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Updated: Jan 22, 2026

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
Published on: February 14, 2014
Increased age adversely affects the therapeutic effect of CPAP treatment for olfactory functions
Ayse Secil Dinc1, Melih Cayonu2, Sezgi Sahin Duyar3
1Department of Otorhinolaryngology, Ankara Numune Training and Research Hospital, Talatpasa Avenue, 06230, Ankara, Turkey.
Purpose:
The aim of this study was to compare olfactory functions pre- and post-CPAP treatment in patients with moderate to severe OSA, and to evaluate the factors that cause changes in olfactory functions.
Methods:
Twenty-two patients who had completed regular usage of CPAP treatment for 2 months were included in this prospective study. Olfactory tests using Sniffin' Sticks were performed pre- and post-treatment.
Results:
The mean age of the subjects was 47.6 ± 9.5 years. We did not find a significant change in olfactory functions after 2 months of CPAP treatment in our study group. When the patients were divided into two groups-those whose olfactory functions showed improvement and those whose functions did not-it was found that the mean age of the patients whose olfactory functions did not improve was significantly higher statistically. A significant adverse correlation was found between age and post-treatment olfactory functions, specifically in odour threshold and odour identification scores.
Conclusions:
Increased age adversely affects the therapeutic effect of CPAP treatment for olfactory functions.
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