Check CCI CXR vs LOS

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Data Integrity Checks
Summary: Confirm that a Category:Labs Imaging count is not unreasonably high
Related: CXR (plain film), LOS, Arrive DtTm, Dispo DtTm
Firmness: hard check
Timing: complete
App: CCMDB.accdb
Coding: query check_CCI_CXR_vs_LOS
Uses L Problem table: not relevant for this app
Status: needs review
Implementation Date: not entered
Backlogged: No


  • Cargo


  • SMW


  • Categories: 

We have had some medical Category:Labs Imaging count entries that are so high that they are likely errors.

What are likely maximum entries?

The count per patient stay is related to the LOS. The threshold limits are either Mean + 3 Standard Deviation or Maximum value of Chest X-ray count per patient day for various LOS category listed in the table below. They are derived from July 1988 to June 2017 Lab data. The LOS is based on calendar dates where partial stay is considered as full day.

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would we not use Accept DtTm here? Because we could have CXRs on days before arrival...

  • SMW


  • Cargo


  • Categories
    • if patient is still in the unit, Dispo DtTm is replaced by today's date
  • Chest X-ray (CXR) per patient day = Number of chest X-rays / LOS Based on calendar dates
LOS_days N Mean Std Dev Minimum Median 75th Pctl 90th Pctl 95th Pctl 99th Pctl Maximum mean + 3 Std Dev Limits of CXR per patient day
1 4021 1.16 0.42 1 1 1 2 2 3 5 2.42 5
2 23910 0.83 0.31 0.5 1 1 1 1.5 2 4 1.76 4
3-10 52600 0.64 0.34 0.1 0.67 0.88 1 1.25 1.6 3 1.66 3
11-20 7784 0.7 0.31 0.05 0.71 0.92 1.09 1.19 1.42 2.47 1.63 2
21-30 1870 0.68 0.3 0.03 0.69 0.9 1.05 1.14 1.36 2.57 1.58 2
31-40 660 0.62 0.3 0.03 0.64 0.84 1 1.09 1.32 1.67 1.52 2
41-50 311 0.54 0.29 0.02 0.53 0.73 0.93 1.02 1.21 1.58 1.41 2
51-100 347 0.41 0.26 0.02 0.38 0.6 0.76 0.85 1.12 1.2 1.19 1
> 100 101 0.19 0.21 0.01 0.11 0.2 0.48 0.73 0.88 1.09 0.82 1

CCMDB.accdb cross checks triggering for correct values

If the actual correct data leads to a cross-check error CCMDB.accdb will not allow you to send. In that case, enter a value that is acceptable and then email the Data Processor using the "generate email" button.

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