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Prevalence and Assessment of Depression among Diffuse Idiopathic Skeletal Hyperostosis (DISH) patients

Shalan Joodah Rhemah Al-Abbudi*

Consultant Psychiatrist, F.I.B.M.S.Psych, Imamain Kadhimain Medical City, Baghdad, Iraq

*Corresponding Author:
Shalan Joodah Rhemah Al-Abbudi
Consultant Psychiatrist, F.I.B.M.S. Psych
Imamain Kadhimain Medical City, Baghdad, 70131, Iraq
E-mail: [email protected]

Received date: December 04, 2018; Accepted date: January 01, 2019; Published date: January 08, 2019

Citation: Al-Abbudi SJR, (2019) Prevalence and Assessment of Depression among Diffuse Idiopathic Skeletal Hyperostosis (DISH) patients. Clin Psychiatry Vol.4 No.3:12 doi: 10.21767/2471-9854.100056

Copyright: © 2019 Al-Abbudi SJR, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 
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Abstract

Background: Depression is most frequent among physical illness. Diffuse Idiopathic Skeletal Hyperostosis is a condition in which several ligaments and entheses become ossified.

Objectives: Assessment of depression and the severity of depression among patients with diffuse idiopathic skeletal hyperostosis, and detection of risk factors.

Methods: patients with diffusive idiopathic skeletal hyperostosis, both genders who have consulted during the study period and given their consent were assessed through sociodemographic and clinical data collection, and PHQ-9 questionnaire for depressive disorders evaluation.

Results: The study investigates 43 patients with diffuse idiopathic skeletal hyperostosis. Prevalence of depression was 62%. Almost 88.88% of them were moderate to severe depression. Depression significantly associated with age, gender, occupation, life events, and duration of illness.

Conclusion: depression is high in patients with diffuse idiopathic skeletal hyperostosis. Age, gender, occupation, life events, and duration of illness consider as the significant risk factors.

Keywords

Depression; DISH; PHQ-9; Prevalence; Iraq

Introduction

Diffuse idiopathic skeletal hyperostosis (DISH) is a common systemic condition, of prevalence nearly 10% in those aged >50 years [1]. DISH also called as Forestier’s disease, described firstly in 1950 by Rotes-Querol and Forestier. DISH is systemic idiopathic disease affecting the axial skeleton characterized by anterolateral spinal ligaments ossification and formation of osteophyte along the whole spines [2]. Decreased mobility and mild backache may be the results of ossification of many ligaments [3]. Thoracic spine usually affected by the disorder. Other joints and spines may be affected. Treatment and diagnosis usually delayed because the majority of patients were asymptomatic [4]. The pathogenesis of DISH was not clear, but other factors like; anatomic, endocrine, metabolic, genetic, toxic, and environmental factors may take part [5]. DISH is a disorder of old age, predominantly males male/female ratios 2:1-7:1 [6]. Physical illness induced mental illnesses usually disturbing to volition, personality disorder, and dementia. Mood disorders were accompanied physical illness, and most frequent is depression. Depression comorbid with physical disorders can be reactive or psychogenic inducted by social situation changes or depression directly results from the medical condition [7]. Characteristic features of depression include loss of interest, sadness, low self-esteem, feelings of guilt, sleep disturbance, changed appetite, poor concentration and tiredness. Depression may be long-lasting cores or recurrent episodes, with impairment of person's daily life function, work and school. Severe depression may end with suicide [8]. Depression diagnosis needs experience and accurate evaluation. Clinical practice and research purposes required tools for screening of depression. Many screening questionnaires are available, with different score thresholds to diagnose depression [9]. The Patient Health Questionnaire 9 (PHQ-9) is valid brief questionnaire [10] that used DSM-IV criteria for diagnosis of depression [11]. PHQ- 9 can be self-rated, or interviewer-rated and is well validated dual-purpose questionnaire in the US that gives picture of depression severity [12], and DSM-IV diagnoses of depressive disorders: major depressive disorder, other depressive disorder and any depressive disorder. Validity of PHQ-9 was done in many countries in view of construct validity, diagnostic accuracy [13], changes sensitivity, responsiveness to treatment [14], internal consistency, test-retest reliability [15] and realistic estimates of population base rates [16].

Assessment of depression and the severity of depression among patients with diffuse idiopathic skeletal hyperostosis, and analysis of the significant sociodemographic and clinical risk factors associated with diffuse idiopathic skeletal hyperostosis patients were the aims of this study.

Methods

Design and setting

The current is a cross-sectional study. It was conducted from February 1st, 2015 to 31st August 2018, in the Psychiatry department with cooperation with Rheumatology unit at Imamain Kadhimain Medical City, Baghdad, Iraq.

Study population

All patients with diffusive idiopathic skeletal hyperostosis (DISH), both genders who have consulted within the time of study and given their agreement to participate were included.

Data collection tools

Questionnaires were filled by consultant psychiatrist, which included; the collection of sociodemographic and clinical data and PHQ-9 scale. The diagnosis of diffusive idiopathic skeletal hyperostosis (DISH) was based on the clinical findings, radiographic, and biological arguments. The study used the Arabic version of PHQ-9 to identify depression. Face validity process and internal consistency reliability was measured using Cronbach’s alpha for the PHQ9, the results was 0.857 [17]. Patient Health Questionnaire (PHQ) is a clinical diagnostic tool that is widely utilized worldwide because it provides a practical in clinic tool to screen for psychological disorders. A PHQ-9 score ≥ 10 has a sensitivity of 88% and a specificity of 88% for major depression [13]. Major depressive disorder diagnosed if five or more of the nine criteria of depression have been elicited more than half of the days in the past two weeks and one of the symptoms is depressed mood or anhedonia [13]. PHQ-9 severity score from 0 to 27, since each item of the nine items can be scored from 0-3. (Not at all=0, nearly every day=3) [18].

Statistical analysis

Analysis and processing of data was done using the SPSS version 20 software IBM system. Frequency and percentages were used. Depression prevalence was calculated. P value of <0.05 was considered for statistical significant.

Definition of variables

The independent variables evaluated to explain depression were Sociodemographic and clinical data include; age, gender, marital status, occupation, education, family history of mental illness, traumatic life events, and medical comorbidity. PHQ-9 used for evaluation and assessment of depression.

Ethical issues

After clarifying the aims of this study, informed consent and agreement were getting from each patient. Interviews were carried out with full privacy. Names and other details were kept anonymous.

Results

The current study includes total 52 diffuse idiopathic skeletal hyperostosis (DISH) patients. Nine of them not complete the questionnaire and withdrawn from the study. Data analysis was done for 43 patients. The age range was 45–80 years, mean 58 ± 9.6 years. About 80% fall into the age group ≥50 years. Male was nearly three forth of the sample; 86% married, about 72%of higher education, 60% still active working, non-smokers 72%. Patients with DISH exposed to life events 53.5%, patients with family history positive of mental illness were 11.6%, and about 35% have medical comorbidity (Table 1).

Characteristics No. %
Age Group below 50 years 9 20.9
50-60 years 17 39.5
above 60 years 17 39.5
Gender Male 33 76.7
Female 10 23.3
Marital Status Single 6 14
Married 37 86
Education Intermediate 12 27.9
Secondary 23 53.5
College 8 18.6
Occupation Unemployed 12 27.9
Free Work 23 53.5
Employed 3 7.0
Retired 5 11.6
Housekeeper 6 14.0
Smoking non smoker 31 72.1
Smoker 12 27.9
Life  Events No 20 46.5
Yes 23 53.5
Family History No 38 88.4
Yes 5 11.6
Comorbidity No 28 65.1
Yes 15 34.9

Table 1: Frequency and percentages of the sociodemographic and clinical characteristics of the patients with diffuse idiopathic skeletal hyperostosis (DISH) involve in the study.

Duration of illness was 3–20 years, mean 8.5 ± 4 years. PHQ-9 range was 1–25, mean 12.8 ± 8.28. The prevalence of depression among patients with DISH was 62.8%; about 88.88% of moderate depression to severe depression (Table 2).

  No. %
Depression No 16 37.2
Yes 27 62.8
Severity of Depression mild depression 3 11.11
moderate depression 13 48.14
severe depression 11 40.74

Table 2: Frequency and percentages of depression and severity of depression among patients with diffuse idiopathic skeletal hyperostosis (DISH) involved in this study.

Depression was of significant correlation with age group (P=0.020), gender (P=0.042)

Occupation (P=0.011), and life events (P=0.004) (Table 3).

Sociodemographic and clinical variables Not depressed Depressed P
Age Group below 50 years 5 4 0.020
50-60 years 9 8
above 60 years 2 15
Gender Male 15 18 0.042
Female 1 9
Marital Status Single 4 2 0.108
Married 12 25
Education Intermediate 5 7 0.573
Secondary 7 16
College 4 4
Occupation Unemployed 1 11 0.011
Free Work 11 12
Employed 3 0
Retired 1 4
Smoking non smoker 12 19 0.744
Smoker 4 8
Life  Events No 12 8 0.004
Yes 4 19
Family History No 15 23 0.397
Yes 1 4
Comorbidity No 13 15 0.087
Yes 3 12

Table 3: Correlation of depression with sociodemographic and clinical characteristics of patients with diffuse idiopathic skeletal hyperostosis (DISH) involved in this study.

Depression severity was correlated significantly with age group (P=0.006) and life events (P=0.014) (Table 4).

Sociodemographic and clinical variables not depressed mild depression moderate depression severe depression P value
Age Group below 50 years 5 2 2 0 0.006
50-60 years 9 0 6 2
above 60 years 2 1 5 9
Gender Male 15 2 9 7 0.237
Female 1 1 4 4
Marital Status Single 4 1 0 1 0.180
Married 12 2 13 10
Education Intermediate 5 1 4 2 0.819
Secondary 7 1 8 7
College 4 1 1 2
Occupation Unemployed 1 2 4 5 0.106
Free Work 11 1 6 5
Employed 3 0 0 0
Retired 1 0 3 1
Smoking not smoker 12 1 8 10 0.175
Smoker 4 2 5 1
Life Events No 12 2 4 2 0.014
Yes 4 1 9 9
Family History No 15 3 11 9 0.686
Yes 1 0 2 2
Comorbidity No 13 2 8 5 0.286
Yes 3 1 5 6

Table 4: correlation of severity of depression with sociodemographic and clinical characteristics of patients with diffuse idiopathic skeletal hyperostosis (DISH) involved in this study.

The correlation of depression was statistically significant with duration of illness (P=0.030). The correlation of severity of depression was statistically significant with duration of illness (P=0.023) (Table 5).

severity of depression Duration of illness P value
1-5 years 6-10 years 11-15 years 16-20 years
Depression Not depressed 5 11 0 0 0.030
Depressed 4 12 7 4
Severity of Depression mild depression 1 0 2 0 0.023
moderate depression 2 7 2 2
severe depression 1 5 3 2

Table 5: Correlation of duration of illness with depression and severity of depression of patients with diffuse idiopathic skeletal hyperostosis (DISH) involved in this study.

Discussion

This is the first study explores depression among diffuse idiopathic skeletal hyperostosis (DISH) patients. The prevalence of depression among patients with diffuse idiopathic skeletal hyperostosis (DISH) was 62.8%. Depression was of significant correlation with age group (P=0.020), gender (P=0.042), Occupation (P=0.011), and life events (P=0.004). High severity of depression was found; about 88.88% of moderate to severe depression. Depression was significantly correlated with duration of illness (P=0.030). Severity of depression was significantly correlated with duration of illness (P=0.023). Up to the knowledge of the author there are no exact figures to compare the results of this study with it. Chronic physical disorders consider as one of the traumatic stressful life events that may precipitate depression and other psychological disorders.

The mechanisms behind physical disorders elevate the risk of initiation of depressive disorder were two mechanisms. The first has cognitive or psychological mechanism. Chronic difficulty or life events may induce depressive disorder in susceptible patients. Second mechanism, more specific relation appears to present to link depression with certain physical illness [19]. Different variables have been identified in rheumatological disorders patients that of association with depressive disorder. Variables may include; physical disability degree, physical pain, disease duration, gender, social stress level and availability of social support [20-23]. Adaptation with severe or chronic physical disorders is difficult for the patients that may result in depression. Difficult adaptation may be due to changes social situation. Maladjustment in response to severe stress of medical disorder may results in depression7. Mental disorders form 12.1% of depression global burden and by the year 2020 are increase to 15%. 25% of People may be affected during their lives by behavioural and mental disorders 23. People with chronic medical disorders are complaining of depressive disorder twice as compared with people without chronic illnesses [23,24]. There is association of depression with different disorders that presented with somatic or physical symptom, include, fibromyalgia, chronic fatigue and chronic pain states [19].

In conclusion depression is high in diffuse idiopathic skeletal hyperostosis (DISH) patients. Age, gender, occupation, life events, and duration of illness consider as the significant risk factors. Patients may get benefit from close liaison between mental health professionals and rheumatologist.

References

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