Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa học đề tài : Quality of life in Croatian Homeland war (19911995) veterans who suffer from post-traumatic stress disorder and chronic pain | Bras et al. Health and Quality of Life Outcomes 2011 9 56 http content 9 1 56 HEALTH AND QUALITY OF LIFE OUTCOMES RESEARCH Open Access Quality of life in Croatian Homeland war 19911995 veterans who suffer from post-traumatic stress disorder and chronic pain 1 2 3 1 4 1 Marijana Bras Vibor Milunovic Maja Boban Lovorka Brajkovic Vanesa Benkovic Veljko Đorđevic and Ozren Polasek5 Abstract Background The aim of this study was to investigate the quality of life in Croatian homeland war veterans who suffer from post-traumatic stress disorder and chronic low back pain LBP . Methods A total of 369 participants were included classified in four study groups those with post-traumatic stress disorder PTSD N 59 those with both PTSD and lower back pain PTSD LBP N 80 those with isolated LBP N 95 and controls N 135 . WHOQOL-BREF survey was used in the estimation of quality of life. The data were analysed using statistical methods and hierarchical clustering. Results The results indicated a general pattern of lowering quality of life in participants with both psychological PTSD and physical LBP burden. The average overall quality of life was for the PTSD LBP group for the PTSD group for the LBP group and for the controls notably all the pair-wise comparisons were significantly different at the level of P except for the pair LBP-controls which was insignificant . This result indicated that quality of life was reduced for in patients with LBP in patients with PTSD and in PTSD LBP suggesting strong synergistic effect of PTSD and LBP. The analysis also identified several clusters of participants with different pattern of quality of life related outcomes reflecting the complex nature of this indicator. Conclusions The results of this study reiterate strong impact of PTSD on quality of life which is additionally reduced if the patient also suffers from LBP. PTSD remains a substantial problem in Croatia nearly two .