目的 了解急性ST段抬高型心肌梗死患者入院至球囊扩张（以下简称“门—囊时间”）延迟率及影响因素。 方法 系统检索中国生物医学文献数据库、中国知网、万方数据库、维普数据库、PubMed、Web of Science、Cochrane Library、Embase数据库中关于急性ST段抬高型心肌梗死患者院内门—囊时间延迟率及影响因素的相关文献，检索时间为建库至2025年7月31日。采用Stata 18.0和RevMan 5.4软件进行Meta分析。 结果 共纳入20篇文献。Meta分析结果显示，院内门—囊延迟发生率为42%。影响因素包括农村（OR=3.12）、非“120”来院（OR=2.52）、非工作日就诊（OR=2.15）、消化道疾病（OR=2.79）、女性（OR=1.41）、高龄（OR=1.39）、自费（OR=1.07）、糖尿病（OR=1.17）、肾脏疾病（OR=1.64）、外周血管疾病（OR=1.22）和教育程度高（OR=0.39）。结论 急性ST段抬高型心肌梗死患者院内门—囊延迟率较高，受多种因素影响。针对上述高危人群，医护人员应开展结构化筛查、落实优先分诊机制并建立介入团队24 h备班体系，同时系统性优化胸痛中心多学科协作流程，完善农村地区胸痛转诊网络建设。该研究可为构建个性化干预策略，落实指南推荐的门—囊延迟≤90 min目标提供循证依据。

Objective To investigate the rate and influencing factors of in-hospital door-to-balloon time delay in patients with acute ST-segment elevation myocardial infarction（STEMI）. Methods PubMed，Cochrane Library，Web of Science，Embase，CBM，CNKI，Wan Fang and VIP were systematically searched for related literature on the rate and influencing factors of in-hospital door-to-balloon time delay in patients with acute ST-segment elevation myocardial infarction，the search period was from the establishment of the databases until July 31，2025. Meta-an-alysis was performed using Stata 18.0 and RevMan 5.4. Results A total of 20 studies were included. The meta-analysis results showed that the in-hospital door-to-balloon time delay rate was 42%. The identified risk factors included rural residence（OR=3.12），non-ambulance admission（OR=2.52），presentation on non-working days（OR=2.15），history of gastrointestinal diseases（OR=2.79），female（OR=1.41），advanced age（OR=1.39），self-payment（OR=1.07），history of diabetes（OR=1.17），history of renal diseases（OR=1.64），history of peripheral vascular diseases（OR=1.22） and higher education level（OR=0.39）. Conclusion The in-hospital door-to-balloon delay rate in STEMI patients is relatively high and affected by multiple factors. For these high-risk populations，healthcare providers should conduct structured screening，prioritize triage protocols and establish a 24-hour on-call system for the interventional team. Meanwhile，multidisciplinary collaboration processes in chest pain centers should be systematically optimized，and the construction of chest pain referral networks in rural areas should be improved. This study provides an evidence-based basis for developing individualized intervention strategies and achieving the guideline-recommended goal of door-to-balloon delay≤90 minutes.