BMC Public Health. 2011 Dec 15;11:934. doi: 10.1186/1471-2458-11-934.
More intervention research is needed, particularly 'real world' intervention replication and dissemination studies, to optimize improvements in health. This study assessed the proportion and type of published public health intervention research papers over time in physical activity and falls prevention, both important contributors to preventable morbidity and mortality.
A keyword search was conducted, using Medline and PsycINFO to locate publications in 1988-1989, 1998-1999, and 2008-2009 for the two topic areas. In stage 1, a random sample of 1200 publications per time period for both topics were categorized as: non-public health, non-data-based public health, or data-based public health. In stage 2 data-based public health articles were further classified as measurement, descriptive, etiological or intervention research. Finally, intervention papers were categorized as: efficacy, intervention replication or dissemination studies. Inter-rater reliability of paper classification was 88%.
Descriptive studies were the most common data-based papers across all time periods (1988-89; 1998-1999;2008-2009) for both issues (physical activity: 47%; 54%; 65% and falls 75%; 64%; 63%), increasing significantly over time for physical activity. The proportion of intervention publications did not increase over time for physical activity comprising 23% across all time periods and fluctuated for falls across the time periods (10%; 21%; 17%). The proportion of intervention articles that were replication studies increased over the three time periods for physical activity (0%; 2%; 11%) and for falls (0%; 22%; 35%). Dissemination studies first appeared in the literature in 2008-2009, making up only 3% of physical activity and 7% of falls intervention studies.
Intervention research studies remain only a modest proportion of all published studies in physical activity and falls prevention; the majority of the intervention studies, are efficacy studies although there is growing evidence of a move towards replication and dissemination studies, which may have greater potential for improving population health.
需要更多的干预研究，特别是“真实世界”的干预复制和传播研究，以优化健康的改善。本研究评估了在体育活动和防跌倒这两个重要的可预防发病率和死亡率的领域中，随着时间的推移，已发表的公共卫生干预研究论文的比例和类型。
使用 Medline 和 PsycINFO 进行了关键词搜索，以定位 1988-1989 年、1998-1999 年和 2008-2009 年这两个主题领域的出版物。在第 1 阶段，对每个时间段的 1200 篇随机样本出版物进行分类：非公共卫生、非基于数据的公共卫生或基于数据的公共卫生。在第 2 阶段，基于数据的公共卫生文章进一步分为测量、描述、病因学或干预研究。最后，将干预论文分为：疗效、干预复制或传播研究。论文分类的组内一致性为 88%。
描述性研究是所有时间段（1988-89 年；1998-1999 年；2008-2009 年）对于这两个问题（体育活动：47%；54%；65%和跌倒：75%；64%；63%）最常见的基于数据的论文，且随着时间的推移，体育活动的描述性研究比例显著增加。体育活动干预出版物的比例在整个时间段内没有增加，占所有时间段的 23%，而跌倒的干预出版物比例在各个时间段内波动（10%；21%；17%）。在三个时间段内，体育活动的干预文章中，复制研究的比例增加（0%；2%；11%），跌倒的比例也增加（0%；22%；35%）。传播研究首次出现在文献中是在 2008-2009 年，仅占体育活动干预研究的 3%和跌倒干预研究的 7%。
干预研究仍然只是体育活动和防跌倒预防已发表研究中的一个适度比例；大多数干预研究是疗效研究，尽管越来越多的证据表明正在向复制和传播研究转变，这可能更有潜力改善人群健康。
