Critical Care Nurses Inadequately Assess SAPS II Scores of Very Ill Patients in Real Life

Table 1

Reliability across reviewers for the single variables of the SAPS II score.

Variable	Kappa^a (95% CI)	Mean agreement^b	Perfect agreement^c
Heart rate	0.84 (0.79–0.89)	0.88	0.83
Systolic blood pressure	0.76 (0.68–0.84)	0.83	0.75
Temperature	NA	—	1.0
Oxygenation	0.84 (0.80–0.88)	0.91	0.87
Urinary output	0.76 (0.72–0.80)	0.90	0.86
Urea	0.94 (0.91–0.97)	0.97	0.95
Leucocytes	NA	—	0.96
Potassium	NA	—	0.88
Sodium	NA	—	0.98
Bicarbonate	0.84 (0.81–0.87)	0.93	0.89
Bilirubin	NA		0.99
Glasgow Coma Scale	0.74 (0.69–0.79)	0.88	0.82
Age	0.94 (0.92–0.96)	0.95	0.93
Chronic diseases	NA	—	0.94
Type of admission	NA	—	0.94

^aMean weighted Kappa (95% confidence interval) of the 3 reviewer.
^bMean proportions of agreement among the 3 reviewers versus gold standard.
^cPercentage of total agreement among the 3 reviewers versus gold standard.
NA: not applicable; no reliable Kappa statistics (≤20% of results differ from norm).