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. 2018 Aug 1;7(8):194. doi: 10.3390/jcm7080194

Table 1.

Demographics variables of the samples.

Clinical Sample
(N = 515)
Control Sample
(N = 183)
Total Sample
(N = 698)
Age
M = 39.03, SD = 11.64 M = 29.09, SD = 8.62 M = 36.44, SD = 11.77
Sex
n % n % n %
Male 398 77.3 84 45.9 482 69.1
Female 111 21.6 98 53.6 209 29.9
Missing values 6 1.2 1 0.5 7 1.0
Nationality
Italian 468 90.9 179 97.8 647 92.7
Other 27 5.2 1 0.5 28 4.0
Missing values 20 3.9 3 1.6 23 3.3
Marital status
Single 284 55.1 127 69.4 411 58.9
Married 117 22.7 45 24.6 162 23.2
Separated 46 8.9 1 0.5 47 6.7
Divorced 26 5.0 4 2.2 30 4.3
Widowed 7 1.4 2 1.1 9 1.3
Cohabitant 30 5.8 3 1.6 33 4.7
Missing values 5 1.0 1 0.5 6 0.9
Professional condition
Unemployed 237 46.0 22 12.0 259 37.1
Looking for first job 15 2.9 10 5.5 25 3.6
Entrepreneur 19 3.7 16 8.7 35 5.0
Employee 63 12.2 39 21.3 102 14.6
Artisan 31 6.0 4 2.2 35 5.0
Trader 16 3.1 4 2.2 20 2.9
Armed forces 2 0.4 2 1.1 4 0.6
Housewife 6 1.2 5 2.7 11 1.6
Student 18 3.5 69 37.7 87 12.5
Retired 29 5.6 1 0.5 30 4.3
Other 72 14.0 9 4.9 81 11.6
Missing values 7 1.4 2 1.1 9 1.3
Study degree (years of education)
Elementary school (5 years) 33 6.4 0 0 33 4.7
Middle School diploma (8 years) 250 48.5 22 12.0 272 39.0
High School diploma (13 years) 199 38.6 99 54.1 298 42.7
University degree (16 years) 11 2.1 29 15.8 40 5.7
Master’s degree (18 years) 12 2.3 25 13.7 37 5.3
Post-Lauream Specialization (22 years) 5 1.0 8 4.4 13 1.9
Missing values 5 1.0 0 0 5 0.7