Burden of Mild Outcomes Due to Influenza in the United States, July 2000 Through April 2009 and October 2010 to May 2011
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 1
- 试验地点
- 1
- 主要终点
- Weekly occurrences of potentially influenza-attributable physician's office visits by age, region and season.
研究概览
简要总结
This is a database study to quantify the burden of multiple mild outcomes (i.e., those that result in visits to a physician's office) attributable to influenza in the United States, stratified by age group, geographic region and influenza subtype for selected influenza seasons.
详细描述
This is a retrospective database study to quantify the burden of multiple mild pre-defined influenza-attributable outcomes of interest, which resulted in physician office visits for persons who were less than 65 years of age, in the United States in the relevant Marketscan Commercial database in the period from July 2000 through April 2009, and October 2010 to May 2011. The corresponding physician office visits for persons 65 years of age and older, with a mild influenza-attributable outcome of interest, in the United States that were recorded in the relevant MarketScan Medicare Supplemental database in the period from July 2006 through April 2009, and October 2010 to May 2011 were also investigated. The period from April 2009 through September 2010 is excluded to avoid the H1N1 pandemic wave.
研究设计
- 研究类型
- Observational
- 时间视角
- Retrospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Recorded in a Marketscan database with any of the specified diagnostic codes.
排除标准
- •Missing data in any of the following fields: age, diagnosis, region or visit date.
结局指标
主要结局
Weekly occurrences of potentially influenza-attributable physician's office visits by age, region and season.
时间窗: Up to 10 years approximately (Marketscan Commercial Database) and up to 6 years approximately (Marketscan Medicare Supplemental Database).
- All the events contained within "potentially influenza-attributable" office visits. - Weekly proportion of circulating influenza A and B strains determined for each season.
次要结局
- Assessment of Influenza vaccine content and effectiveness by season.(Up to 10 years approximately (Marketscan Commercial Database) and up to 6 years approximately (Marketscan Medicare Supplemental Database).)
- Assessment of Influenza vaccine coverage by season and region.(Up to 10 years approximately (Marketscan Commercial Database) and up to 6 years approximately (Marketscan Medicare Supplemental Database).)
- Assessment of Influenza B vaccine mismatch (by region and season).(Up to 10 years approximately (Marketscan Commercial Database) and up to 6 years approximately (Marketscan Medicare Supplemental Database).)