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Table 1 Illustrations of alternative types of data preprocessing filters applied to different types of clinical measurements

From: Modeling and prediction of pressure injury in hospitalized patients using artificial intelligence

Item

Date group/type

Data type/nature

Derived-data aggregation method

1

Biographical

Static/single

As is

2

Daily vital data

Time series (daily)

Min, max, mean

3

Braden (4 metrics)

Time series

min, max for each

4

Location/units

Unit names and dates

LOS for each location

5

Periop

Time series

avg, absolute min, absolute max

6

Surgical related data

  
 

 Anesthesia duration

Time series (minutely)

Total duration

 

 Procedure room stay

Time series (minutely)

Total duration

 

 Surgical schedule?

Categorical

As is?

 

 Surgical service?

Categorical

As is?

7

Staffing data

Time series

Mean (RN HPPD and Total HPPD)

8

ASA data (severity of illness)

Time series

Min, max, mean, SD

  1. *American Society of Anesthesiologists (ASA)