The first author initially identified and reviewed citation on title and abstract. A second author independently reviewed and evaluated the papers selected for inclusion. We extracted the **data** related to author/s, year of publication, country, aim of the study, design and methods, sample and setting, key findings and evaluated the quality of the study (Table 1). Research studies which met the inclusion criteria were assessed for quality using the standard quality assessment criteria of Joanna Briggs Institute dependent on study design [21]. Quantitative studies were evaluated for the quality of: sample recruitment procedure, representativeness and sufficient sample size, inclusion criteria, connection between theoretical framework and hypothesis, instruments validity and reliability, ability to compare groups, suitable statistical **data** analysis, and generalizability of results. On the other hand, qualitative research studies were evaluated on: methodological congruency with the indicated philosophical view, study question, **data** collection procedures, **data** analysis methods, results interpretation, ethical consideration of study process and the basis of existing conclusion.