According to the results of demographic research, the proportion of people of retirement age in the Russian Federation (women over 55 years old and men over 60 years old) As of January 1, 2022, it was 38.8 million people, or 26.62% of the total number of Russians (145,864,296 people). As of January 1, 2022, 1,509,217 … Continue reading Age-related features of morbidity and disability in diseases of the digestive system in the adult population of St. Petersburg in dynamics for 2013-2021