To explore the application effect of the oral nutrition supplements(ONS) compliance nursing intervention scheme based on the behavior change wheel(BCW) theory in patients with gastrointestinal tumors after surgery.

By using the convenience sampling method,a total of 95 patients with gastrointestinal tumors who underwent surgical treatment in the gastrointestinal surgery department of a tertiary grade A hospital in Changzhou city from July to September 2024 were selected as the observation group,and 90 patients with gastrointestinal tumors who underwent surgical treatment in the gastrointestinal surgery department from April to June 2024 were selected as the control group.The patients in control group received conventional care based on the guidelines,while the patients in observation group received the postoperative ONS compliance nursing intervention program for gastrointestinal tumor patients based on the BCW theory.The compliance of ONS,the level of ONS knowledge,the changes in nutritional indicators,and the quality of life scores of two groups of patients were compared at the time of discharge,the 4th week after discharge,and the 8th week after discharge.

The generalized estimating equation results showed that the time and group interaction effects of the objective,subjective compliance of ONS,and the knowledge level of ONS,as well as the changes in nutritional indicators between two groups were significant(P<0.05).Simple effect analysis revealed that at the 4th week and the 8th week after discharge,the objective and subjective compliance of ONS,the knowledge level of ONS, as well as the changes in nutritional indicators in the observation group were significantly higher than those in the control group(P<0.05).Repeated measures variance analysis showed that the time and group interaction effects of the quality of life scores were significantly different between two groups(P<0.05).Simple effect analysis indicated that at the 4th week and the 8th weeks after discharge,the quality of life scores in the observation group were significantly better than those in the control group(P<0.05).

The ONS compliance nursing intervention program based on the BCW theory could significantly improve the ONS compliance of patients after gastrointestinal tumor surgery,enhance their ONS knowledge level,and improve their condition of nutrition and quality of life.