Effects of a spousal participation health promotion program for middle-aged and old men who have undergone percutaneous coronary intervention based on Cox’s Interaction Model: A quasi-experimental study with nonequivalent control group pre- and post-

Spousal participation HPP was an effective intervention for reducing body mass index, total cholesterol, triglyceride, and low-density lipoprotein, enhancing marital harmony, and promoting health behavior compliance among middle-aged and older men who underwent PCI. Therefore, it is recommended to actively utilize the spousal participation HPP as an effective intervention strategy for health management of this population.