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Table 2 Percentiles of the distribution of device utilization rates in surveilled neonates during the study period

From: Surveillance of healthcare-associated infections in a neonatal intensive care unit in Italy during 2006–2010

  10° 25° 50° 75° 90°
Umbilical catheter utilization rate      
≤750 g .000 .021 .105 .191 .447
751-1000 g .000 .029 .075 .125 .169
1001-1500 g .052 .058 .105 .142 .178
1501-2500 g .021 .049 .080 .117 .149
>2500 g .017 .041 .081 .135 .167
Central catheter utilization rate      
≤750 g .000 .038 .164 .395 .563
751-1000 g .000 .085 .159 .302 .380
1001-1500 g .017 .066 .140 .200 .277
1501-2500 g .000 .030 .103 .161 .213
>2500 g .000 .037 .074 .139 .221
Mechanical ventilation utilization rate      
≤750 g .000 .117 .352 .564 .748
751-1000 g .000 .059 .175 .329 .500
1001-1500 g .005 .015 .035 .131 .190
1501-2500 g .006 .020 .051 .102 .152
>2500 g .000 .014 .039 .101 .137