Assurance de qualité pour le cancer rectal – phase 2 ...

124 PROCARE – phase 2 KCE reports 81PROPORTION OF CSTAGE II-III PATIENTS TREATED WITHNEOADJUVANT 5-FU BASED CHEMORADIATION, THAT RECEIVEDA CONTINUOUS INFUSION OF 5-FUMeasurement in prospective PROCARE databaseThe calculation of the denominator of this QI is identical to that of the numerator ofthe previous QI. In the data entry form, no specific variable is available for theregistration of continuous infusion. This information can be extracted from the variables‘CH_V112’ and ‘CH_V122’, where the chemotherapy regimen is registered. However,this needs too much interpretation to allow a calculation in SAS, rendering the QI notmeasurable at this moment.Measurement in coupled administrative databaseAlthough it is possible to identify patients receiving 5-FU through a specific CNK-codein the IMA database (cfr. supra), it is impossible to know if this 5-FU is given viacontinuous infusion. Therefore, this QI is not measurable with the administrativedatabases.PROPORTION OF CSTAGE II-III PATIENTS TREATED WITH ALONG COURSE OF PREOPERATIVE PELVIC RT ORCHEMORADIATION, THAT COMPLETED THIS NEOADJUVANTTREATMENT WITHIN THE PLANNED TIMINGMeasurement in prospective PROCARE database (Figure 36)The calculation of the denominator of this QI is identical to that of the numerator of QI1222. Within this group of patients, those without a treatment interruption of morethan 5 working days are selected using variable ‘RD_V107’. As for variable ‘FU_V139’(see above), the default value of variable ‘RD_V107’ was ‘0’ (i.e. missing values alsoreceived a value ‘0’), making it impossible to distinguish absence of treatmentinterruption from missing values. However, in a random sample of 20 forms with a value‘0’ for variable ‘RD_V107’ only 1 missing value (5%) was found.Measurement in coupled administrative databaseAs mentioned before, the identification of a long course of RT, i.e. at least 25 fractionsof 1.8 Gy, is impossible in the administrative databases.