TABLE 1.
Key characteristics of S. aureus-infected patients admitted to HUCFF from September 1999 to June 2000
| Variable | Value of variable for patients with:
|
Pa | ||
|---|---|---|---|---|
| MRSA | MSSA
|
|||
| CAIb | HAIc | |||
| Categorical variables, n (%) | ||||
| Sex (male) | 21 (66) | 7 (54) | 26 (62) | 0.6 |
| Infection | ||||
| Bloodstream | 9 (28) | 2 (15) | 20 (48) | 0.3 |
| Respiratory | 10 (31) | 1 (8) | 7 (33) | 0.06 |
| Surgical site | 3 (9) | 0 (0) | 5 (21) | 0.8 |
| Skin and soft tissue | 2 (6) | 4 (31) | 3 (7) | 0.6 |
| Otherd | 8 (29) | 6 (46) | 7 (17) | 0.6 |
| Outcome | ||||
| Discharge | 20 (62) | 8 (61) | 32 (76) | 0.3 |
| Death | 12 (37) | 3 (23) | 12 (28) | 0.45 |
| Related death | 5 (15) | 0 | 0 | |
| Numerical variables, median (SDe) | ||||
| Age (yr) | 54.2 (20.5) | 38.9 (22.8) | 49.3 (17.5) | 0.09 |
| Duration of hospitalization (days) | 43.8 (42.0) | 22.5 (19.2) | 22.8 (17.5) | 0.01 |
| Time to S. aureus isolationf (days) | 16.6 (22.4) | NAh | 6.8 (12.9) | 0.02 |
| Disease timeg (days) | 35.9 (37.3) | 24.1 (18.3) | 13.6 (49.3) | 0.15 |
a
Comparison between MRSA-infected (n = 32) and MSSA-infected (n = 55) patients.
b
Community-acquired infections (n = 13) (infections diagnosed within 48 h of admission and not related to any hospital procedure).
c
Hospital-associated infections (n = 42) (defined according to published criteria [12]), including infections diagnosed in patients undergoing hemodialysis.
d
Includes catheter-associated, bone and joint, deep-seated, and urinary tract infections.
e
SD, standard deviation.
f
Values calculated for hospital-associated infections only.
g
Time from S. aureus isolation to discharge (excluding death).
h
NA, not applicable.