The influence of depression-PTSD comorbidity on health-related quality of life in treatment-seeking veterans.

Abstract:

Objective:Posttraumatic stress disorder (PTSD) and depression substantially impair health-related quality of life (HRQOL) for many Canadian Armed Forces (CAF) veterans. Although PTSD and depression are highly comorbid, little is known about whether the disorders may interact in their association with HRQOL. We sought to investigate whether depressive symptoms modify the relation between PTSD and HRQOL in treatment-seeking veterans. Method:We accessed the clinical data of 545 CAF veterans aged 18 to 65 years who were seeking treatment at a specialized clinic in London, Ontario. We used hierarchical linear regression to assess the additive and multiplicative relations between depression and PTSD symptoms on HRQOL, controlling for age and alcohol/substance abuse. Simple slopes were examined to probe significant interactions. Results:Probable PTSD and major depression were present in 77.4% and 85.3% of the sample, respectively, and 73.0% of the sample presented with probable PTSD-depression comorbidity. Depression symptoms significantly modified the relation between PTSD symptoms and overall mental HRQOL (β = 0.12, p <0.001, ∆R2  = 0.014), and role impairment due to emotional difficulties (β = 0.20, p <0.001, ∆R2  = 0.035). Simple slope analyses revealed the impact of PTSD was greater among those with lower depression symptoms and became weaker with greater depression symptom severity. In adjusted models, only depression was significantly associated with all mental and physical HRQOL domains; PTSD was not associated with physical HRQOL, role emotional impairment, or vitality. Conclusions:For those with severe comorbid depression, PTSD symptoms were no longer associated with mental HRQOL, particularly in areas related to emotional functioning. Findings suggest the importance of targeting depression in patients presenting with PTSD-depression comorbidity. :Objetivo: El trastorno de estrés postraumático (TEPT) y la depresión afectan sustancialmente la calidad de vida relacionada con la salud (CVRS) para muchos veteranos de las Fuerzas Armadas de Canadá (CAF). Aunque TEPT y depresión son altamente comórbidos, poco se sabe acerca de si los trastornos pueden interactuar en su asociación con la CVRS. Quisimos investigar si los síntomas depresivos modifican la relación entre el TEPT y la CVRS en los veteranos que buscan tratamiento.Método: Accedimos a los datos clínicos de 545 veteranos de CAF de 18 a 65 años que buscaban tratamiento en una clínica especializada en London, Ontario. Utilizamos regresión lineal jerárquica para evaluar las relaciones aditivas y multiplicativas entre depresión y síntomas de TEPT en la CVRS, controlando por edad y abuso de alcohol/sustancias. Las pendientes simples se examinaron para investigar interacciones significativas.Resultados: TEPT probable y depresión mayor estaban presentes en el 77.4% y el 85.3% de la muestra, respectivamente, y el 73.0% de la muestra presentaba comorbilidad probable TEPT-depresión. Los síntomas de depresión modificaron significativamente la relación entre los síntomas de TEPT y la CVRS mental general (β = 0.12, p <0.001, ∆R2 = 0.014), y el deterioro de rol debido a dificultades emocionales (β = 0.20, p <0.001, ∆R2 = 0.035). Los análisis de pendiente simple revelaron que el impacto del TEPT fue mayor entre aquellos con síntomas de depresión más bajos y se debilitaron con una mayor gravedad de los síntomas de depresión. En los modelos ajustados, solo la depresión se asoció significativamente con todos los dominios de CVRS mental y física; El TEPT no se asoció con la CVRS física, deterioro emocional de rol o la vitalidad.Conclusiones: Para aquellos con depresión comórbida severa, los síntomas de TEPT ya no se asociaban con la CVRS mental, particularmente en áreas relacionadas con el funcionamiento emocional. Los hallazgos sugieren la importancia de enfocarse en la depresión en pacientes que presentan comorbilidad de TEPT-depresión. :目标: 创伤后应激障碍 (PTSD) 和抑郁症严重损害了许多加拿大武装部队 (CAF) 退伍军人的健康相关生活质量 (HRQOL) 。尽管PTSD和抑郁症高度共发, 但对于这些疾病与HRQOL的关联中是否可能存在交互作用知之甚少。我们试图考查寻求治疗的退伍军人中, 抑郁症状是否会影响PTSD与HRQOL之间的关系。方法: 我们获得了在安大略省伦敦市一家专科门诊接受治疗的545名18至65岁的CAF退伍军人的临床数据。我们控制了年龄和酒精/药物滥用, 使用分层线性回归来评估抑郁与PTSD症状之间加性和乘性关系对HRQOL的作用。考查了简单斜率以探查显著的交互作用。结果: 样本人群中分别有77.4%和85.3%患有可能的PTSD和重性抑郁症, 73.0%有可能的PTSD-抑郁共病。抑郁症状显著影响PTSD症状与总体心理HRQOL之间的关系 (β= 0.12, p<0.001, ΔR2 = 0.014), 以及由情绪困扰导致的角色障碍 (β= 0.20, p <0.001, ΔR2 = 0.035) 。简单斜率分析显示, PTSD的影响在抑郁症状较轻者中更强, 在抑郁症状较严重者中更弱。在校正模型中, 只有抑郁与所有心理和躯体HRQOL域均显著相关PTSD与躯体HRQOL, 角色情感障碍或生命力无关。结论: 对于有严重抑郁症并发的患者, PTSD症状不再与心理HRQOL相关, 尤其是在情绪功能相关领域。研究结果表明了在患有PTSD-抑郁共病的患者中以抑郁症为靶点的重要性。.

journal_name

Eur J Psychotraumatol

authors

Forchuk C,Nazarov A,Hunt R,Davis B,St Cyr K,Richardson JD

doi

10.1080/20008198.2020.1748460

subject

Has Abstract

pub_date

2020-06-04 00:00:00

pages

1748460

issue

1

issn

2000-8066

pii

1748460

journal_volume

11

pub_type

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