Volume 17, Number 6—June 2011
Dispatch
Internet Queries and Methicillin-Resistant Staphylococcus aureus Surveillance
Vanja M. Dukic, Michael Z. David, and Diane S. Lauderdale
Table
Multiple regression results for model relating UHC MRSA hospitalization rates per 1,000 hospitalizations to Google searches for “MRSA” or “staph” (normalized and scaled)*
| Characteristic | Coefficient | 95% CI | SE | t value | p>t |
|---|---|---|---|---|---|
| Intercept | 9.03 | 7.56 to 10.50 | 0.69 | 13.07 | <0.001 |
| Google searches | 0.25 | 0.18 to 0.32 | 0.032 | 7.73 | <0.001 |
| 2007 4th quarter indicator | −21.45 | −28.10 to −14.80 | 3.12 | −6.87 | 0.001 |
| 2008 indicator | −3.06 | −4.55 to −1.57 | 0.70 | −4.37 | <0.001 |
*UHC, University HealthSystems Consortium; MRSA, methicillin-resistant Staphylococcus aureus; CI, confidence interval. The overall model F(3,15) was 29.69 (p<0.0001), R2 0.8559, and adjusted R2 0.8270. Correlation coefficient between predicted values of this model and observed rates was 0.9251.
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