Antivirals and antibiotics for influenza in the United States, 1995-2002

被引:31
作者
Linder, JA
Bates, DW
Platt, R
机构
[1] Brigham & Womens Hosp, Div Gen Med, Boston, MA 02120 USA
[2] Harvard Univ, Sch Med, Dept Ambulatory Care & Prevent, Boston, MA USA
关键词
influenza; anti-bacterial agents; antiviral agents; prescriptions; drug; physicians' practice patterns;
D O I
10.1002/pds.1067
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Purpose To measure the rates of antiviral and antibiotic prescribing for patients diagnosed with influenza in the United States. Methods We performed a retrospective analysis of visits to ambulatory clinics and emergency departments in the National Ambulatory Medical Care Survey (NAMCS) and the National Hospital Ambulatory Medical Care Survey (NHAMCS) with a diagnosis of influenza that occurred in seven influenza seasons between 1 October 1995 and 31 May 2002 (n = 1216). Results There were an estimated 22 million visits (95%CI, 17-26 million visits) with a diagnosis of influenza to community ambulatory clinics (88% of visits), hospital ambulatory clinics (3%) and emergency departments (9%) in the United States between the 1995-1996 and the 2001-2002 influenza seasons, inclusive. The sample was 63% adults, 44% male and 84% white. Physicians prescribed antivirals in 19% of visits and antibiotics not associated with an antibiotic-appropriate diagnosis in 26% of visits. In multivariable modeling, independent predictors of antiviral prescribing were adult age (OR, 2.1; 95%CI, 1.1-4.0) and Medicare insurance (OR, 0.1 compared to private insurance; 95%CI, 0.0-0.6). Antiviral prescribing was marginally associated with influenza season (OR, 1.2 per influenza season; 95%CI, 1.0-1.4). Independent predictors of antibiotic prescribing were influenza season (OR, 0.8 per influenza season; 95%CI, 0.7-0.9), male sex (OR, 0.6; 95%CI, 0.4-0.9), adult age (OR, 2.3; 95%CI, 1.2-4.2) and emergency department visits (OR, 0.5 compared to community ambulatory visits; 95%CI, 0.3-0.8). Conclusions Physicians prescribed antiviral medications to 19% of patients they diagnosed with influenza; the proportion that would have been clinically appropriate is unknown. In contrast, physicians prescribed apparently inappropriate antibiotics to 26% of these same patients, a rate that, encouragingly, decreased over time. Copyright (c) 2005 John Wiley & Sons, Ltd.
引用
收藏
页码:531 / 536
页数:6
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