Abstract
Results.– Healthy controls and AD patients differed markedly in olfaction performance based on the two PST’s in study I (P<0.001). In study II, ADwas diagnosed in 24whileminimal cognitive impairment was detected in 8, vascular dementia in 7, alcohol induced impairment in 6, depression in 4 and Parkinson’s disease and Lewi body dementia in 1 each. AD/non-AD had 2.4/3.2 correct answers (P=0.06). None in the AD group had 0 smell errors and odds ratio for AD was 0.08 (95% CI: 0.009–0.7) in patients with 0 or 1 smell error (P=0.023) after adjusting for age. Conclusions.– AD had more scent errors than healthy controls and 0 error was seen only in non-AD patients with other causes of cognitive impairment. This suggests the inclusion of PST in first line examination of patients with cognitive decline.
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