Table 1.

Detailed results from individual studies

					Deep infection			Superficial infection			Any catheter-related infection
Study	Patients	Cohort	Number of patients	Catheter duration (days)	Number with infection	Percent of patients affected	Per 1000 catheter days	Number with infection	Percent of patients affected	Per 1000 catheter days	Number with infection	Percent of patients affected	Per 1000 catheter days
Aldrete 1998	Noncancer	Retrospective	504	2 to 80 days	4	0.8	no data	5	1.0	no data	9	1.8	no data
Cherry 1985	Cancer	Prospective	50	4200	0	0.0	0.0	2	4.0	0.5	2	4.0	0.5
Crawford 1983	Cancer (94) and benign (11) pain	Retrospective	105	6825	1	1.0	0.1	no data			no data
Crul 1991	Cancer	Retrospective	110	8650	0	0.0	no data	5	4.5	no data	5	4.5	no data
de Jong 1994	Cancer	Retrospective	149	6969	3	2.0	0.4	no data			no data
Du Pen 1990	Cancer (339) and AIDS (11)	Retrospective	350	32354	23	6.6	0.7	30	8.6	0.9	53	15.1	1.6
Erdeine 1991	Cancer	Prospective	225	10642	0	0.0	0.0	9	4.0	0.8	9	4.0	0.8
Holt 1995	Mixed	Prospective	1000	11901	11	1.1	0.9	53	3.6	3.0	59	5.9	5.0
Maier 1994	Perioperative	Retrospective	1621	12540	0	0.0	0.0	46	2.8	3.7	46	2.8	3.7
Plummer 1991	Cancer	Retrospective	284	27264	1	0.4	0.0	22	7.7	0.8	23	8.1	0.8
Smitt 1998	Cancer	Retrospective	91	4326	12	13.2	2.8	39	42.9	9.0	51	56.0	11.8
Zenz 1985	Cancer	Prospective	139	9716	2	1.4	0.2	no data			no data
Patients in studies reporting the outcome					4628			4235			4235
Overall result			4628	135387	57	1.23	0.42	211	4.58	1.78	257	6.07	2.35