Table 1.

Characteristics of the study group.

Characteristic	Study Group (n = 1062)
Age
0–20 years	45 (4.2%)
21–40 years	522 (49.2%)
41–60 years	336 (31.6%)
61–80 years	155 (14.6%)
81 years and older	4 (0.4%)
Gender
Male	323 (30.4%)
Female	710 (66.9%)
Prefer not to answer	24 (2.3%)
Other	5 (0.4%)
Region
Mazowieckie	239 (22.5%)
Pomorskie	68 (6.4%)
Lubuskie	21 (2.0%)
Małopolskie	70 (6.6%)
Podkarpackie	41 (3.9%)
Dolnośląskie	59 (5.6%)
Kujawsko-pomorskie	88 (8.3%)
Wielkopolskie	79 (7.4%)
Lubelskie	50 (4.7%)
Podlaskie	32 (3.0%)
Warmińsko-mazurskie	42 (4.0%)
Śląskie	130 (12.2%)
Łódzkie	89 (8.4%)
Zachodnio-pomorskie	34 (3.2%)
Świętokrzyskie	5 (0.5%)
Opolskie	15 (1.4%)
Education
primary	9 (0.8%)
lower-secondary	6 (0.6%)
basic vocational	22 (2.1%)
secondary	258 (24.3%)
higher	767 (72.2%)