Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Am J Public Health. 2012 Oct;102(10):e21-6. doi: 10.2105/AJPH.2012.300651. Epub 2012 Aug 16.
The purpose of our study was to more accurately characterize people reporting influenza-like illness (ILI) and evaluate trends in health care seeking and influenza diagnosis and treatment during the 2009 influenza pandemic.
From September 2009 to March 2010, we ascertained ILI (fever with cough or sore throat), health care seeking, and clinical diagnosis and treatment of influenza with influenza antiviral drugs among adults in 51 jurisdictions, and ILI and health care seeking among children in 41 jurisdictions.
Among 216,431 adults and 43,511 children, 8.1% and 28.4% reported ILI, respectively. ILI peaked during November interviews and was higher among young people and American Indian/Alaska Natives. Of those with ILI, 40% of adults and 56% of children reported seeking health care; 26% of adults who sought care reported receiving a diagnosis of influenza. Of adults reporting an influenza diagnosis, 36% were treated with influenza antiviral drugs; treatment was highest among adults aged 18 to 49 years.
Analysis of ILI data from the Behavioral Risk Factor Surveillance System enabled a better understanding of the factors associated with self-reported ILI, health care seeking, and clinical influenza diagnosis and treatment, and will help inform year-to-year influenza trends.
我们研究的目的是更准确地描述报告流感样疾病（ILI）的人群，并评估 2009 年流感大流行期间寻求医疗保健和流感诊断及治疗的趋势。
从 2009 年 9 月到 2010 年 3 月，我们在 51 个司法管辖区确定了成年人的 ILI（发热伴咳嗽或喉咙痛）、寻求医疗保健以及临床诊断和治疗流感以及使用流感抗病毒药物的情况，在 41 个司法管辖区确定了儿童的 ILI 和寻求医疗保健的情况。
在 216431 名成年人和 43511 名儿童中，分别有 8.1%和 28.4%报告了 ILI。ILI 在 11 月的访谈中达到高峰，年轻人和美洲印第安人/阿拉斯加原住民的发病率更高。在有 ILI 的人中，40%的成年人和 56%的儿童报告寻求医疗保健；寻求医疗保健的成年人中有 26%报告被诊断患有流感。在报告流感诊断的成年人中，有 36%接受了流感抗病毒药物治疗；18 至 49 岁的成年人治疗率最高。
对行为风险因素监测系统中 ILI 数据的分析使我们更好地了解与自我报告的 ILI、寻求医疗保健以及临床流感诊断和治疗相关的因素，这将有助于了解每年的流感趋势。
