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To describe medication adherence, to analyze the relationships among medication adherence, illness perception, and beliefs about medicines, and to determine the mediating effects of beliefs about medicines on the relationship in breast cancer patients with adjuvant endocrine therapy (AET) in China.A cross-sectional study was conducted on 202 breast cancer patients with AET from September 2017 to February 2019 in China. The Medication Adherence Report Scale (MARS-5), the Chinese version of the revised illness perception questionnaire for Breast Cancer (CIPQ-R-BC) and the Beliefs about Medicines Questionnaire (BMQ) were used.The mean MARS-5 score of our participants was 23.72 (SD = 1.62), and 175 (86.6%) patients were adherent to medications. Moreover, medication adherence was negatively correlated with identity, environmental or immune factors, emotional representations, BMQ-specific concerns, BMQ-general overuse, and BMQ-general harm, as well as being positively correlated with coherence and the total BMQ scores. Furthermore, beliefs in the overuse about medicines functioned as mediators for the influencing effects of coherence and emotional representations on medication adherence.Illness perception not only directly affected medication adherence, but also indirectly affected medication adherence through the beliefs about medicines. Necessary interventions that target beliefs in the overuse about medicines in breast cancer patients with AET with low levels of coherence or high levels of emotional representations could be provided to improve the level of their medication adherence.

Purpose: To assess illness perceptions regarding breast cancer-related lymphedema (BCRL) before discharge following surgery and BCRL risk management behaviors at 3 months postsurgery among Chinese breast cancer patients and to compare the effects of illness perception dimensions and illness perception profiles on predicting BCRL risk management behaviors using two analysis approaches.Methods: A total of 213 breast cancer patients completely participated in this follow-up study. The variable-centered approach (i.e., Pearson correlation analysis) and person-centered approach (i.e., latent profile analysis (LPA) followed by comparison between profiles) were adopted to examine the relationship between illness perception and BCRL risk management behaviors. Multiple linear regression analysis was used to compare the amount of variability in BCRL risk management behaviors explained by illness perception dimensions or illness perception profiles.Results: Using the variable-centered approach, “illness coherence” and “timeline (cyclical)” dimensions were found to be significant components of illness perception predicting BCRL risk management behaviors in the whole population. Using the person-centered approach, LPA identified two profiles and revealed significant differences in BCRL risk management behaviors between them. Overall, illness perception profiles explained smaller amounts of variability in BCRL risk management behaviors than illness perception dimensions at 3 months postsurgery.Conclusions: Based on illness perception regarding BCRL, breast cancer patients were categorized into two profiles. Illness perception dimensions and illness perception profiles showed certain effects on predicting BCRL risk management behaviors. These two methods provided different perspectives on the design and implementation of future interventions addressing maladaptive illness perception regarding BCRL.

To determine the effectiveness of mobile health-based self-management interventions on medical/behavioral, role, and emotional management in breast cancer patients. The Embase, MEDLINE, SINOMED, the Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), WanFang, and Weipu (VIP) databases were extensively searched from inception to November 30, 2020, to identify eligible clinical trials. Outcomes included medical/behavioral management (self-management behavior, functional exercise compliance, self-efficacy, complications, and symptoms), role management (role functioning), and emotional management (anxiety and depression), social support, and health-related quality of life. Twenty-four studies were included in this meta-analysis. The results of the meta-analysis indicated that mobile health-based self-management interventions could potentially improve breast cancer patients’ self-management behavior, functional exercise compliance (WMD = 15.80, 95% CI = 10.53 to 21.08, P

To describe illness perceptions of breast cancer-related lymphedema (BCRL) and adherence to BCRL risk management behaviours and analyse the relationship between these factors in postoperative breast cancer survivors in China.A cross-sectional study was conducted in the first half of 2019 using 281 breast cancer survivors. Participants' illness perceptions and adherence to BCRL risk management behaviours at the 3rd month after surgery were investigated using the Revised Illness Perception Questionnaire for BCRL (IPQ-R [BCRL]), Lymphedema Risk Management Behaviour Questionnaire (LRMBQ), and Functional Exercise Adherence Scale (FEAS). The relationship between these variables was studied using correlation analysis and multiple linear regression analysis.Among the four dimensions of the LRMBQ, the mean score of our respondents received in "skin care" was 3.63 (S.D. 0.67), which was the lowest on the dimension, demonstrating the worst performance in this aspect. Regarding the FEAS results, better functional exercise adherence was observed in our sample compared to previous Chinese research. The results also showed that adherence to BCRL risk management behaviours was related to patient age and degree of education. Furthermore, other dimensions of illness perceptions, such as consequence, timeline acute/chronic, illness coherence and identity, follow their multiple linear regression equations with their corresponding BCRL risk management behaviour adherence.Our findings confirmed the importance of illness perceptions for adherence to BCRL risk management behaviours, suggesting that we need to pay attention to patients' cognition in this respect and supply necessary interventions.