Table 2. Risk of staphylococcal infection, by demographic characteristic, for children, California, 1985–2009*.
| Demographic characteristics | Risk of infection, OR† (95% CI) |
|
|---|---|---|
| General population of children | Hospitalized children | |
| Sex | ||
| M | 1.25 (1.23–1.26) | 1.07 (1.06–1.09) |
| F |
Reference |
Reference |
| Race | ||
| White | Reference | Reference |
| Black | 1.46 (1.43–1.49) | 1.05 (1.04–1.07) |
| Hispanic | 0.94 (0.93–0.95) | 0.96 (0.95–0.97) |
| Asian |
0.63 (0.62–0.65) |
Dropped |
| Age at admission | ||
| <30 d | 5.64 (5.55–5.73)‡ | 0.39 (0.39–0.40) |
| 31–91 d | 0.95 (0.92–0.97) | |
| 92–365 d | 0.98 (0.96–1.00) | |
| 1–2 y | Reference | Reference |
| 3–5 y | 0.42 (0.41–0.43) | 0.80 (0.78–0.81) |
| 6–9 y | 0.31 (0.31–0.32) | 0.81 (0.79–0.92) |
| 10–13 y | 0.34 (0.33–0.35) | 0.90 (0.88–0.92) |
| 14–17 y |
0.48 (0.47–0.49) |
0.76 (0.74–0.77) |
| Expected source of payment | ||
| Private insurance | NA | 0.78 (0.77–0.79) |
| Other§ | NA | Reference |
*OR, odds ratio; NA, not applicable. †ORs were calculated by using backward logistic regression (stay criteria p<0.01) with the variables listed in the table and year of admission. ‡Combined value for all children <1 year of age. §Medi-Cal, Medicare, other government sources, charity, and none.