Abstract: Objective To analyze the usage of vitamin injections among inpatients so as to provide references for clinical medications and monitoring of drug use. Methods The data was collected from 10 A-class hospitals. Inpatients who had been treated with vitamin injections between 2020 and 2022 were selected as the subjects. The baseline information of the patients, departments, diagnosis, and medications was collected. MySQL 5.7 and Stata 17 software were used for data governance and statistical analysis. The counting data was statistically described by the number of cases and composition ratio. Results Vitamin injections were used 31 307 times, 17 860 of which involved males (57.05%). The percentage of people over 60 years old was 52.23%. Most of the patients paid via medical insurance (92.51%). The top five departments in terms of usage were the Department of General Surgery (23.43%), Department of Intensive Care Medicine (9.90%), Anorectal Department (8.15%), Department of Oncology (7.75%), and Department of Urology (7.52%). The top five diseases involved were pneumonia (the pathogens not specified) (5.14%), gastric malignant tumor (4.64%), other medical care (3.72%), colon malignant tumor (3.56%), malignant tumor in unspecified locations (3.40%). Potassium chloride (4.48%), insulin (2.40%), human albumin (1.43%), furosemide (1.09%), calcium gluconate (1.08%), heparin (1.04%), compound amino acids (18AA-II) (1.00%) were the combined medications most frequently used. Conclusion The real-world data suggests that the usage of vitamin injections is the highest among patients under general surgery, and among patients with pneumonia (pathogens not specified). The analysis of medications with vitamin injections has revealed the characteristics of patients involved, which can benefit medications and patients.

Key words: vitamin, injection, real world data, drug use, medications