Harris Alex H S
Center for Health Care EvaluationU.S. Department of Veterans Affairs Health Care System, Palo Alto, CA 94025, USA.
J Consult Clin Psychol. 2006 Apr;74(2):243-52. doi: 10.1037/0022-006X.74.2.243.
This meta-analysis examined whether writing about stressful experiences affects health care utilization (HCU) compared with writing on neutral topics or no-writing control groups. Randomized controlled trials of 30 independent samples representing 2,294 participants were located that contained sufficient information to calculate effect sizes. After omitting one study as an outlier, the effects were combined within 3 homogeneous groups: healthy samples (13 studies), samples with preexisting medical conditions (6 studies), and samples prescreened for psychological criteria (10 studies). Combined effect sizes, Hedges's g (95% confidence interval), with random effects estimation were 0.16 (0.02, 0.31), 0.21 (-0.02, 0.43), and 0.06 (-0.12, 0.24), respectively. Writing about stressful experiences reduces HCU in healthy samples but not in samples defined by medical diagnoses or exposure to stress or other psychological factors. The significance of these effects for individuals' health is unknown.
本荟萃分析探讨了与撰写中性话题或无写作对照组相比，撰写压力性经历是否会影响医疗保健利用（HCU）。研究找到了30个独立样本的随机对照试验，涉及2294名参与者，这些试验包含足够信息以计算效应量。在剔除一项作为离群值的研究后，效应在3个同质组中合并：健康样本（13项研究）、已有医疗状况的样本（6项研究）以及根据心理标准预先筛选的样本（10项研究）。采用随机效应估计的合并效应量、Hedges's g（95%置信区间）分别为0.16（0.02，0.31）、0.21（-0.02，0.43）和0.06（-0.12，0.24）。撰写压力性经历可降低健康样本中的医疗保健利用，但在由医学诊断或暴露于压力或其他心理因素定义的样本中则不然。这些效应对个体健康的意义尚不清楚。
