Academic journal article Asian Social Science

The Mediating Role of Depressive Symptom Severity in the Relationship between Obsessive-Compulsive Disorder and Quality of Life

Academic journal article Asian Social Science

The Mediating Role of Depressive Symptom Severity in the Relationship between Obsessive-Compulsive Disorder and Quality of Life

Article excerpt

Abstract

The present study investigated the mediating role of depressive symptom severity in the relationship between OCD severity and quality of life (QoL) with Malaysian sample. A total of 126 Malaysians were required to complete the questionnaires given, which measure for different aspects of QoL, OCD and depression severity. The results revealed that depression severity and OCD severity were positively correlated. OCD severity was negatively correlated with physical functioning, emotional well-being, social functioning and general health. In addition, depression severity mediated the relationship between OCD severity and emotional well-being and social functioning.

Keywords: depressive symptom severity, obsessive-compulsive disorder, quality of life

1. Introduction

Obsessive-compulsive disorder (OCD) is a disorder characterized by the presence of intmsive thoughts or obsessions and repetitive behaviors such as physical or mental rituals (American Psychiatric Association, 2000). Studies have indicated that OCD is capable of causing profound disabilities in social and family relationship (Hollander, 1997; Koran et al., 1996; Stein et al., 1996), learning ability (Stein et al., 1996), and occupational functioning (Hollander, 1997; Koran et al., 1996; Stein et al., 1996; Leon, Portera, & Weissman, 1995). OCD also increases the risk for other disorders such as depression (Koran et al., 1996). Comorbidity is coimnon for patients with OCD since past studies had estimated that 70% of the patients displayed depressive symptoms as well as the other form of anxiety disorders (Rasmussen, 1994; Storch et al., 2010). Considering the impairments associated with OCD and the rate of comorbidity, it is not unusual that quality of life (QoL) would be affected as well. Based on the literature review, it was gathered that most of the scope in OCD prevalence study is presented as a comorbidity of other mental disorders. For example, in the national survey from the Australian population, 79.7% of OCD patients have at least one of the mental disorders, with major depression listed as the highest comorbidity disorder at 54% (Crino, Slade, & Andrews, 2005). In Malaysia, there is limited published data on OCD, though . most of them, if available, cover comorbidity (Hamid & Razak, 2010; Jaafar, Midin, & Reddy, 2009). As such, there is a demand for more OCD studies in Malaysia.

There are four domains of QoL, which include physical health, emotional well-being, social functioning and general health (Ware, Snow, Kosinski, & Gandek, 1993). Past studies have established that OCD has the capability to impair QoL related aspects (Hou, Yen, Huang, Wang, & Yeh, 2010; Blom, Hagestein-de Bmjin, De Graaf, Ten Have, & Denys, 2011; Srivastava, Bhatia, Thawani, & Jhanjee, 2011; Subramaniam, Abidin, Vaingankar, & Chong, 2012). The relationship between OCD and QoL, however, is not as simple as depicted by past studies. Hou et al. (2010) stated that the relationship between OCD and QoL aspects are influenced by multiple factors and one of them is the comorbid of depression. In addition, they stated that when depression comorbids with OCD, a more severe impairment will be inflicted on QoL. Cassin, Richter, Zhang, and Rector (2009) stated that with the comorbidity of depression, patients with OCD reported greater decrement in their QoL aspects. These outcomes have been consistently replicated by other studies (Abramowitz, Storch, Keeley, & Cordell, 2007; Besiroglu, Uguz, Saglam, Agargun, & Cilli, 2007). In fact, Kugler et al. (2013) have suggested depression as the mediator for the relationship between OCD and QoL. From their study, the depression severity significantly mediated the relationship for OCD severity across the domains of emotional well-being, social functioning and general health, but not physical functioning.. In this light, the present study aims to show that OCD severity may contribute to depression severity due to withdrawal from certain activities, and therefore, negatively impacted QoL. …

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