Process of allocation
concealment:
|
The computer software of the central random system is used to generate random numbers and serial numbers. The random numbers of the corresponding random sequences are designated as the control group and the treatment group and recorded, and are executed by special personnel; The person in charge of random grouping shall not participate in the work of subject inclusion and intervention, and the random grouping shall be kept strictly. Except for the intervention staff, the subject and other staff shall be kept confidential.
|
Statistical method:
|
The main analysis contents include: distribution of cases. The size of different data sets in each group, the distribution of cases in each center, the detailed list of total dropped cases, discontinued cases and reasons. Comparability analysis. Demographic data and other basic value indicators were compared to measure the comparability of the two groups. Compliance analysis. Compare whether the patients in the treatment group and the control group perform according to the design scheme and whether they use the drugs and foods prohibited in the scheme. The compliance shall be evaluated based on the records in the CRF form of the study object, and calculate the number and percentage of cases < 80%, 80% - 100%, and > 100%. Effectiveness analysis. Intention To Treat and Per Protocol analysis were used for main indicators and global indicators. Since this study is a multi center clinical trial, the influence of central effect on efficacy indicators should be considered in the analysis. Analysis of factors affecting the efficacy. If age, sex, disease type, disease condition, etc. are significantly different between the groups before the test, or there are significant factors that affect the efficacy, these factors should be considered as covariates when comparing the groups, covariance analysis or logistic regression analysis should be performed, and the combined drugs should be listed in detail. Security analysis. First, according to the requirements for correlation of adverse reactions, the adverse events and adverse reactions of the three groups (including the number and incidence of various adverse events) are described in a list, and the causes and explanations are listed. If comparison is needed, chi square test can be used for statistical analysis of adverse reactions. The statistical analysis will be calculated by using the statistical analysis software Spss26.0. Two sided test was used, and p < 0.05 is the standard for significant difference.
|