Table 4 The diagnostic table of the CKD events defined by the computerized algorithm.

From: The computerized algorithm for renal assessment improves diagnostic accuracy of renal impairment in hospitalized patients

Characteristics

CKD present

CKD absent

Total

Test positive

976 (TP)

0 (FP)

976

Test negative

55 (FN)

520 (TN)

575

Total

1031

520

1551

 

Sensitivity: 94.7%

Specificity: 100.0%

 

Cause analysis for FN CKD diagnosis

Cause

Number of events/total events

Percentage of events

Existent CKD or ESRD without available medical records in the data base

55/55

100.0%

  1. CKD, chronic kidney disease; TP, true positive; FP, false positive; FN, false negative; TN, true negative, ESRD, end-stage renal disease.
  2. Statistical analysis was performed using chi square test.
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