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Evaluating Depression and Anxiety in patients diagnosed with dengue, using the PHQ-9 GAD-7 Questionnaire

<p>We conducted a survey in a tertiary care hospital in Karachi, Pakistan, using the PHQ-9 GAD-7 questionnaire to evaluate dengue patients for anxiety and depression following their signs and symptoms, amid the dengue epidemic in Pakistan in late 2019.</p> <p>Dengue fever is the most frequently spreading mosquito borne disease and is a considerable health problem in tropical and subtropical areas around the globe.¹Dengue fever is caused by the dengue virus, that is an enveloped single stranded RNA virus belonging to the genus Flavivirus and family Flaviviridae. Transmission of dengue virus to a human takes place via bite of infected female mosquito of the genus&nbsp;<em>Aedes</em>, mostly&nbsp;<em>Aedes aegypti (Ae. aegypti)</em>&nbsp;and rarely&nbsp;<em>Aedes albopictus</em>. The&nbsp;<em>Ae. aegypti</em>&nbsp;mosquito particularly bites during the day, and is found in tropical and subtropical areas and is known to breed in collected stagnant water.²The incubation period of the dengue fever is 3 to 14 days (4 to 7 days on average). Dengue fever can result on infection with any of the four serotypes of dengue virus (DENV 1&ndash;4) that can go on to produce an array of symptoms, ranging from asymptomatic infection to a severe life-threatening illness. Symptomatic dengue illness is typically classified into dengue fever (DF), which is a self-limiting febrile illness, or a more severe form, dengue hemorrhagic fever (DHF)/dengue shock syndrome (DSS).³</p> <p>The deteriorating physical health of the patients puts a strain on their psychological health as well. This could potentially lead to psychiatric manifestations during the course of the illness and cause dengue patients to be at a significant risk of experiencing multiple psychological manifestations such as depression, anxiety, and distress, that too at twice the rate of the general population.^4,5Similar findings have been reported from a study conducted in Pakistan, that suggests a significant prevalence of anxiety and depressive symptoms in patients with dengue fever.⁶A study by Anurag et al reported, multiple dengue patients showing significant psychiatric morbidity. Fear of death was the most prominent symptom encountered in the acute phase of the disease followed by anxiety. Even after recovering from dengue, the element of death phobia remained, while the remaining psychiatric symptoms started to fade away.⁷</p> <p>The Patient Health Questionannire-9 scale⁸ (PHQ-9) and the&nbsp;Generalized Anxiety Disorder-7 scale⁹ (GAD-7) closely follow the&nbsp;DSM-IV&nbsp;diagnostic criteria for depression and generalized anxiety disorder, respectively. Additionally, GAD-7 demonstrates sensitivity to the presence of&nbsp;social phobia, panic disorder and&nbsp;post-traumatic stress disorder (PTSD)⁹. The PHQ-9 and GAD-7 have strong internal and test-retest reliability as well as construct and factor-structure validity.¹⁰</p> <p><strong>Conclusion</strong></p> <p>Our survey reports the delayed psychological morbidity outcomes for 43 patients diagnosed with dengue fever, with respect to their PHQ-9 GAD-7 Scores. This may warrant the healthcare professionals to incorporate mental health assessment and counselling for dengue patients alongside the symptomatic treatment to help improve the disease prognosis.</p>