Table 2.

Adjusted differences in selected health outcomes comparing Methicillin-resistant Staphylococcus aureus and Methicillin-susceptible Staphylococcus aureus.

Outcome	Estimate (95% CI)- Odds Ratio or Ratio of Geometric LS-Means for MRSA (vs. MSSA-ref) 2	p-value
Length of stay 1, days	1.27 (1.09–1.48)	0.003
Re-admitted ≤60 days (vs. not)	2.21 (0.65–7.56)	0.21
Required PICU admission (vs. none)	1.34 (0.54–3.33)	0.53
Subperiosteal abscess (vs. none)	1.14 (0.60–2.15)	0.69

¹ Length of stay was log-transformed due to non-normality. Estimates are back-transformed geometric least-squares (LS) means. ² Ratio of geometric least-squares means after back-transforming (exponentiation). All models were adjusted for age, race, infection type (osteomyelitis only, septic arthritis only, and both), fever at presentation, WBC, and CRP. Ref: Referent category (MSSA). Bolded values indicate a statistically significant difference with a p-value less than 0.05. MRSA-Methicillin-resistant Staphylococcus aureus, MSSA-Methicillin-sensitive Staphylococcus aureus, PICU-pediatric intensive care unit.