Cancer Genetics and Epigenetics, 2025, Vol.13, No.5, 245-253 http://medscipublisher.com/index.php/cge 247 3 Research Objects and Methods 3.1 Inclusion and exclusion criteria, sample characteristics Nursing research on the recovery of social function in young breast cancer patients after surgery generally selects patients aged 18 and above who have just been diagnosed with stage I-III breast cancer. These patients need to undergo surgery and cooperate with subsequent treatment. Exclusion criteria typically include other malignant tumors, infections, or diseases that may affect participation in the study and outcome evaluation, such as cognitive or mental disorders (Zhou et al., 2020; Wang et al., 2023). These standards can make the research subjects more consistent, thereby better focusing on the patients who are most likely to benefit from nursing interventions (Lou and Xu, 2024). Recent research sample characteristics show that women are dominant in early to middle adulthood, and the majority of participants come from the surgery or oncology departments of general hospitals. Randomized controlled trials and quasi-experimental designs are usually adopted, with sample sizes ranging from 60 to over 200 people (Yang and Wang, 2025). Baseline assessment confirmed the comparability of the intervention group and the control group in terms of age, disease stage and psychosocial status (Wu et al., 2020; Zhou et al., 2020). 3.2 Nursing content, implementation methods, and procedures Nursing intervention measures for such patients are increasingly adopting a combination of multiple approaches, combining routine care with additional support - the additional support is either provided through digital platforms (such as wechat, mobile applications) or face-to-face projects with fixed procedures (Wang et al., 2023; Liu et al. 2024). The nursing content usually includes health knowledge explanation, psychological counseling, symptom management, self-care training and strengthening social support. Some intervention measures have also incorporated new elements such as narrative care, gratitude activities and mind mapping to meet the emotional and practical needs of patients (Fan et al., 2021; Xie et al., 2024). The implementation methods of intervention measures vary, but generally include regular follow-up, group communication and personalized care plans, ranging from a few weeks to six months (Zhou et al., 2020). These plans may include pre-discharge lectures, online sign-in after discharge, and continuous assessment of physical, psychological and social conditions. Nurse-led intervention is the main content. Nurses are responsible for providing guidance, tracking rehabilitation progress, and promoting communication among patients, their families, and the medical team (Wu et al., 2020; Aydin and Gursoy, 2024). 3.3 Social function recovery indicators and data analysis methods Appropriate tools are needed to assess the recovery of social functioning, such as Cancer Treatment - Breast Function Assessment (FACT-B), which measures health-related quality of life from aspects such as physical, emotional, social/family, and daily functioning (Wang et al., 2023). Other commonly used assessment tools include anxiety and depression scales (such as HAMA, HAMD, SAS, SDS), self-care ability scales, and tools specifically designed to measure body image, relapse concerns, and post-traumatic growth (Aljabri, 2024; Huang et al., 2024). These multi-angle assessment methods can more comprehensively reflect the complexity of the rehabilitation process and the effect of nursing intervention. Data analysis methods typically include repeated measures analysis of variance (ANOVA for short), which is used to assess changes between different time periods and different groups. There are also t-tests and chi-square tests to compare the situations of different groups (Wu et al., 2020; Zhou et al., 2020). Sometimes, multi-level modeling and regression analysis are also used to study the factors influencing the intervention effect and control the variables that may interfere with the outcome. These reliable statistical methods can ensure the credibility and clinical significance of the research results (Wang et al., 2021; Aydin and Gursoy, 2024). 4 Case Analysis 4.1 Basic information of the patient and initial social functional status A typical case involves a 32-year-old young woman who was newly diagnosed with stage II breast cancer and underwent surgery. Upon admission, she had obvious physical symptoms such as pain and fatigue, accompanied
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