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Distribution of BIS values according to MAP categories (< 60 mmHg, 60–90 mmHg, > 90 mmHg).
Note: Seventy percent of the patients with MAP > 90 mmHg had adequate BIS levels, and 66% of the patients with MAP < 60 mmHg had adequate BIS levels. All patients older than 60 years and 65% of the patients between 36–59 years had deep BIS levels. MAP: Mean arterial pressure; BIS: bispectral index.
