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Table 2 Contingency table statistics used to calculate overall agreement between emergency department and hospital records

From: Measuring care trajectories using health administrative databases: a population-based investigation of transitions from emergency to acute care

ED visits admitted to the acute care hospital in which the ED was located

 

Hospital records

Admitted to attached hospital on same day as discharge from ED

Not admitted to attached hospital on same day as discharge from ED

ED Records

Admitted to acute care in the attached hospital

A: True positives

n = 143,633

B: False positives

n = 26,951

Not admitted to acute care in the attached hospital

C: False negatives

n = 41,243

D: True negatives

n = 851,034

ED visits transferred to an acute care hospital in a different facility

 

Hospital records

Admitted to a different hospital on same day as discharge from ED

Not admitted to a different hospital on same day as discharge from ED

ED Records

Transferred to an acute care in a different facility

A: True positives

n = 6,633

B: False positives

n = 10,318

Not transferred to an acute care in a different facility

C: False negatives

n = 12,495

D: True negatives

n = 1,033,415

  1. Notes: ED emergency department