ICU Risk Index Baby (CRIB II) Score - Medical Algorithm

Description

The CRIB II score is an updated and simplified scoring system for neonates receiving intensive care. It is better calibrated with current data compared to the original CRIB score. The authors are from the UK Neonatal Staffing Study Collaborative Group.

Parameters:

(1) birthweight

(2) gender

(3) gestational age

(4) temperature at admission in °C

(5) base excess in mmol/L

Gender	Birthweight	Gestational Age	Points
male	251 - 500	22 weeks	15
		23	14
		24	13
		25	12
		26	11
		27	10
		28	10
	501 to 750	22 weeks	14
		23	13
		24	12
		25	11
		26	10
		27	9
		28	8
		29	8
		30	8
		31	8
	751 to 1,000	23 weeks	12
		24	11
		25	10
		26	8
		27	7
		28	7
		29	6
		30	6
		31	6
		32	6
	1,001 to 1,250	23 weeks	12
		24	10
		25	9
		26	8
		27	7
		28	6
		29	5
		30	4
		31	3
		32	3
	1,251 to 1,500	26 weeks	8
		27	6
		28	5
		29	3
		30	3
		31	2
		32	1
	1,501 to 1,750	27 weeks	6
		28	5
		29	3
		30	2
		31	1
		32	0
	1,751 to 2,000	29 weeks	3
		30	1
		31	0
		32	0
	2,001 to 2,250	30 weeks	2
		31	0
		32	0
	2,251 to 2,500	30 weeks	3
		31	0
		32	0
	2.501 to 2,750	31 weeks	1
		32	0
	2,751 to 3,000	32 weeks	0
female	251 - 500	22 weeks	14
		23	13
		24	12
		25	11
		26	10
		27	10
		28	10
	501 to 750	22 weeks	13
		23	12
		24	11
		25	10
		26	9
		27	8
		28	8
		29	7
		30	7
		31	7
	751 to 1,000	23 weeks	11
		24	10
		25	9
		26	8
		27	7
		28	6
		29	5
		30	5
		31	5
		32	5
	1,001 to 1,250	23 weeks	11
		24	10
		25	8
		26	7
		27	6
		28	5
		29	4
		30	3
		31	3
		32	3
	1,251 to 1,500	26 weeks	7
		27	5
		28	4
		29	3
		30	2
		31	1
		32	1
	1,501 to 1,750	27 weeks	6
		28	4
		29	3
		30	1
		31	0
		32	0
	1,751 to 2,000	29 weeks	3
		30	1
		31	0
		32	0
	2,001 to 2,250	30 weeks	1
		31	0
		32	0
	2,251 to 2,500	30 weeks	2
		31	0
		32	0
	2.501 to 2,750	31 weeks	1
		32	0
	2,751 to 3,000	32 weeks	0

Parameter	Finding	Points
temperature at admission	<= 29.6°C	5
	29.7 to 31.2°C	4
	31.3 to 32.8°C	3
	32.9 to 34.4°C	2
	34.5 to 36.0°C	1
	36.1 to 37.5°C	0
	37.6 to 39.1°C	1
	39.2 to 40.7°C	2
	>= 40.8°C	3
base excess	< -26 mmol/L	7
	-26 to –23 mmol/L	6
	-22 to -18 mmol/L	5
	-17 to -13 mmol/L	4
	-12 to -8 mmol/L	3
	-7 to -3 mmol/L	2
	-2 to 2 mmol/L	1
	>= 3 mmol/L	0

total CRIB II score =

= SUM(points for all 3 parameters)

Interpretation:

• minimum score: 0

• maximum score: 27

• The higher the score, the greater the mortality.

X =

= (0.450 * (CRIB II score)) – 6.476

probability of mortality =

= EXP(X) / (1 + EXP(X))

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Description

Specialty

Objective

ICD-10

The Updated Clinical Risk Index for Babies (CRIB II) Score

Purpose: To evaluate a neonate in the neonatal intensive care unit using the CRIB II score.

Description

Specialty

Objective

ICD-10