0.001,-0.628/ < 0.001; HPT:r/P = -0.637/ < 0.001,-0.583/ < 0.001). The elevat- ed levels of serum ANXA1, sCD14 and HPT are the risk factors for death of elderly COPD complicated with pulmonary in - fection [HR (95% CI) = 6.375(2.415 -16.829),4.757(1.834 -12.338),5.640(3.117 -10.204)].