Table 2 Mean differences of psychological distress according to three socioeconomic position indicators

 University

REF

REF

 College

0.00 (−0.42; 0.43)

0.01 (−0.44; 0.47)

 High school degree

0.21 (−0.18; 0.61)

0.27 (−0.17; 0.71)

 Less than high school degree

0.56 (0.06; 1.05)*

0.32 (−0.33; 0.97)

 Senior and middle managers

REF

REF

 Professionals

−0.14 (−0.78; 0.51)

1.15 (0.27; 2.02)*

 Semi-professionals and technicians

0.32 (−0.44; 1.07)

0.46 (−0.68; 1.60)

 Overseers and first level managers

0.08 (−0.58; 0.74)

1.01 (0.27; 2.02)*

 Office workers

0.32 (−0.47; 1.11)

0.69 (−0.15; 1.54)

 Qualified workers

0.11 (−0.54; 0.75)

0.48 (−0.15; 1.48)

 Unskilled workers and maneuvers

0.47 (−0.13; 1.07)

1.08 (0.22; 1.93)*

 ≥100 000

REF

REF

 60 000–99 999

0.32 (−0.10; 0.74)

0.23 (−0.27; 0.72)

 40 000–59 999

0.62 (0.16; 1.07)**

0.51 (−0.03; 1.05)

 0–39 999

1.26 (0.79; 1.73)***

0.43 (−0.09; 0.95)