Search

The ageing population has been rapidly growing over recent years. Theoretically, religion seemingly plays an important role in improving older people's health. This study examines whether believing in religion is related to better health conditions among Chinese older adults through a meta-analysis. Two researchers independently extracted the studies from a comprehensive database and grey literature search and evaluated their scientific quality. From the 3,777 potentially eligible papers, just 76 were selected. The pooled effect size detected no significant difference between Chinese religious and non-religious older adults' overall health and wellbeing. Dividing the outcomes into different categories, religious older adults reported both a higher level of anxiety (Hedge's g = −0.392, 95% confidence interval (CI) = −0.494, −0.290; p = 0.004) and yet a higher level of happiness (Hedge's g = 0.342, 95% CI = 0.074, 0.610; p = 0.018). Having a higher proportion of females in the sample is related to a smaller effect size in overall health outcomes (β = −2.205, 95% CI = −3.800, −0.613; p = 0.007) and social support specifically (β = −4.660, 95% CI = −6.261, −3.058; p < 0.0001). This study is among the first to synthesise the quantitative evidence regarding health differences between older religion believers and non-believers in China. It calls for future studies investigating the pathways underlying the religion–health relationship. [ABSTRACT FROM AUTHOR]

Accumulating evidence suggests that supplementation of n -3 PUFA was associated with reduction in risk of major cardiovascular events. This meta-analysis was to systematically evaluate whether daily supplementation and accumulated intake of n -3 PUFA are associated with improved left ventricular (LV) remodelling in patients with chronic heart failure (CHF). Articles were obtained from Pubmed, Clinical key and Web of Science from inception to January 1 in 2021, and a total of twelve trials involving 2162 participants were eligible for inclusion. The sources of study heterogeneity were explained by I 2 statistic and subgroup analysis. Compared with placebo groups, n -3 PUFA supplementation improved LV ejection fraction (LVEF) (eleven trials, 2112 participants, weighted mean difference (WMD) = 2·52, 95 % CI 1·25, 3·80, I 2 = 87·8 %) and decreased LV end systolic volume (five studies, 905 participants, WMD = –3·22, 95 % CI 3·67, −2·77, I 2 = 0·0 %) using the continuous variables analysis. Notably, the high accumulated n -3 PUFA dosage groups (≥ 600 g) presented a prominent improvement in LVEF, while the low and middle accumulated dosage (≤ 300 and 300–600 g) showed no effects on LVEF. In addition, n -3 PUFA supplementation decreased the levels of pro-inflammatory mediators including TNF- α , IL-6 (IL-6) and hypersensitive c-reactive protein. Therefore, the present meta-analysis demonstrated that n -3 PUFA consumption was associated with a substantial improvement of LV function and remodelling in patients subjected to CHF. The accumulated dosage of n -3 PUFA intake is vital for its cardiac protective role. [ABSTRACT FROM AUTHOR]