IntroductionApproximately 1% of the world population has now been infected by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19). With cases still rising and vaccines just beginning to rollout, we are still several months away from seeing reductions in daily case numbers, hospitalisations, and mortality. Therefore, there is a still an urgent need to control the disease spread by repurposing existing therapeutics. Owing to antiviral, anti-inflammatory, immunomodulatory, and cardioprotective actions, statin therapy has been considered as a plausible approach to improve COVID-19 outcomes.Material and methodsWe carried out a meta-analysis to investigate the effect of statins on 3 COVID-19 outcomes: intensive care unit (ICU) admission, tracheal intubation, and death. We systematically searched the PubMed, Web of Science, Scopus, and ProQuest databases using keywords related to our aims up to November 2, 2020. All published observational studies and randomised clinical trials on COVID-19 and statins were retrieved. Statistical analysis with random effects modelling was performed using STATA16 software.ResultsThe final selected studies (n = 24 studies; 32,715 patients) showed significant reductions in ICU admission (OR = 0.78, 95% CI: 0.58–1.06; n = 10; I2 = 58.5%) and death (OR = 0.70, 95% CI: 0.55–0.88; n = 21; I2 = 82.5%) outcomes, with no significant effect on tracheal intubation (OR = 0.79; 95% CI: 0.57–1.11; n = 7; I2 = 89.0%). Furthermore, subgroup analysis suggested that death was reduced further by in-hospital application of statins (OR = 0.40, 95% CI: 0.22–0.73, n = 3; I2 = 82.5%), compared with pre-hospital use (OR = 0.77, 95% CI: 0.60–0.98, n = 18; I2 = 81.8%).ConclusionsThese findings call attention to the need for systematic clinical studies to assess both pre- and in-hospital use of statins as a potential means of reducing COVID-19 disease severity, particularly in terms of reduction of ICU admission and total mortality reduction.
Background. Although vaccine rollout for COVID-19 has been effective in some countries, there is still an urgent need to reduce disease transmission and severity. We recently carried out a meta-analysis and found that pre- and in-hospital use of statins may improve COVID-19 mortality outcomes. Here, we provide an updated meta-analysis in an attempt to validate these results and increase the statistical power of these potentially important findings. Methods. The meta-analysis investigated the effect of observational and randomized clinical studies on intensive care unit (ICU) admission, tracheal intubation, and death outcomes in COVID-19 cases involving statin treatment, by searching the scientific literature up to April 23, 2021. Statistical analysis and random effect modeling were performed to assess the combined effects of the updated and previous findings on the outcome measures. Findings. The updated literature search led to the identification of 23 additional studies on statin use in COVID-19 patients. Analysis of the combined studies ( n = 47 ; 3,238,508 subjects) showed no significant effect of statin treatment on ICU admission and all-cause mortality but a significant reduction in tracheal intubation ( OR = 0.73 , 95% CI: 0.54-0.99, p = 0.04 , n = 10 studies). The further analysis showed that death outcomes were significantly reduced in the patients who received statins during hospitalization ( OR = 0.54 , 95% CI: 0.50-0.58, p < 0.001 , n = 7 studies), with no such effect of statin therapy before hospital admission ( OR = 1.06 , 95% CI = 0.82 -1.37, p = 0.670 , n = 29 studies). Conclusion. Taken together, this updated meta-analysis extends and confirms the findings of our previous study, suggesting that in-hospital statin use leads to significant reduction of all-cause mortality in COVID-19 cases. Considering these results, statin therapy during hospitalization, while indicated, should be recommended.
Background and Purpose: Heart failure (HF) is a chronic, debilitating disease, and physical limitations and progressive symptoms of which associated with this condition can reduce quality of life (QOL). Patient education regarding heart HF is one of the main components of self-care. In this respect, peer education is significant in improving health and creating a learning environment. This study was performed to determine the effect of peer education on QOL in HF patients. Methods:In this quasi-experimental study performed during 2016, 60 HF patients affiliated to Tehran University of Medical Sciences were randomly divided into intervention and control groups (n=30). After preparing the peer group, four peer-to-peer training sessions were conducted during one month. The Persian version of Ferrans and Powers' Quality Of Life Questionnaire was used for data collection, which was completed by both groups before, just, and one month after the intervention. SPSS version 21 was employed for data analysis.Results: No significant difference was observed between the two groups in overall QOL score and its domains before the intervention (P=0.31).The mean scores of QOL immediately after the intervention were 126.2±6.7 and 163.1±1.6 in the case and control groups, respectively. The mean scores of QOL one month after the intervention were 134.5±0.7 and 169.9±2.3 in the case and control groups, respectively. After the intervention, paired t-test showed that peer education had a significant relationship with QOL of the HF patients (P<0001). Conclusion:Based on this study, peer education intervention can be a beneficial educative-supportive approach, which might enhance QOL in HF patients.
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