Table 4.

Perinatal risk factors for infection with coagulase-negative staphylococci.

Risk factor	With infection		Without infection		Total		P value
	N	%	N	%	N	%
Membrane rupture >24 h	19	35.2	10	19.6	29	27.6	0.036
ICU inpatient	52	96.2	39	76.5	91	86.6	ns
Catheter	27	50.0	27	52.9	54	51.4	ns
Catheter complications	11	20.4	1	1.9	12	11.4	<0.001
Drain	8	14.8	2	2.9	10	9.5	0.025
Mechanical ventilation	31	57.4	23	45.0	54	51.4	ns
Parenteral nutrition	33	61.1	28	55.0	61	58.1	ns
Non-removal of foreign bodies	24	44.4	19	37.2	43	41.0	ns
Surgery and/or dialysis	7	13.0	10	19.6	17	16.2	ns
Total number of newborns	54	51.4	51	48.6	105	100

Notes: Catheter use was unknown in 2 newborns, catheter complications were unknown in 2, drain use was unknown in 2, mechanical ventilation was unknown in 2, parenteral nutrition was unknown in 2, foreign body removal was unknown in 12, and surgery and/or dialysis were unknown in 6.

Abbreviations: ICU, intensive care unit; ns, not significant.