The national register overestimates total cerebrovascular events but underestimates ischemic strokes, highlighting the need for caution when using this registry for stroke research.
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Caution warranted interpreting DNRP cerebrovascular rates; leaves open accurate ischemic stroke ascertainment in registries.
Our results show that the DNRP tends to overestimate the number of cerebrovascular events, while ischemic stroke is underestimated.
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Krarup et al. (2007) studied this question.
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