Volume 22, Number 7—July 2016
Dispatch
Increased Mortality Rates Associated with Staphylococcus aureus and Influenza Co-infection, Maryland and Iowa, USA1
Table 2
Adjusted regression analysis of the association between influenza and 30-d in-hospital deaths among patients with Staphylococcus aureus–positive respiratory cultures, Maryland and Iowa, USA*
Model and variable | Odds ratio (95% CI) | p value |
---|---|---|
Unadjusted | ||
Influenza-positive test |
3.15 (1.27–7.86) |
0.021 |
Adjusted† | ||
Influenza-positive test | 4.31 (1.57–11.83) | 0.005 |
First positive S. aureus culture collected ≤2 d after hospital admission | 3.00 (1.18–7.61) | 0.021 |
Year of first positive S. aureus culture, 2008–2009† | 1.71 (0.70–4.13) | 0.237 |
*Defined as death occurring in the hospital within 30 d of the first respiratory culture that grew S. aureus.
†Reference 2003–2007.
1Presented in part at ID Week, October 17-21, 2012, San Diego, CA, USA. Abstract 36846.
2Current affiliation: Infectious Disease Specialists, P.C., Sioux Falls, South Dakota, USA.