Table 1.
Data analysis
| Swiss neonatal network | Vermont-oxford-network | EuroNeoNet | Difference VON-SNN | |||
|---|---|---|---|---|---|---|
| |
All units |
min. |
max. |
|
|
|
| Years |
2009-2011 |
2009 |
2011 |
2010 |
2010 |
- |
| Units |
9 |
- |
- |
ca. 850 |
96 |
- |
| N |
2025 |
95 |
388 |
53862 |
6389 |
- |
| Sex male |
52.2% |
42.3% |
59.8% |
51.0% |
50.4% |
0.29 |
| Multiples |
36.0% |
24.9% |
44.2% |
28.0% |
33.1% |
<0.001 |
| Small for Gestation |
19.2% |
15.4% |
21.4% |
21.0% |
|
0.05 |
| Inborn |
95.0% |
91.5% |
97.8% |
86.0% |
|
<0.001 |
| UapH measured |
82.7% |
*64.4% |
*94.7% |
|
|
|
| Caesarean Section |
77.2% |
*63.4% |
*88.5% |
73.0% |
72.3% |
<0.001 |
| Full prenatal steroids |
71.1% |
*59.8% |
*79.8% |
|
|
|
| Any prenatal steroids |
87.9% |
79.7% |
*98.6% |
78.0% |
83.5% |
<0.001 |
| Major birth defects |
5.0% |
3.4% |
7.0% |
5.0% |
|
1 |
| Mortality |
13.6% |
5.8% |
*19.4% |
12.6% |
10.8% |
0.185 |
| PDA† |
28.3% |
*11.2% |
*41.8% |
37.0% |
|
<0.001 |
| PPH† |
5.4% |
*0.9% |
*12.4% |
|
|
|
| NEC† |
2.0% |
0.6% |
3.6% |
6.0% |
5.9% |
<0.001 |
| Early Onset Sepsis† |
2.0% |
0.6% |
*7.4% |
2.0% |
3.5% |
1 |
| Late Onset Sepsis† |
7.4% |
2.5% |
*11.7% |
15.0% |
25.5% |
<0.001 |
| O2 at 36w GA‡ |
9.5% |
3.0% |
19.8% |
30.0% |
10.7% |
<0.001 |
| Mechanical ventilation† |
51.8% |
*40.6% |
*71.5% |
64.0% |
|
<0.001 |
| CPAP† |
78.4% |
*67.3% |
*86.3% |
69.0% |
|
<0.001 |
| CPAP w/o mech. vent.† |
31.3% |
*12.6% |
*47.6% |
|
|
|
| Surfactant† |
45.9% |
*25.1% |
*65.2% |
64.0% |
51.8% |
<0.001 |
| ROP stage 3-4† |
2.3% |
0.0% |
5.3% |
6.0% |
2.7% |
<0.001 |
| PIH stage 3-4† |
6.4% |
3.8% |
9.8% |
9.0% |
7.7% |
<0.001 |
| cPVL† |
2.3% |
0.0% |
4.7% |
3.2% |
3.9% |
0.027 |
| Growth† |
9.4% |
*7.7% |
*14.5% |
|
|
|
| Surgery† |
10.3% |
5.0% |
15.2% |
16.0% |
|
<0.001 |
| Length of stay† |
56.9 |
46.9 |
65.2 |
|
|
|
| Length of stay‡ | 55.0 | 44.2 | 64.4 | 64.8 | n/a | |
Data analysis and comparison to Vermont-Oxford-Network [14] and EuroNeoNet [15] for all live-births between 501-1500 g birth-weight (without delivery room deaths (†), or that have survived until discharge home (‡)). For a definition of the listed items see [2,4]. The first column shows the mean Swiss value. The second and third columns render the lowest (min.) and highest (max.) value achieved by one of the network units. An asterisk (*) marks where each value significantly differs from the value of the entire Swiss collective. UapH: umbilical artery pH, PDA: patent ductus arteriosus, PPH: positive pulmonary hypertension, NEC: necrotizing enterocolitis, CPAP: continuous positive airway pressure, ROP: retinopathy of prematurity, PIH: periventricular- intraventricular haemorrhage, cPVL: cystic periventricular leucomalacia, growth: rate of children born small for gestational age that have surpassed the 10th weight percentile by discharge.