Table I.
Patient characteristics by MRSA surveillance culture status
| Incident Cases N=87
|
Non-Cases N=3696
|
||
|---|---|---|---|
| Patient characteristics | N (%) | N (%) | P-value |
| Female | 39 (45) | 1647 (45) | 1.00 |
|
| |||
| Race | |||
| Asian | 0 (0) | 108 (3) | |
| Black or African-American | 46 (53) | 1665 (45) | |
| White | 33 (38) | 1499 (41) | |
| Other/Unknown | 8 (9) | 424 (11) | 0.26b |
|
| |||
| Ethnicity | |||
| Hispanic | 5 (6) | 184 (5) | |
| Non-Hispanic | 79 (91) | 3312 (90) | |
| Unknown | 3 (3) | 200 (5) | 0.76b |
|
| |||
| Length of NICU stay, median (IQR)a | 19 days (10–43) | 15 days (8–30) | 0.04c |
|
| |||
| Inborn | 43 (49) | 2497 (68) | p<0.001 |
|
| |||
| Mortality | 4 (5) | 91 (2) | 0.17 |
|
| |||
| Unit hand hygiene complianced, median (IQR) | 80% (64–88) | 83% (64–93) | 0.04c |
Incident MRSA-positive refers to surveillance MRSA-positive neonates that met incident colonization case definition (study outcome). MRSA-negative neonates (non-cases) had negative surveillance cultures for MRSA while under observation. Neonates remained under observation until discharge or positive MRSA-culture.
a
Length of NICU stay includes only pre-colonization length of stay for incident cases.
b
P values obtained from Fisher’s Exact Test,
c
P values obtained from Wilcoxon Rank Sum test.
d
Unit hand hygiene during month of admission was compared for cases versus non-cases.
Abbreviations: IQR, Interquartile range.