In univariable logistic regression analysis, age above 40 years (OR [95% CI], 2.88 [1.11, 8.44]), female sex (OR [95% CI], 2.65 [1.05, 7.33]), current smoker (OR [95% CI], 4.40 [1.40, 12.9]), three or more involved pulmonary lobes (OR [95% CI], 4.40 [1.40, 19.3]), and a higher levels of urea nitrogen (OR [95% CI], 1.26 [1.04, 1.64]) were associated with a higher risk of PTSD, while a higher level of albumin (OR [95% CI], 0.89 [0.80, 0.97]) was associated with a lower risk of PTSD. The gene discussed is ALB; the disease is post-traumatic stress disorder.