Skip to main content
. Author manuscript; available in PMC: 2015 Jun 2.
Published in final edited form as: J Arthroplasty. 2013 Nov 8;29(5):923–928.e2. doi: 10.1016/j.arth.2013.11.002

Table 4B.

Coding of Present-on-Admission (POA) indicator for primary TKA complications at readmission

Total Patients eligible for 90-day Readmission (N = 425976)
A B C D E
Number of
patients
experiencing
complication		 POA= Yes POA= No POA= Other POA=Missing
PE, number (%) 1848 (00.4) 1183 (64.0) 55 (3.0) 3 (0.2) 607 (32.9)
Hemorrhage/Hematoma,
number (%)		 1630 (00.4) 715 (43.9) 126 (7.7) 0 789 (48.4)
Infection, number (%) 2163 (00.5) 1442 (66.7) 19 (0.9) 3 (0.1) 699 (32.3)

Note:

1

The denominator used to calculate percentage in column A was N

2

The denominator used to calculate percentage in column B, C, D and E was the number found in column A in the same row.

3

The difference in the number of patients (“N”) between Table 4A and 4B reflect in-487 hospital deaths (575) that occurred during index admission.