Abstract: Objective To explore the latent categories and influencing factors of oral intake function in patients with post-stroke dysphagia, and to provide reference for individualized rehabilitation nursing intervention. Methods Convenience sampling was used to select 393 patients with post-stroke dysphagia in four tertiary grade-A hospitals, and the patients were surveyed by using general information questionnaire and National Institutes of Health Stroke Scale. The latent category growth analysis model was used to identify the potential categories of oral intake function, and its influencing factors were analyzed by multinomial logistic regression. Results Three distinct trajectories were identified as “low risk of stable group”(25.6%), “high risk of stable group”(51.1%), and “high risk of decreasing group”(23.3%). Multinomial logistic regression analysis showed that there were significant differences in age, National Institutes of Health Stroke Scale score, length of tube feeding, and out-of-hospital care institutions among different categories (P<0.05). Conclusion There are 3 trajectories of oral intake function in patients with post-stroke dysphagia, and there is group heterogeneity in their oral intake function. Individualized rehabilitation nursing intervention should be taken according to the trajectory of patients' oral intake function.

Key words: stroke, dysphagia, oral intake function, Latent Class Growth Model, longitudinal study