Table 3.

Factors Associated With Carriage of Multidrug-Resistant Gram-Negative Bacteria in Neonates Admitted to Neonatal Intensive Care Units^a

Characteristic		MDR GN Present [n = 113]	Crude Odds Ratio [95% CI]	P Value	Adjusted Odds Ratio [95% CI]	P Value
Admitting weight (grams)	≥2500	47 [41.6]	1.00
	1500–2499	35 [31.0]	1.06 [0.58–1.93]	.854
	1001–1499	24 [21.2]	1.31 [0.65–2.66]	.448
	≤1000	7 [6.]	4.02 [0.80–20.31]	.092
Duration of stay before sample collection (days)		9.0 [4.0–22.0]	1.10 [1.05–1.14]	<.001	1.04 [1.01–1.07]	.023
Age of mother (years)		29.0 [24.0–35.0]	0.97 [0.93–1.01]	.152
Parity		1.0 [1.0–3.0]	0.83 [0.67–1.03]	.092
Sex	Male	52 [46.0]	0.68 [0.40–1.16]	.159
Type of delivery	Caesarean section	58 [51.3]	0.78 [0.46–1.32]	.350
Type of gestation	Preterm	72 [64.9]	1.51 [0.88–2.60]	0.133
Prolonged PROMb	Yes	9 [10.4]	3.46 [0.72–16.62]	.121
Antibiotic Use	Yes	92 [81.4]	15.00 [7.87–28.57]	<.001	11.08 [5.54–22.15]	<.001

Abbreviations: CI, confidence interval; GN, Gram negative; MDR, multidrug-resistant; PROM, premature rupture of membranes.

^aData are presented as medians with interquartile ranges and n/N (%) where appropriate. Significant variables are presented in bold.

^bStatistical level of significance set at P < .05.