This study aims to evaluate the outcomes of the advanced training program for laparoscopic radical gastrectomy (ATP-LRG). The research subjects are the trainees who participated in this training program.

Written informed consent is not required because of the observational and anonymous nature of this study. ATP-LRG is a national training program carried out by Fujian Medical University Union Hospital. Each training lasts about 1.5 days, which includes 1) detailed technique description; 2) prevention and solving of intraoperative complications; 3) live surgery performance; 4) theory and practice of clinical research; 5) comments on trainees' videos; and 6) questions, answers and discussions. In this study, 875 trainees who participated in ATP-LRG from January 2015 to October 2020 were interviewed using electronic questionnaires. Using a repeated-measures design to examine differences in outcomes before and after participating in the training. Questionnaire Star (Changsha Ranxing Information Technology Co., Ltd), a most widely used professional online questionnaire software platform in China, was used to design and create a link to the questionnaire. The questionnaire's link was sent to each trainee via WeChat (Tencent Holdings Limited), the most commonly used social networking software in China.

Inclusion Criteria:

• Participated in ATP-LRG between January 2015 and October 2020
• Have contact information

Exclusion Criteria:

• Repeated participation in ATP-LRG
• Refuse to fill out the questionnaire

From September 2009 to July 2021, Fujian Medical University Union Hospital have carried out 113 ATP-LRG courses, training a total of 1,447 trainees nationwide. In order to reduce recall bias, this study used an electronic questionnaire to conduct a return visit to 875 trainees who participated in the ATP-LRG for one year from January 2015 to October 2020.