Table 1: Demographic characteristics of the interviewed sample and risk factors.

Age          N          %
 ≤ 30 86 16.86
 31-40 97 18.82
 41-50 157 30.78
 > 50 171 33.53
Gender
 Female 337 66.08
 Male 173 33.92
Education
 Primary School 31 5.9
 Secondary School 128 24.5
 University Degree 73 14.0
 At least Fire Years of University Courses 289 55.4
Marital Status
 Single never married 205 40.20
 Separated / Divorced 49 9.61
 Married / Living together 250 49.02
 Widow 6 1.18
Number of sons
 0 252 49.41
 1 92 18.4
 ≥2 166 32.55
Time for interview and questionnaires (minutes)
 <15’ 256 48.9
 16-30 205 51.1
Kind of Contract
 Open-ended contract 380 74.71
 Fixed-term contract 130 25.49
Working Time
 Full-time 489 95.88
 Part-time 21 4.12
Professional Sector
 Management / Administrative 11 2.11
 Health without constant direct contact with Patients 313 60.19
 Health with constant direct contact with Patients 196 37.69
Professional Role
 Medical Doctor 192 36.78
 Nurse 207 39.81
 Healthcare Assistant 62 11.92
 Nurse coordinator 14 2.69
 Technician 33 6.35
 Social Coordinator or Management/Administration Staff 14 2.69
Net Salary (Euro)
 Less than 1,500 74 14.51
 1,500-2,500 247 48.43
 >2,500 189 37.06
Total Years at work
 ≤5 125 24.51
 6-10 65 12.75
 11-20 113 22.16
 21-30 141 27.65
 >30 66 12.94
Time spent to joint work from house
 ≤15’ 248 48.63
 16’-30’ 204 40.00
 >30’ 58 11.37
Paid overtime in a week
 None 260 49.7
 1-5h 176 33.7
 >5h 87 16.6