Agreement between self-reported data on medicine use and prescription records vary according to method of analysis and therapeutic group
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Agreement between self-reported data on medicine use and prescription records vary according to method of analysis and therapeutic group. / Nielsen, Merete Willemoes; Søndergaard, Birthe; Kjøller, Mette; Hansen, Ebba Holme.
In: Journal of Clinical Epidemiology, Vol. 61, No. 9, 2008, p. 919-24.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Agreement between self-reported data on medicine use and prescription records vary according to method of analysis and therapeutic group
AU - Nielsen, Merete Willemoes
AU - Søndergaard, Birthe
AU - Kjøller, Mette
AU - Hansen, Ebba Holme
N1 - Keywords: Data Collection; Drug Utilization; Humans; Pharmaceutical Preparations; Pharmacoepidemiology; Prescriptions, Drug; Records as Topic
PY - 2008
Y1 - 2008
N2 - OBJECTIVE: This study compared national self-reported data on medicine use and national prescription records at the individual level. STUDY DESIGN AND SETTING: Data from the nationally representative Danish health survey conducted in 2000 (n=16,688) were linked at the individual level to national prescription records covering 1999-2000. Kappa statistics and 95% confidence intervals were calculated. RESULTS: Applying the legend time method to medicine groups used mainly on a chronic basis revealed good to very good agreement between the two data sources, whereas medicines used as needed showed fair to moderate agreement. When a fixed-time window was applied for analysis, agreement was unchanged for medicines used mainly on a chronic basis, whereas agreement increased somewhat compared to the legend time method when analyzing medicines used as needed. CONCLUSION: Agreement between national self-reported data and national prescription records differed according to method of analysis and therapeutic group. A fixed-time window is an appropriate method of analysis for most therapeutic groups.
AB - OBJECTIVE: This study compared national self-reported data on medicine use and national prescription records at the individual level. STUDY DESIGN AND SETTING: Data from the nationally representative Danish health survey conducted in 2000 (n=16,688) were linked at the individual level to national prescription records covering 1999-2000. Kappa statistics and 95% confidence intervals were calculated. RESULTS: Applying the legend time method to medicine groups used mainly on a chronic basis revealed good to very good agreement between the two data sources, whereas medicines used as needed showed fair to moderate agreement. When a fixed-time window was applied for analysis, agreement was unchanged for medicines used mainly on a chronic basis, whereas agreement increased somewhat compared to the legend time method when analyzing medicines used as needed. CONCLUSION: Agreement between national self-reported data and national prescription records differed according to method of analysis and therapeutic group. A fixed-time window is an appropriate method of analysis for most therapeutic groups.
KW - Former Faculty of Pharmaceutical Sciences
U2 - 10.1016/j.jclinepi.2007.10.021
DO - 10.1016/j.jclinepi.2007.10.021
M3 - Journal article
C2 - 18468858
VL - 61
SP - 919
EP - 924
JO - Journal of Clinical Epidemiology
JF - Journal of Clinical Epidemiology
SN - 0895-4356
IS - 9
ER -
ID: 6511420