By employing the nominal group technique, as per the process standard of the EQUATOR Collaboration Network, experts were selected through purposeful sampling. Two rounds of nominal group discussions were conducted, and the essential information of the utilization of the consensus method was extracted from the literature. After comparison, discussion, evaluation, and optimization, a list of 3 fields, 11 themes, 63 necessary items, and 28 supplementary items was eventually constructed to upgrade the standardization and rigor of the application of the consensus method in the future, assisting guideline developers to plan the consensus process.
