نیما معتمد

Introduction: Quality of life (QOL) in cancer patients is more important than only being alive. In all types of the cancers because of disease, course of treatment and also complication of treatments, directly and indirectly patients’ QOL will change. So finding a way to improve QOL of cancer patients is one of the priority of our health system. One effective way is improvement of sense of coherence (SOC) which is one of the component of salthogenic medicine. In this research we want to know how much influence SOC has on QOL in cancer patients, in a systematic review. Methods and material: We aimed to do a systematic review so in our literature search strategy, we searched in some databases, such as pubmed, scopus, cochrane, web of science and Embase. Then appropriate studies in title, inclusion and exclusion criteria, were selected and their mark in Critical Appraisal Skills Program (CASP) criteria. 8 studies remained for us for our study. Then we extract the data and synthesis the results. Results: In this review, in most of the studies there was a strong association between SOC and QOL, but some confounders such as age, stage of cancer,… can increase or decrease the degree of this association. The differences between the kinds of questions in different questionnaires maybe made these differences. Conclusion: Taken together, there is a moderate correlation between SOC and QOL and some another factors can have effect on both of our variables .SOC can change cross sectional, so, we should do more research to find the factors that can improve the SOC in cancer patients.