Randomization
BLIND
Doctors use random sequence software to generate 1 to 120 random serial numbers. Random serial numbers and then in the order in which the patients were treated, from front to back. Odd-numbered patients were included in the intervention group, while even-numbered patients were included in the control group. In order to avoid cross-infection during the experiment, the intervention group and the control group were arranged in wards A and B respectively. (Note: Both groups of patients were blinded, meaning they were unaware of whether they were in the experimental group or the control group; Doctors who evaluate the quality of patient care use a blind method, that is, they are unaware whether the evaluated patients are in the experimental group or the control group; The nurses in the control group used a blind method, that is, they were unaware that the ward had become the control group and still used existing working methods to care for patients; The nurses in the experimental group used a non blind method, that is, they were aware of using checklists to care for patients and received unified training.)