Record linkage of hospital discharge register with population register: Experiences at Statistics Netherlands

Age- and Gender-Specific Time Trend in Risk of Death of Patients Admitted with Aneurysmal Subarachnoid Hemorrhage in the Netherlands

“…First, a validation study showed correct coding of nontraumatic SAH in more than 95% of patients (International Journal of Stroke 2012, accepted for publication). Second, several studies have proven that the Dutch registries are a reliable and valid source of data (12)(13)(14)(15). To increase the accuracy of coding we chose to limit the identifying ICD code to the main diagnosis (16)(17)(18).…”

Risk of Cardiovascular Events and Death in the Life after Aneurysmal Subarachnoid Haemorrhage: A Nationwide Study

“…Our study has several strengths. First, the Dutch registries are a reliable and valid source of data (15)(16)(17)(18). Second, patient registers may contain errors in coding, but we have no reasons to believe that these differ between the cohort of SAH survivors and the reference population.…”

Increased mortality and hospital readmission risk in patients with dementia and a history of cardiovascular disease: Results from a nationwide registry linkage study

“…Previously, it has been demonstrated that the quality of the databases and the linkage procedures are high. 9,27 Some limitations need to be addressed. First, the presence of CVD and comorbidity was merely based on discharge diagnoses of previous hospital admissions as the register lacks information on outpatient visits.…”