Fig. 2

a The occurrence rates of IPN were observed in high, moderate and low nCD64 index group; b within the high nCD64 index group, based on the ranked nCD64 index from high to low, a total of 67 patients were divided into eleven group using equal frequency method to avoid data concentration in a single group; c to analyze the risk factors for IPN using logistic regression analysis; d Correlation analysis: Larger circles and darker colors indicate larger absolute values of correlation coefficients