Table 1.
Patient features and risk factors for catheter-related bloodstream infection
| Year | ||||
|---|---|---|---|---|
| 2009 | 2010 | 2011 | P value | |
| No. of patients | 1555 | 1689 | 1738 | |
| Age, years, median (P25–P75) | 59·8 (39–72) | 60·9 (42–73) | 61·9 (43–73) | 0·045 |
| Male gender, % (n) | 59·9 (931) | 62·3 (1053) | 60·0 (1042) | 0·251 |
| Intrinsic risk factors, % (n) | ||||
| Obesity | 7·1 (110) | 5·5 (93) | 7·3 (127) | 0·072 |
| Malignancy | 23·7 (369) | 23·1 (391) | 32·2 (559) | <0·001 |
| Neutropenia | 1·5 (24) | 1·4 (23) | 1·2 (21) | 0·710 |
| Diabetes | 18·8 (293) | 19·7 (332) | 21·4 (372) | 0·168 |
| Burns | 1·0 (16) | 1·3 (22) | 1·1 (19) | 0·742 |
| Immunosuppression | 3·8 (59) | 5·9 (100) | 5·6 (98) | 0·013 |
| Extrinsic risk factors, % (n) | ||||
| Urinary catheter | 72·9 (1133) | 79·4 (1342) | 80·6 (1401) | <0·001 |
| Peripheral line | 64·7 (1007) | 79·7 (1346) | 90·6 (1575) | <0·001 |
| Nasogastric tube | 50·5 (786) | 56·3 (951) | 50·6 (880) | <0·001 |
| Arterial catheter | 52·0 (808) | 65·8 (1111) | 70·9 (1232) | <0·001 |
| Mechanical ventilation | 19·9 (309) | 26·9 (455) | 28·4 (493) | <0·001 |
| Chemotherapy | 6·4 (99) | 4·0 (68) | 5·1 (89) | 0·011 |
| Surgery | 48·9 (760) | 54·3 (918) | 55·4 (963) | <0·001 |
CVC, Central venous catheter.