TABLE 1.
Rates of SA B/M Among VLBW Infants Who Survived >3 Days, Overall and by BW: NICHD NRN 2006–2008
| Infants With SA B/M Onlya | Infants With Both SA and Non-SA B/Ma | Infants With MRSA B/Ma | Infants With MSSA B/Ma | Total Infants or HDsa,b | |
|---|---|---|---|---|---|
| Overall | |||||
| N infants with B/M (%) | 173 (2.0) | 143 (1.7) | 88 (1.0) | 228 (2.7) | 8444 |
| Infants infected/1000 HDsc | 0.29 | 0.24 | 0.15 | 0.38 | 596 442 |
| BW 401–750 g | |||||
| N infants with B/M (%) | 76 (4.1) | 63 (3.4) | 39 (2.1) | 100 (5.4) | 1854 |
| Infants infected/1000 HDs | 0.44 | 0.37 | 0.23 | 0.58 | 172 038 |
| BW 751–1000 g | |||||
| N infants with B/M (%) | 50 (2.2) | 53 (2.3) | 33 (1.4) | 70 (3.1) | 2295 |
| Infants infected/1000 HDs | 0.26 | 0.27 | 0.17 | 0.36 | 193 136 |
| BW 1001–1250 g | |||||
| N infants with B/M (%) | 36 (1.7) | 19 (0.9) | 8 (0.4) | 47 (2.2) | 2122 |
| Infants infected/1000 HDs | 0.27 | 0.14 | 0.06 | 0.35 | 133 724 |
| BW 1251–1500 g | |||||
| N infants with B/M (%) | 11 (0.5) | 8 (0.4) | 8 (0.4) | 11 (0.5) | 2173 |
| Infants infected/1000 HDs | 0.11 | 0.08 | 0.08 | 0.11 | 97 544 |
a
Numbers of infants infected and total HDs are listed to facilitate calculation of additional rates.
b
HD, hospital day.
c
Rates of SA are listed per 1000 HDs.