Table 1.

Number and Rate of Diagnosed GNB Infections According to Birth Weight Category

Birth Weight Category	No. of Infants Diagnosed With GNB Infection/ No. of Infants Enrolled (%)	No. of Diagnosed GNB Infections/Patient-Days	Rate of Diagnosed GNB Infection/1000 Patient-Days
≥2500 g	56/2760 (2.0)	60/48 446	1.238
1500–2499 g	28/2192 (1.3)	37/46 071	0.803
1000–1499 g	26/685 (3.8)	28/28 801	0.972
<1000 g	78/539 (14.5)	89/41 473	2.146
Total	188/6184 (3.0)	214/164 881	1.298

Abbreviation: GNB, gram-negative bacilli.