CRP and sarcopenia: Multivariable analysis showed that preoperative sarcopenia(OR = 3.716, 95% CI:1.618–8.814, P = 0.005) was independently linked to early POCD after adjusting for age 80 and above (OR = 3.364, 95% CI:1.343–8.427, P = 0.01), and high-sensitivity C-reactive protein (Hs-CRP) > 6 mg/L(OR = 3.229, 95% CI:1.308–7.968, P = 0.011).