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

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