| Objectives（1）Develop a content module for the prevention of colorectal cancer with malignant bowel obstruction based on the theory of self-care to provide a content basis for Wechat mini programs;（2）Develop self-care Wechat mini program for the prevention of colorectal cancer malignant bowel obstruction based on the theory of user-centered designand test its usability.Methods（1）Content module construction of Wechat mini program for preventing colorectal cancer malignant bowel obstructionLiterature analysis,qualitative research and Delphi method were used to develop the content module of Wechat mini program to prevent malignant bowel obstruction of colorectal cancer.Through literature analysis,the literature about prevention and care of malignant bowel obstruction were retrieved,and the care interventions were combined with self-care theory preliminarily develop the content module of the Wechat mini program.Through in-depth interviews with individuals selected for purpose sampling,the needs of colorectal cancer patients for the prevention of malignant bowel obstruction and their preference for self-care through Wechat mini-program were discussed,forming the first draft of mini-program content module.Complete the revision of the initial draft of the Wechat mini program function module through the Delphi method,and determine the content module of the Wechat mini program.（2）Usability evaluation of Wechat mini program for prevention of colorectal cancer malignant bowel obstructionColorectal cancer patients were selected by convenience sampling method,and the patients were instructed to use Wechat mini program on the day of admission.Before the patients were discharged,the general population information and System Usability Scale were distributed to the patients on site.Meanwhile,the user behavior data in the background system was analyzed to complete the Wechat mini program usability evaluation of self-care for the prevention of malignant bowel obstruction.Excel 2019 was used to statistics on the availability of Wechat mini programs and record the existing problems.Results（1）After systematic retrieval and quality evaluation,a total of 26 literatures were retained.According to the self-care theory and the analysis of the literature content,a total of 13 sub-themes were formed.The theme of self-care maintenance includes 3sub-themes: dietary principles and attention,forming good defecation habits and ensuring proper daily exercise.Self-care monitoring includes 4 sub-themes:assessment of risk factors,assessment of physical signs,assessment of laboratory tests and monitoring of prognostic indicators.The theme of self-care management includes5 sub-themes: basic knowledge,self-care intervention for potential intestinal obstruction,cooperation of conservative treatment,decision support for other treatment methods and social support.Through literature content analysis,Wechat mini program for the prevention of malignant bowel obstruction in colorectal cancer patients has been preliminarily formed,providing a content framework.Qualitative interviews were conducted on 12 patients with colorectal cancer complicated with malignant bowel obstruction.The text data generated 4 topics,13 sub-topics and 57 contents according to the pre-established coding,among which a topic and sub-topic about "content requirements of Wechat mini program" were added.After two rounds of consultation by 15 experts,the opinions of the experts in the two rounds accounted for 66.67% and 40% respectively,indicating that the experts have a good enthusiasm for participation.The coordination degree of expert in the two rounds was 0.127（P<0.001）and 0.226（P< 0.001）,the coefficient of variation within a single item was0-0.16 in the first round,and 0-0.22 in the second round,indicating that experts’ opinions were well coordinated.4 themes,13 sub-themes and 57 contents have been formed after the modification and improvement of experts’ opinions.The usability score of the 30 patients was 84.04 ± 15.85,including 64.50 ± 8.1for ease of use and 18.42±6.02 for ease of learning,indicating that the usability of the We Chat program was good.In terms of user behavior data cumulative visits: between January 5 and February 5,2022,30 people had 1670 cumulative visits to the We Chat program,with an average of 52 visits per person and 12 people（36.36%）with visit times longer than 100 seconds.No users reported system failures during the usage period,and three users made suggestions for better use of the We Chat mini program.DiscussBased on literature analysis,qualitative research and Delphi expert consultation,the content of Wechat mini program is professional,scientific and pays attention to the needs of users.Moreover,the availability of the Wechat mini program is good,which can be further promoted in clinical practice to research its effectiveness. |
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