Table 2.
Incidences of Staphylococcus aureus infection per 1000 admissions in 33 US children’s hospitals during the period from 1 January 2002 through 31 December 2007, by year and type of infection.
| S. aureus infection | MRSA infection | MSSA infection | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Type of infection | 2002 | 2007 | P | 2002 | 2007 | P | 2002 | 2007 | P |
| All | 20.8 | 35.8 | .02 | 6.7 | 21.1 | .02 | 14.1 | 14.7 | .85 |
| Abscess and cellulitis | 5.9 | 15.9 | .03 | 2.2 | 10.5 | .03 | 3.4 | 5.3 | .09 |
| Osteomyelitis | 1.3 | 2.5 | .03 | 0.3 | 1.4 | .03 | 1.0 | 1.1 | .76 |
| Bacteremia | 1.4 | 2.2 | .04 | 0.4 | 1.0 | .04 | 1.0 | 1.2 | .56 |
| Pneumonia | 2.9 | 3.4 | .09 | 0.9 | 1.9 | .03 | 2.0 | 1.5 | .09 |
NOTE. P value for trend over time; MRSA, methicillin-resistant S. aureus; MSSA, methicillin-susceptible S. aureus.