[Evaluation of prevalece of plasma 25(OH)D vitamin deficiency in residents of Lodz].Pol Merkur Lekarski. 2016 Mar; 40(237):164-7.PM
Only scarce data have been published regarding serum vitamin D status in adult population in Poland. Observational studies have suggested relationship between 25(OH)D deficiency and many diseases, such as cardiovascular diseases, autoimmunological diseases or cancers. Still little is known about plasma 25(OH)D deficiency in Polish healthy adults.
The aim of the study was to assess plasma 25(OH)D vitamin deficiency in residents of Lodz.
MATERIALS AND METHODS
The study included 326 residents of Lodz, 156 men and 170 women, aged 30-65 years (mean 57,25±8,24 years). The study group was divided according to the age and season. The plasma level of 25(OH)D above 30 ng/ml was considered normal, between 21 ng/ml and 30 ng/ml - suboptimal (hypovitaminosis) and below 20 ng/ml - insufficient (deficiency).
Plasma 25(OH)D vitamin deficiency was observed in 23,01% participants, hipovitaminosis - in 46,32%, the recommended 25(OH)D concentration in the plasma was observed only in 30,67%. Plasma 25(OH)D vitamin deficiency was observed more often in men than women (25,64% vs. 20,59%, p<0,05);the highest percentage of patients with recommended 25(OH)D vitamin level was observed during summer months (60%).
Plasma 25(OH)D vitamin deficiency was very high in residents of Lodz, especially in men, people over 55 years and during winter months.