Figure 1 | Scientific Reports

Figure 1

From: Assessing risk of stroke after idiopathic sudden sensorineural hearing loss using data from general practice

Figure 1

Selection of cases and matched controls. The figure illustrates the inclusion process of 480 eligible cases with idiopathic sudden sensorineural hearing loss and 1911 matched controls from a total of 490,906 subjects in the primary care database containing coded health record data from 84 general practices in the Nijmegen region, the Netherlands. iSSNHL: idiopathic sudden sensorineural hearing loss.

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