• Xizhen Huang, Baolin Luo, Yanchun Peng, Feixin Yan, Sailan Li, Fen Lin, Qinghua Lin, Qingyang Ye, Liangwan Chen, and Yanjuan Lin.
• Department of Cardiovascular Surgery, Fujian Medical University Union Hospital, Fuzhou, China.
• J Womens Health (Larchmt). 2024 Nov 1; 33 (11): 155415651554-1565.

AbstractBackground: There is still controversial or limited evidence on whether sex differences exist in clinical characteristics, the risk of contrast-induced nephropathy (CIN), and other clinical outcomes of patients who received coronary angiography (CAG) and/or percutaneous coronary intervention (PCI). The aim of this study was to characterize the effect of sex on clinical characteristics and outcomes of patients undergoing CAG and/or PCI. Methods: A total of 3,340 consecutive patients undergoing CAG and/or PCI from May 2017 to December 2022 were assessed in this retrospective study. Subgroup analyses by sex were performed. Clinical characteristics, treatments, the risk of CIN, and other clinical outcomes, including in-hospital and follow-up, were compared between females and males. Results: Females undergoing CAG and/or PCI tended to have an advanced age (65.8 versus 63.3 years, p < 0.001), a higher burden of complications, and received PCI less frequently compared with males (43.2% versus 64.2%, p < 0.001). After adjustment, female sex was associated with a higher incidence of CIN [adjusted odds ratio (aOR) 1.47; 95% CI 1.08-2.01; p = 0.015] and a higher all-cause readmission rate (aOR 1.26; 95%CI 1.02-1.56; p = 0.031). Meanwhile, females undergoing CAG alone demonstrated a higher risk of severe arrhythmia compared with males after controlling for potential confounders (aOR 1.52; 95% CI 1.12-2.04; p = 0.006). Conclusion: Sex disparities exist in the clinical characteristics, treatments, the risk of CIN, and other clinical outcomes among patients undergoing CAG and/or PCI. Female sex was identified as an independent predictor of risk for CIN, all-cause readmission rate, and severe arrhythmia.

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