Univariable Hazard Risk Ratios for ILI Among US Service Members, 18–49 Years of Age, During 2006/2007 and 2008/2009 Influenza Seasons.

<p>Abbreviations: CI, confidence interval; HR, hazard ratio; ILI, influenza-like illness; LAIV, live, attenuated influenza vaccine; TIV, trivalent inactivated influenza vaccine.</p>a<p><i>p</i><0.05.</p

Risk of ILI by Vaccine Type and Health Behavior During Two Influenza Seasons (2006/2007, 2008/2009).

<p>Abbreviations: CI, confidence interval; HR, hazard ratio; ILI, influenza-like illness; LAIV, live, attenuated influenza vaccine; TIV, trivalent inactivated influenza vaccine.</p>a<p>Hazard ratio for each health behavior stratum is evaluated at the average level of other behaviors in the study population and adjusted for all other demographic covariates.</p

Population Characteristics^a Among US Service Members, 18–49 Years of Age, During Two Influenza Seasons (2006/2007, 2008/2009).

<p>Abbreviations: ILI, influenza-like illness; IQR, interquartile range; LAIV, live, attenuated influenza vaccine; TIV, trivalent inactivated influenza vaccine.</p>a<p>Numbers (percentages) for all data except age, which is reported as median (IQR).</p

ICD-9 Codes Used To Identify Influenza-like Illness.

<p>ICD-9 Codes Used To Identify Influenza-like Illness.</p