Ressources et utilitaires
Scoring systems for ICU and surgical patients:
SNAP-II and SNAPPE II (Score for Neonatal Acute Physiology and SNAP Perinatal Extension)
Ref: D K. Richardson et al .
SNAP-II and SNAPPE-II: Simplified newborn illness severity and
mortality risk scores. J Pediatr 2001; 138:
92-100
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SNAPPE II
Calibration
of mortality risk model, by birth weight category
(Logistic regression equation is not available)
|
Observed
deaths
|
Expected
deaths
|
SNAPPE-II
|
Total
|
No.
|
%
|
No.
|
%
|
For
all birth weights
|
0-9
|
16,274
|
48
|
0.3%
|
51
|
0.3%
|
10-19
|
3,923
|
61
|
1.6%
|
61
|
1.6%
|
20-29
|
1,952
|
74
|
3.8%
|
71
|
3.6%
|
30-39
|
1,262
|
93
|
7.4%
|
101
|
8.0%
|
40-49
|
790
|
124
|
15.7%
|
116
|
14.7%
|
50-59
|
476
|
105
|
22.1%
|
102
|
21.4%
|
60-69
|
310
|
101
|
32.6%
|
100
|
32.3%
|
70-79
|
142
|
55
|
38.7%
|
63
|
44.4%
|
> =
80
|
141
|
94
|
66.7%
|
90
|
63.8%
|
|
|
Observed
deaths
|
Expected
deaths
|
SNAPPE-II
|
Total
|
No.
|
%
|
No.
|
%
|
For
<1500 g
|
0-9
|
1,526
|
9
|
0.6%
|
7
|
0.5%
|
10-19
|
1,092
|
30
|
2.7%
|
24
|
2.2%
|
20-29
|
772
|
40
|
5.2%
|
38
|
4.9%
|
30-39
|
645
|
61
|
9.5%
|
60
|
9.3%
|
40-49
|
497
|
79
|
15.9%
|
78
|
15.7%
|
50-59
|
318
|
72
|
22.6%
|
72
|
22.6%
|
60-69
|
260
|
85
|
32.7%
|
84
|
32.3%
|
70-79
|
121
|
46
|
38.0%
|
53
|
43.8%
|
> =
80
|
132
|
88
|
66.7%
|
85
|
64.4%
|
|
|
Observed
deaths
|
Expected
deaths
|
SNAPPE-II
|
Total
|
No.
|
%
|
No.
|
%
|
For
>=1500 g
|
0-9
|
14,748
|
39
|
0.3%
|
45
|
0.3%
|
10-19
|
2,831
|
31
|
1.1%
|
37
|
1.3%
|
20-29
|
1,180
|
34
|
2.9%
|
33
|
2.8%
|
30-39
|
617
|
32
|
5.2%
|
40
|
6.5%
|
40-49
|
293
|
45
|
15.4%
|
38
|
13.0%
|
50-59
|
158
|
33
|
20.9%
|
30
|
19.0%
|
60-69
|
50
|
16
|
32.0%
|
16
|
32.0%
|
70-79
|
21
|
9
|
42.9%
|
10
|
47.6%
|
> =
80
|
9
|
6
|
66.7%
|
5
|
55.6%
|
|
Patients excluded :
1. Babies released to
the regular nursery in <24 hours;
2. Babies admitted to the neonatal intensive care unit at >48
hours of age or after having been discharged home;
3. Moribund infants when an explicit physician decision not to
provide life support was made at the time of NICU admission;
4. Babies who died in the delivery room.
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