005, 2: 0597-9.View ArticleGoogle Scholar
  9. Gaebel W, Zaske H, Baumann AE, Klosterkotter J, Maier W, Decker P, Moller HJ: Evaluation of the German WPA "Program against stigma and discrimination because of schizophrenia-Open the doors": Results from representative telephone surveys before and after three years of antistigma interventions. Schizophr Res. 2008, 98: 184-93.PubMedView ArticleGoogle Scholar
  10. Yoshii H, Watanabe Y, Kitamura H, Chen J, Akazawa K: Effect of an education program on improving knowledge of schizophrenia among parents of junior and senior high school students in Japan. BMC Public Health. 2011, 11 (1): 323-10.1186/1471-2458-11-323.PubMedPubMed CentralView ArticleGoogle Scholar
  11. Tanaka G, Inadomi H, Kikuchi Y, Ohta Y: Evaluating stigma against mental disorder and related factors. Psychiatry Clin Neurosci. 2004, 58: 558-66. 10.1111/j.1440-1819.2004.01300.x.PubMedView ArticleGoogle Scholar
  12. Link BG: Understanding labelling effects in the area of mental disorders: an assessment of the effects of expectations of rejection. Am Sociol Rev. 1987, 52: 96-112. 10.2307/2095395.View ArticleGoogle Scholar
  13. Glantz SA: Primer of biostatistics sixth edition. 2005, New York: The McGraw-Hill CompaniesGoogle Scholar
  14. Mann CE: Factors associated with stigmatization of persons with mental illness. Psychiatric Services. 2004, 55: 185-187. 10.1176/appi.ps.55.2.185.PubMedView ArticleGoogle Scholar
  15. Papadopoulos C, Leavey G, Vincent C: Factors influencing stigma: A comparison of Greek-cypriot and English attitudes towards mental illness in north London. Soc Psychiatry Psychiatr Epidemiol. 2002, 37: 430-434. 10.1007/s00127-002-0560-9.PubMedView ArticleGoogle Scholar
  16. Ministry of Education, Culture, Sports, Science and Technology. [http://www.nta.go.jp/kohyo/tokei/kokuzeicho/minkan2009/pdf/001.pdf]
  17. Ministry of Education, Culture, Sports, Science and Technology. [http://www.mext.go.jp/b_menu/hakusho/html/hpad197501/hpad197501_3_106.html]
  18. Dickerson FB, Sommerville J, Origoni AE, Ringel NB, Parente F: Experiences of stigma among outpatients with schizophrenia. Schizophrenia Bulletin. 2002, 28: 143-155.PubMedView ArticleGoogle Scholar
  19. Shimotsu S, Sakamoto S, Horikawa N, Sakano Y: Reliability and validity of the Japanese version of Link's Devaluation-Discrimination Scale. Seishinka Chiryogaku. 2006, 21: 521-528.Google Scholar
  20. Penn DL, Kohlmaier JR, Corrigan PW: Interpersonal factors contributing to the stigma of schizophrenia: social skills, perceived attractiveness, and symptoms. Schizophr Res. 2000, 45: 37-45. 10.1016/S0920-9964(99)00213-3.PubMedView ArticleGoogle Scholar
  21. Arkar H, Eker D: Influence of a 3-week psychiatric training programme on attitudes toward mental illness in medical students. Soc Psychiatry Psychiatr Epidemiol. 1997, 32: 171-6.PubMedGoogle Scholar
  22. Mehta S, Farina A: Is being 'sick' really better? Effect of the disease view of mental disorder on stigma. J Soc Clin Psychol. 1997, 16: 405-419. 10.1521/jscp.1997.16.4.405.View ArticleGoogle Scholar
  23. Cormack S, Furnham A: Psychiatric labelling, sex role stereotypes and beliefs about the mentally ill. Int J Soc Psychiatry. 1998, 44: 235-247. 10.1177/002076409804400401.PubMedView ArticleGoogle Scholar
  24. Chou K, Mak K: Attitudes to mental patients among Hong Kong Chinese: a trend study over two years. Int J Soc Psychiatry. 1998, 44: 215-224. 10.1177/002076409804400307.View ArticleGoogle Scholar

Copyright

© Yoshii et al; licensee BioMed Central Ltd. 2011

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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