Soins maternels intensifs (Maternal Intensive Care) en Belgique - KCE

KCE Reports 94 Maternal Intensive Care in Belgium 129
ANNEX 3 : MERGE OF AIM-IMA AND RCM-MKG DATABASES
Table 3 : MKG/RCM : received files
2003 2004
Name of the RCM-file
Class. Hospit. Day Hosp. Class. Hospit. Day Hosp.
Sum
File Patient : 282.983 304.035
File Hospital stays : 282.983 22.071 304.035 28.922
File Extra Stays : 282.983 22.071 304.035 28.922
File Stay ./. Specialism : 304.134 22.926 356.273 32.013 703.316
File Stay ./. Bedindex : 298.401 22.362 321.352 29.609 661.499
File Stay ./. Care unit : 353.744 23.304 396.699 32.204 792.992
File Diagnose : 797.271 45.432 895.235 68.251 1.772.110
File ICD9 procedures : 542.251 31.975 582.789 45.280 1.180.393
File INAMI procedures : 1.816.702 95.087 196.074 134.632 3.930.927
File Newborn babies : 119.369 944 120.819 779 239.583
Table 4: Merging-preparation of MKG/RCM data
2003 2004
Class. Hospit. Day Hosp. Class. Hospit. Day Hosp.
1.1 Creation of a basic databank
merging RCM data in PATVERBIJF, STAYHOSP
1.2 Neutralisations
282.983 282.983 304.035 304.035
1ste neutralisation : only classical hospitalisations - 215 - 279.499 - 206 - 298.096
2de neutralisation : only records with IDnumbers - 90.788 - 354 - 106.496 - 772
1.3 Segmentation in 3 databanks
(=denominator of pct linked records)
191.980 3.130 197.333 5.167
Records with age=0 --> Babies 59.700 1.177 59.119 474
Others records --> "Mothers" 132.280 1.953 138.215 4.693
Dubbles records of "mothers" 17.123 9 18.253 18
Remark :
Among the MKG/RCM hospital stays, many patients are admitted and discharged during
the same month and week The majority of these stays appeared to be stays from the
newborns or other children.
We created 3 new databases based on the age of the admitted patient:
• Newborns: when the age is zero, the patient was considered to
be a newborn
• Mothers: the other stays were those of the mothers
Merging of data
• Doubles: stays with double records were kept in a separate
database.
The first cycle of merging was based on IMA/AIM administrative data and health care
invoices.
For some MKG/RCM data, one hospital admission corresponds up to 6 numbers of
patients‘ identification. A merge was attempted for each ID.
The merging procedure was repeated on all three MKG/RCM databases, (newborns,
mothers, and doubles). The merge of the doubles was done in order to differentiate
between mothers and newborns because they have the same IMA/AIM ID if the baby
was not admitted directly after the birth.
The first merge was realised on the exact match of the admission and discharge dates.
However, these dates did not always correspond exactly.