Comparing routine administrative data with registry data for assessing quality of hospital care in patients with myocardial infarction using deterministic record linkage

Table 3 Comparison of documentation for medication upon hospital discharge (BMIR) and medication over 2 quarters after discharge (AOK), with measurement of agreement

Comparison for matched patients	AOK (n = 2305)	BMIR (n = 2305)	Kappa coefficient	Classification according to categories
Statins	73.2 %	90.0 %	0.281	IV
ACE inhibitors and/or sartans	76.4 %	92.3 %	0.192	IV
Beta blockers	78.3 %	95.0 %	0.166	IV
Antithrombotics	81.0 %	98.5 %	0.042	IV

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