Validity

Data Quality » Validity » Overall validity

FIGURE Validity (proportion [%] per joint) of the registration of procedures in the LROI in 2019

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TABLE Validity of the registrations in the LROI

Hip  Knee Ankle Shoulder Elbow Wrist Finger
Number of procedures (n) 42,925 34,037 156 3,610 197 132 253
Valid registered procedures (%) 96.0 98.5 91.7 92.5 80.7 84.1 69.6

© LROI 2020

Data Quality » Validity » Validity per variable

TABLE Overview of validity by variable for each joint of hip, knee, ankle, shoulder, wrist and finger arthroplasties registered in the LROI in the Netherlands in 2019

Hip  Knee Ankle Shoulder Elbow Wrist Finger
Number of arthroplasties (n) 42,925 34,037 156 3,610 197 132 253
  Number of primary arthroplasties (n) 39,121 30,968 127 3,259 137 103 235
  Number of revision arthroplasties (n) 3,804 3,069 29 351 60 29 18
General characteristics % % % % % % %
  Gender 100.0 100.0 100.0 100.0 100.0 100.0 100.0
  Encrypted citizen service number 99.7 99.9 100.0 99.7 100.0 100.0 100.0
  HIS patient number 100.0 100.0 100.0 100.0 100.0 100.0 100.0
  Date of birth 100.0 100.0 100.0 100.0 100.0 100.0 100.0
  Type of procedure 100.0 100.0 100.0 100.0 100.0 100.0 100.0
  Operating side  100.0 100.0 100.0 100.0 100.0 100.0 100.0
  Postal code 99.9 99.9 100.0 100.0 100.0 95.5 93.7
  BMI 97.6 99.6 99.4 98.8 98.0 93.2 90.9
  Smoking 99.4 99.8 96.8 98.6 98.5 94.7 92.5
  ASA score 99.7 99.6 100.0 97.8 98.9 93.9 96.1
  Fixation 99.8 99.7 98.7 99.8 100.0 90.2 93.3
Primary arthroplasty characteristics % % % % % % %
  Diagnosis 99.1 99.7 100.0 99.6 100.0 93.2 97.5
  Charnley/Walch score 98.7 99.6 98.4 94.2 n.a. n.a. n.a.
  Prosthesis 99.9 99.9 99.2 99.9 100.0 93.2 81.4
  Surgical approach 99.8 99.7 97.6 99.6 99.3 93.2 96.2
Revision arthroplasty characteristics  % % % % % % %
  Type of revision 99.5 99.5 100.0 98.6 100.0 100.0 94.4
  Charnley score 97.9 97.2 n.a. n.a. n.a. n.a. n.a.
  Reason for revision 98.6 98.4 100.0 97.2 86.7 100.0 88.9

Please note: Validity by variable as determined in May 2020.
HIS: hospital information system; BMI: body mass index.

© LROI 2020