Validation of the Patient Empowerment Strategies Questionnaire (PES-Q) in Greek adult patients with chronic insomnia: a pilot study on basic psychometric values.

AIM: The objectives of this study were to validate the Patient Empowerment Strategies Questionnaire (PES-Q) in a Greek sample and to study its psychometric properties in a sample of patients diagnosed with chronic insomnia. BACKGROUND: This is a validation of the PES-Q in Attikon General Hospital, School of Medicine, National and Kapodistrian University of Athens. The questionnaire was administered to 93 subjects aged between 18 and 85 years (mean age ± SD: 54.7 ± 15.2, 28% males). METHODS: The criterion validity of the questionnaire was tested with the use of four specific criteria: the Athens Insomnia Scale, the Pittsburg questionnaire (Pittsburg Sleep Quality Index), the Depression, Anxiety and Stress Scale, and the Self-Esteem Scale. FINDINGS: According to factor analysis results, the structure of the original scale was confirmed by the presence of one main factor in the Greek sample, explaining 40.1% of the variance of PES-Q queries. The questionnaire showed satisfactory reliability (Cronbach's α = 0.887). The results of the current study suggest that the PES-Q may be used as an accurate psychometric instrument for the purposes of chronic insomnia. Future research should examine the psychometric qualities of the PES-Q Greek version in a larger sample.

Investigating the Effects of the Progressive Muscle Relaxation-Guided Imagery Combination on Patients with Cancer Receiving Chemotherapy Treatment: A Systematic Review of Randomized Controlled Trials.

BACKGROUND: Previous systematic reviews indicate that progressive muscle relaxation (PMR) and guided imagery (GI) are both effective interventions to decrease the psychological impact and to alleviate the adverse events in cancer patients undergoing chemotherapy treatment. To date, no review studies have investigated the effectiveness of a combination of PMR and GI. AIM: To systematically review the current state of knowledge regarding the effects of the PMR-GI combination on cancer patients receiving chemotherapy. METHODS: A search for relevant records was carried out in four electronic databases (AMED, Cochrane Library, Pubmed and Scopus). After removing the duplicates 342 publications were screened and 71 were considered as potentially relevant. The flow of information of this study was in line with the PRISMA statement. Original articles investigating the application of both PMR and GI through a randomized trial on patients receiving chemotherapy were included. Those using PMR or GI alone and those combining other techniques together with PMR and GI were excluded. The trials' quality was assessed using the Jadad Scale. RESULTS: Eight papers reporting the results of seven independent trials were finally included. All of them included only breast cancer patients, apart from a single trial using a mixed sample of breast and prostate cancer patients. Seven of the included trials reported beneficial effects on mental state (mood, anxiety, and depression) and on toxicity (nausea and vomiting). Three trials reported an effect on biomarkers (heart rate, blood pressure, cortisol, and immunity). Four trials scored three of five points on the Jadad Scale, two trials scored two points and a single trial scored zero. CONCLUSIONS: Independent trials indicate that the PMR-GI combination is an effective way to tackle the impact of nausea and vomiting and to improve patients' mental state. However, studies involving other types of primary tumors would be useful because seven of the eight clinical trials only included breast cancer patients. Future research on the identification of potential effects on disease-related parameters (e.g., cytokines and disease-recurrence) and on patient survival is highly needed.