Abstract:
                                      Objective: To analyze the symptom trajectory of memory and executive function in patients with hemorrhagic stroke during the recovery phase based on longitudinal study,identify different latent subgroups,and explore their influencing factors,so as to provide a scientific basis for developing individualized rehabilitation protocols. 
Methods: A total of 136 patients with hemorrhagic stroke were selected as the study subjects using simple random sampling method.General information questionnaire,memory and executive screening scale,and social support rating scale were used for investigation.Latent growth mixture model was employed to analyze the developmental trajectory of patients' memory and executive function,and univariate analysis and logistic regression analysis were used to identify predictive factors affecting the trajectory. 
Results: The recovery trajectory of memory and executive function in the recovery phase of hemorrhagic stroke could be divided into high-level memory and executive ability group,and low-level memory and executive ability group.Patients in the high-level memory and executive ability group exhibited relatively stable and high memory and executive ability during the recovery phase,while patients in the low-level memory and executive ability group recovered slowly and might even persist at a lower level.Multivariate logistic regression results indicated that family history of cerebral hemorrhage,combined chronic diseases,and smoking history were risk factors for the low-level memory and executive ability (
P<0.05 to 
P<0.01).Educational level of high school or above,receiving rehabilitation therapy,and social support scores were protective factors for the high-level memory and executive ability (
P<0.01). 
Conclusions: The recovery trajectory of memory and executive function in patients with hemorrhagic stroke during the recovery phase can be divided into high-level trajectory and low-level trajectory.High educational level,high social support,and receiving rehabilitation therapy are beneficial to the recovery of memory and executive function.Family history of cerebral hemorrhage,combined chronic diseases,and smoking history are not conducive to the recovery of memory and executive function.Intervention measures can be developed based on the above influencing factors to improve patients' memory and executive function.