Table 1 Mean sampling rate of the preselected clinical variables in the septic shock and non-sepsis cohorts.

From: Critical Transitions in Intensive Care Units: A Sepsis Case Study

Variable

Sampling Rate per Day

Septic Shock

Non-Sepsis

BUN

1.7

1.1

Creatinine

1.7

2.6

Hemoglobin

1.9

5.0

Bicarbonate

1.7

1.5

Respiratory Rate

20.5

4.4

Heart Rate

20.2

9.8

Hematocrit

2.2

8.2

WBC

1.5

9.2

SpO2

20.1

8.1

Platelets

1.6

5.3

Systolic BP

19.8

9.3

Urine Output

12.1

10.2

Temperature

6.7

9.1

Sodium

2.0

3.2

Diastolic BP

19.8

10.4

Mean BP

20.0

6.6

Potassium

2.5

3.8

  1. For a single patient, the sampling rate was the ratio of the number of observations recorded in the ICU to the length of the patient’s stay (in days). The rate was then averaged over all the patients in the respective cohorts.