Objectives: In this study; It was aimed to examine the levels of vitamin D and Parathormone (PTH) serum levels in geriatric male patients with Obstructive Sleep Apnea Syndrome (OSAS) and to compare the results of geriatric men without OSAS to evaluate the possibility of vitamin D deficiency as a predisposing factor for OSAS in the geriatric men.

Materials and Methods: Polysomnography (PSG) was applied to 162 geriatric men (aged 65 to 79 years) in the sleep laboratory. Serum Vitamin D, PTH, calcium and phosphorus levels were measured for all elderly people who participated in the study. Their height, weight, body mass index (BMI), Apnea Hypopnea Index (AHI), oxygen desaturation index (ODI) were determined. The patient group consisted of moderate and severe OSAS and 88 elderly men who had not yet begun treatment, and the control group consisted of 74 elderly men without OSAS.

Results: No statistically significant difference was found between the age, phosphorus, calcium and serum parathormone levels of elderly men who had OSAS and constituted the control group. However, a statistically significant difference was found between serum vitamin D level, BMI, ODI and AHI levels. In our study, the mean age of elderly male patients with OSAS was 70.72 ± 4.60.

Conclusion: A statistically significant difference was detected between BMI, ODI, AHI and Serum Vitamin D values when the control group and geriatric patients with OSAS were compared. On the other hand, no statistically significant difference was found between the age, phosphorus, calcium and serum parathormone levels of the treated and non-treated groups.