目的 基于潜在剖面分析，了解中青年意外创伤患者创伤后成长水平的类别特征， 探究不同类别意外创伤患者创伤后成长水平的影响因素。 方法 通过横断面研究，采用便利抽样法，选取2022年10月-2023年3月在青岛市某三级甲等医院创伤外科的225例中青年意外创伤患者为研究对象。 采用一般资料调查表、简体中文版创伤后成长评定量表进行调查。 结果 潜在剖面分析结果显示，中青年意外创伤患者创伤后成长特征可分为4个潜在类别：低成长组（1.8%）、中成长组（62.3%）、中成长-高关系组（32.6%）、高成长组（3.4%）。多元Logistic 回归分析结果显示，年龄、家庭人均月收入、支付方式、创伤类型是中青年意外创伤患者创伤后成长的影响因素（P<0.05）。 结论 中青年意外创伤患者创伤后成长水平存在明显异质性， 建议医护人员根据不同类别患者创伤后成长的特征开展心理疏导、信息支持等干预措施，以提高其创伤后成长水平。

Objective Based on potential profile analysis，to understand the category characteristics of post- traumatic growth level of young and middle-aged accidental trauma patients，and to explore the influencing factors of different categories of post-traumatic growth level in accidental trauma patients. Methods Through a cross- sectional study，225 young and middle-aged accidental trauma patients in the Department of Trauma Surgery of a tertiary hospital in Qingdao City from October 2022 to March 2023 were selected by convenience sampling method. A general information questionnaire and the simplified Chinese version of the Posttraumatic Growth Rating Scale were used for survey. Results The results of potential profile analysis showed that the posttraumatic growth characteristics of young and middle-aged accidental trauma patients could be categorized into four potential categories：low-growth group （1.8%），medium-growth group （62.3%），medium-growth-high-relationship group （32.6%）， and high-growth group （3.4%）. The results of the multiple logistic regression analysis showed that age，per capitamonthly family income，payment method，and type of trauma were the influencing factors of posttraumatic growth in young and middle-aged accidental trauma patients （P<0.05）. Conclusion There is obvious heterogeneity in the level of post-traumatic growth of young and middle-aged accidental trauma patients，and it is recommended that healthcare professionals carry out interventions such as psychological counseling and appropriate information support according to the characteristics of different post-traumatic growth categories in patients in order to improve the level of post-traumatic growth of patients.