SAPS III: Simplified acute physiology score 3

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The Simplified Acute Physiology Score III (SAPS 3) is an ICU scoring system and is used to predict the mortality risk for patients presenting at the ICU.

Research authors: Philipp G.H. Metnitz, Rui P. Moreno, Eduardo Almeida, Barbara Jordan, Peter Bauer, Ricardo Abizanda Campos, Gaetano Iapichino, David Edbrooke, Maurizia Capuzzo, Jean-Roger Le Gall, on behalf of the SAPS 3 investigators

Details Formula Study characteristics Files & References

★★★★

Model author

Evidencio Community

Model ID

1114

Version

1.33

Revision date

2018-08-27

Specialty

Intensive care

MeSH terms

Intensive Care Unit

Model type

Custom model (Conditional)

Status

public

Rating

★ ★ ★ ★

Condition	Formula

Additional information

A total of 22,791 admissions were recorded in the 309 participating ICUs during the study period. For patients who were admitted more than once (n=1,455), only the first admission was included, giving 21,336 admitted patients. Patients who were <16 years of age (n=628), those without ICU admission or discharge data (n=1,074), and those with records that lacked an entry in the field “ICU outcome” (n=57) were excluded. The Basic SAPS 3 Cohort thus comprises 19,577 patients from 307 ICUs.

For the development of a predictive model for hospital mortality as outcome, patients with a missing entry in the field of “vital status at hospital discharge” (n=2,540) or an entry of “still in the hospital” at the end of the follow-up period (n=253) were further excluded. The SAPS 3 Hospital Outcome Cohort thus comprises 16,784 patients from 303 ICUs.

Study Population

Total population size: 19559

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Continuous characteristics

Name	Q1	Median	Q3	Unit
Age	49	63	74	years
ICU Length of Stay	1	2	6	days
SAPS II score	20	30	42	score
SOFA score	6	9	11	score

Categorical characteristics

Name	Subset / Group	Nr. of patients
Origin	Home	2810
	Same hospital	13926
	Chronic care facility	74
	Public place	519
	Other hospital	2125
	Other	80
	Missing	43
Intra-hospital location before ICU admission	Operating room	7537
	Other	552
	Other ICU	698
	Recovery room	482
	Ward	3411
	Missing	916
	Emergency room	5419
	Intermediate care unit/ high dependency unit	562
ICU admission status	Planned admission	6750
	Unplanned admission	12338
	Missing	489
Acute infection at ICU admission	No infection	15254
	Clinically improbable/colonization	342
	Clinically probable/documented	2761
	Microbiologically documented	1206
	Missing	13
Surgical status	No surgical procedure	8437
	Scheduled surgery	6800
	Emergency surgery	3321
	Missing	1019
ICU discharge - destination	Home	438
	Same hospital	14946
	Other hospital	1029
	Missing	3164
Intrahospital discharge	IMCU/HDU	2222
	Other	303
	Other ICU	583
	Recovery room	306
	Ward	12250
	Missing	3855
ICU discharge - status	Planned discharge	14872
	Unplanned discharge	1595
	Missing	3110
Outcome	ICU mortality (%)	15.2

	SAPS III: Simplified acute physiology score 3
	V-1.33-1114.18.08.27
	Refer to Intended Use for instructions before use
	Evidencio B.V., Irenesingel 19, 7481 GJ, Haaksbergen, the Netherlands

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The predicted mortality risk in the ICU is:
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The predicted mortality risk in the ICU is: %

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Result interpretation

The SAPS 3 is an externally validated tool that accurately predicts ICU mortality. The score was evaluated and compared with the APACHE II and the SAPS 2. The performance of the SAPS 3 was similar to that of the APACHE II and the SAPSII
Discrimination of the SAPS 3 model showed c-statistics up to 0.89. The C-SAPS 3 score appeared to have the best calibration curve on visual inspection.

Y Sakr, C. Krauss, ACKB Amaral, et al. Comparison of the performance of SAPS II, SAPS 3, APACHE II, and their customized prognostic models in a surgical intensive care unit, BJA: British Journal of Anaesthesia, Volume 101, Issue 6, 1 December 2008, Pages 798–803

Calculations alone should never dictate patient care, and are no substitute for professional judgement. See our full disclaimer.

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Additional information

Study Population

Continuous characteristics

Categorical characteristics

Related files

Supporting Publications

The predicted mortality risk in the ICU is:
... %

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The predicted mortality risk in the ICU is: %

Outcome stratification

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Additional information

Study Population

Continuous characteristics

Categorical characteristics

Related files

Supporting Publications

The predicted mortality risk in the ICU is: ... %

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{{ model.survival.YNETitle }}

The predicted mortality risk in the ICU is: %

Outcome stratification

Conditional information

Result interpretation

Model feedback

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The predicted mortality risk in the ICU is:
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