*3.1. Participants' Characteristics*

The cross-sectional analysis included 500 patients (290 female, 58% and 210 male, 42%) aged 60 and more (mean M = 67.9 ± 4.2). Most of the participants suffered from one or more chronic diseases such as coronary heart disease (*n* = 63, 12.6%), diabetes mellitus (*n* = 74, 14.8%), asthma (*n* = 43, 8.6%), COPD (*n* = 33, 6.6%), heart failure (*n* = 71, 14.2%), kidney failure (*n* = 20, 4.0%) and gastroesophageal reflux disease (*n* = 68, 13.6%). Only 62 (12.4%) and 51 (10.2%) of patients underwent influenza vaccination in 2019 and 2020, respectively. The reason for such low interest in vaccination was the fear of possible vaccine adverse effects (*n* = 164, 32.8%), and lack of availability of vaccines (*n* = 104, 20.8%). Moreover, the GP doctor recommended vaccination against influenza and pneumococci only in 81 (16.2%) patients. All participants currently take medications. Most of them (*n* = 301, 60.2%) take 1 to 3 drugs. The most commonly used medications were antihypertensive (*n* = 255, 51.0%), and analgesics (*n* = 230, 46.0%). The majority of participants buy medication without prescription (*n* = 378, 75.6%), mostly analgesics (*n* = 305, 61.0%), and vitamins (*n* = 345, 69.0%). A significant number of patients suffer from depression (*n* = 176, 35.2%). Most of the participants are fit persons according to ADL (*n* = 493, 98.6%), and have proper nutritional status according to MNA (*n* = 418, 83.6%). A detailed data on the general, clinical and psychological characteristics of the surveyed people is presented in Table 1.
