The other risk factors of CAP consisted of the habit of smoking (50%); drunk (14.58%); underlying lung diseases (86.11%); underlying cardiac diseases and heart failure (25.69%); chronic liver failure (8.33%); chronic renal failure (5.56%); diseases of central nervous system (CNS) (4.86%); cancer diseases (1.39%); malnutrition (20.14%); using previous antibiotics (57.64%), previous corticoides (18.1%), and immune depression drugs (1.39%).