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

KCE Reports 94 Maternal Intensive Care in Belgium 131
ANNEX 5: ANALYSIS OF UNMERGED STAYS
Unmerged stays of mothers
Number of stays
The analysis of women with some missing data (unmerged MKG/RCM stays) was
carried out separately. Such cases represented only (3.9) % of the total dataset.
4,622 MKG/RCM records of women could not be merged with IMA data, because of
lack of IMA ID, lack of concordance between the dates of in-patient stays in the two
datasets.
There were 113,845 merged in-patients stays, then the 4,622 unmerged stays
represents 3.9% of the total number of stays. If we consider the in-patient stays for
delivery only, there were 97.718 merged stays for delivery and 4,656 unmerged (2.6%).
Here under, we limit the descriptive statistics to women who delivered to avoid
duplicates (a same woman can appear in the dataset for several health episode without
the possibility of linking those episodes).
Characteristics of these stays
Maternal Age
The mean age of women with unmerged stays is 29.8 years (median N= 30)
The mean age of women with merged stays is 29.4 years (median N= 29)
The age distribution graph of the 2 groups is shown in figure X.
The figure X shows that distributions differ, unmerged deliveries include more older
women and less women between 25-29 years old (29.5 % against 35,0% in the merged
stays).
40.00%
35.00%
30.00%
25.00%
20.00%
15.00%
10.00%
5.00%
0.00%
Figure 1: Age distribution of admitted women (unmerged and merged stays)
10-14 15-19 20-24 25-29 30-34 35-39 40-44 45-49 50
Linked deliveries Unlinked deliveries
Source: Merged IMA and MKG/RCM Data 01/10/2003 – 30/09/2004