A comprehensive, systematic synthesis was conducted of daily time-series studies of air pollution and mortality from around the world. Estimates of effect sizes were extracted from 109 studies, from single- and multipollutant models, and by cause of death, age, and season. Random effects pooled...

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Purpose: Physical activity has been associated with reduced blood pressure in observational epidemiologic studies and individual clinical trials. This meta-analysis of randomized, controlled trials was conducted to determine the effect of aerobic exercise on blood pressure. Data sources: Engli...

抑郁是老年人一种常见的不良情绪。通过对描述性研究、元分析研究、流行病学研究和实验研究的综述 ,认为体育活动对减轻老年人的抑郁有积极作用

Pulmonary rehabilitation has become an evidence-based treatment for patients with severe chronic obstructive pulmonary disease (COPD). However, large numbers of patients who suffer from mild to moderate COPD receive treatment from their general practitioners (GPs). To encourage compliance, advi...

Background: While there is good evidence to suggest an inverse relation of physical activity and cardiorespiratory fitness with coronary heart disease (CHD) in middle-aged men and women, much less is known about this association in older adults. The purpose of this paper was to explore the rel...

背景：镁摄入量的增加可能会降低血压，但临床试验的证据并不一致，可能是由于样本量小或研究设计的异质性。 方法：我们对随机试验进行了荟萃分析，测试了补充镁对血压的影响。确定了20项符合纳入标准的试验。随机效应模型和元回归方法用于汇集研究结果，并确定镁对BP的剂量-反应关系。 结果：20项研究包括14名高血压患者和6名血压正常的患者，共1220名参与者。镁的剂量范围为10-40mmol/天（中位数为15.4mmol/天）。补充镁只导致血压的总体下降幅度很小。合并后的血压变化净估计值（95%置信区间[Cl]）收缩压为-0.6（-2.2至1.0）mm Hg，舒张压为-0...

Autogenic training (AT) is a self-relaxation procedure by which a psychophysiological determined relaxation response is elicited. A meta-analysis was performed to evaluate the clinical effectiveness of AT. Seventy-three controlled outcome studies were found (published 1952-99). Sixty studies (35 ...

Abstract The purpose of this study was to address the association between dietary protein intake and blood pressure (BP) by combining information from all epidemiological studies that presented quantitative estimates of dietary protein intake and BP assessment. A literature search of MEDLINE, re...

PURPOSE: Milk thistle, an herbal compound, is the dietary supplement taken most frequently by patients with chronic liver disease. We performed a systematic review of the literature to determine the efficacy and safety of this herb for the treatment of liver disease. METHODS: We searched English ...