ADHD prevalence estimates across three decades: an updated systematic review and meta-regression analysis
ADHD prevalence estimates across three decades: an updated systematic review and meta-regression analysis
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DOI：
10.1093/ije/dyt261
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发表时间：
2014-04-01
影响因子：
7.7
通讯作者：
Rohde, Luis A.
中科院分区：
文献类型：
--
作者：
Polanczyk, Guilherme V.;GWillcutt, Erik;Rohde, Luis A.
背景：以前的研究已经发现，在世界范围内，注意力缺陷/多动障碍(ADHD)患病率估计值存在显著差异，这主要是由方法学程序解释的。然而，在过去的几十年里，ADHD诊断和治疗的比率不断上升，这引发了人们对该疾病的真实患病率是否随着时间的推移而增加的担忧。方法：我们更新了文献中关于ADHD患病率的两个最全面的系统评价。通过Meta回归分析来检验研究年份对ADHD患病率变异性(诊断标准、损伤标准和信息来源)的影响，以及研究的地理位置。结果：我们确定了154项原始研究，其中135项进入了多变量分析。研究的方法学程序与研究的异质性显著相关。地理位置和研究年份与ADHD患病率估计的变异性无关。结论：ADHD患病率估计的变异性主要是由研究的方法学特征来解释的，这证实了先前的研究结果。在过去的三十年里，没有证据表明，当遵循标准化的诊断程序时，社区中符合ADHD标准的儿童数量有所增加。
Background: Previous studies have identified significant variability in attention-deficit / hyperactivity disorder (ADHD) prevalence estimates worldwide, largely explained by methodological procedures. However, increasing rates of ADHD diagnosis and treatment throughout the past few decades have fuelled concerns about whether the true prevalence of the disorder has increased over time.Methods: We updated the two most comprehensive systematic reviews on ADHD prevalence available in the literature. Meta-regression analyses were conducted to test the effect of year of study in the context of both methodological variables that determined variability in ADHD prevalence (diagnostic criteria, impairment criterion and source of information), and the geographical location of studies.Results: We identified 154 original studies and included 135 in the multivariate analysis. Methodological procedures investigated were significantly associated with heterogeneity of studies. Geographical location and year of study were not associated with variability in ADHD prevalence estimates.Conclusions: Confirming previous findings, variability in ADHD prevalence estimates is mostly explained by methodological characteristics of the studies. In the past three decades, there has been no evidence to suggest an increase in the number of children in the community who meet criteria for ADHD when standardized diagnostic procedures are followed.