Supplementary Figure 1.

Correlation matrix analysis. IIEF-5 represent International Erectile Function Score 5; RDI represent Respiratory disorder index; OAI represent Obstructive apnea index; ODI represent Oxygen decrease index; LORT represent Longest oxygen reduction time; ORF represent oxygen reduction frequency; MOR represent Maximum oxygen reduction; SIT90% represent Oxygen saturation less than 90%; BOADAI represent Blood oxygen accumulation distribution area index. × represent the P value of Spearman (Rho) correlation coefficient > 0.05; The inverted triangle below the matrix indicates the direction of correlation coefficient (absolute value) decreases. * represent the correlation coefficient between BOADAI and IIEF-5 was significantly higher than the coefficients of most apnea-related parameters including LA, CA, OAI, OA and HO, and IIEF-5 (*represent P < .05, ** represent P < .01). ^† represent the coefficient between lowest SaO2 and IIEF-5 was not significantly different with coefficient between DRI and IIEF-5.