Table 2 Development of primary BSI rates during the first three years of participation in 26 old/voluntary and 95 new/mandatory participants in NEO-KISS
Old/voluntary participants (N = 26, starting in NEO-KISS January 2000- December 2002) | New/mandatory participants (N = 95, starting in NEO-KISS January-December 2006) | |||||||
|---|---|---|---|---|---|---|---|---|
1st year | 2nd year | 3rd year | Total | 1st year | 2nd year | 3rd year | Total | |
Number of VLBW infants | 1421 | 1310 | 1207 | 3938 | 2855 | 2740 | 2676 | 8271 |
Pooled mean birth weight (g) | 1070 | 1125 | 1085 | 1095 | 1145 | 1140 | 1146 | 1140 |
Number of patient days | 59314 | 52112 | 48651 | 160077 | 103198 | 100382 | 98416 | 301996 |
Mean observation days per patient | 41.7 | 39.8 | 40.3 | 40.6 | 36.1 | 36.6 | 36.8 | 36.5 |
CVC utilization rates (%) | 21.2 | 22.1 | 22.6 | 21.9 | 24.9 | 24.2 | 22.7 | 24.0 |
Number of BSI | 456 | 347 | 294 | 1097 | 509 | 439 | 384 | 1332 |
BSI Incidence density (per 1000 patient days) | 7.7 | 6.7 | 6.0 | 6.9 | 4.9 | 4.4 | 3.9 | 4.4 |