To the editor [2]

New England Journal of Medicine

Volumn 357, Issue 26, 2007, Pages 2728-2729

  Nelson, Jennifer C ^a   Jackson, Michael L ^a   Jackson, Lisa A ^a  

^a CENTER FOR HEALTH STUDIES   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

INFLUENZA VACCINE;

DEATH; HOSPITALIZATION; HUMAN; INFLUENZA; INFLUENZA VACCINATION; LETTER; PNEUMONIA; PRIORITY JOURNAL;

EID: 37549067792     PISSN: 00284793     EISSN: 15334406     Source Type: Journal    
DOI: 10.1056/NEJMc073068     Document Type: Letter

References (4)

1. Jackson LA, Jackson ML, Nelson JC, Neuzil KM, Weiss NS. Evidence of bias in estimates of influenza vaccine effectiveness in seniors. Int J Epidemiol 2006;35:337-44.
2. Walter LC, Brand RJ, Counsell SR, et al. Development and validation of a prognostic index for 1-year mortality in older adults after hospitalization. JAMA 2001;285:2987-94.
3. Jackson LA, Nelson JC, Benson P, et al. Functional status is a confounder of the association of influenza vaccine and risk of all cause mortality in seniors. Int J Epidemiol 2006;35:345-52.
4. Fewell Z, Davey Smith G, Sterne JAC. The impact of residual and unmeasured confounding in epidemiologic studies: a simulation study. Am J Epidemiol 2007;166:646-55.