- Postoperative delirium occurred in 27% of patients with cognitive impairment vs less than 1% without impairment.
- Only 17% of patients with cognitive impairment remained independent in activities of daily living following surgery vs 48% of patients without impairment.
- Nonhome discharge occurred in 50% of patients with cognitive impairment vs 36% without impairment.
- Thirty-day mortality was 0% in both matched groups, and overall complication rates remained low.
- Researchers noted that cognitive impairment was identified through clinical documentation rather than standardized cognitive testing, likely underestimating true prevalence.
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