Supplementary files

Table S 1 Mean scores of the 15 psychosocial work factors according to age groups in 2006

20-30 y / 30-40 y / 40-50 y / +50 y / p
Score 2006 / 95% CI / Score 2006 / 95% CI / Score 2006 / 95% CI / Score 2006 / 95% CI
Men
Low decision latitude / 6.45 / [6.24 ; 6.66] / 6.80 / [6.69 ; 6.92] / 6.86 / [6.75 ; 6.97] / 6.87 / [6.73 ; 7.02] / **
Psychological demands / 8.62 / [8.30 ; 8.93] / 8.54 / [8.33 ; 8.75] / 8.61 / [8.41 ; 8.81] / 8.73 / [8.47 ; 8.99] / ns
Low social support / 3.69 / [3.61 ; 3.77] / 3.65 / [3.59 ; 3.70] / 3.69 / [3.65 ; 3.74] / 3.70 / [3.64 ; 3.76] / ns
Low reward / 2.77 / [2.64 ; 2.90] / 2.96 / [2.88 ; 3.05] / 2.91 / [2.83 ; 2.99] / 3.08 / [2.99 ; 3.18] / **
Overcommitment / 3.03 / [2.90 ; 3.16] / 2.96 / [2.88 ; 3.05] / 2.94 / [2.86 ; 3.01] / 2.88 / [2.78 ; 2.98] / ns
Long working hours / 3.42 / [3.31 ; 3.53] / 3.20 / [3.12 ; 3.29] / 3.17 / [3.09 ; 3.25] / 3.05 / [2.93 ; 3.16] / ***
Low predictability / 3.28 / [3.15 ; 3.42] / 3.35 / [3.27 ; 3.44] / 3.40 / [3.32 ; 3.47] / 3.47 / [3.39 ; 3.56] / ns
Night work / 3.40 / [3.27 ; 3.54] / 3.49 / [3.41 ; 3.57] / 3.60 / [3.55 ; 3.66] / 3.70 / [3.64 ; 3.77] / ***
Shift work / 3.39 / [3.24 ; 3.54] / 3.48 / [3.38 ; 3.57] / 3.55 / [3.48 ; 3.63] / 3.74 / [3.67 ; 3.81] / ***
Emotional demands / 2.91 / [2.75 ; 3.06] / 2.90 / [2.80 ; 3.00] / 2.93 / [2.84 ; 3.02] / 2.84 / [2.73 ; 2.95] / ns
Role conflict / 3.31 / [3.21 ; 3.42] / 3.34 / [3.27 ; 3.40] / 3.36 / [3.30 ; 3.42] / 3.40 / [3.32 ; 3.49] / ns
Ethical conflict / 3.58 / [3.49 ; 3.66] / 3.53 / [3.47 ; 3.58] / 3.55 / [3.50 ; 3.59] / 3.60 / [3.54 ; 3.66] / ns
Tensions with the public / 3.44 / [3.34 ; 3.54] / 3.38 / [3.31 ; 3.45] / 3.46 / [3.40 ; 3.51] / 3.56 / [3.50 ; 3.62] / **
Job insecurity / 3.62 / [3.52 ; 3.71] / 3.64 / [3.58 ; 3.70] / 3.66 / [3.61 ; 3.71] / 3.68 / [3.60 ; 3.75] / ns
Work-life imbalance / 3.40 / [3.27 ; 3.53] / 3.39 / [3.32 ; 3.46] / 3.46 / [3.40 ; 3.53] / 3.56 / [3.48 ; 3.63] / *
Women
Low decision latitude / 6.75 / [6.57 ; 6.93] / 6.80 / [6.68 ; 6.91] / 6.79 / [6.69 ; 6.90] / 6.87 / [6.74 ; 6.99] / ns
Psychological demands / 8.78 / [8.50 ; 9.06] / 8.83 / [8.61 ; 9.06] / 8.97 / [8.77 ; 9.16] / 9.05 / [8.81 ; 9.30] / ns
Low social support / 3.63 / [3.55 ; 3.71] / 3.71 / [3.66 ; 3.76] / 3.72 / [3.67 ; 3.76] / 3.69 / [3.63 ; 3.75] / ns
Low reward / 2.77 / [2.64 ; 2.90] / 2.89 / [2.81 ; 2.98] / 2.99 / [2.92 ; 3.06] / 2.99 / [2.90 ; 3.09] / *
Overcommitment / 2.86 / [2.74 ; 2.97] / 2.89 / [2.81 ; 2.97] / 2.98 / [2.90 ; 3.05] / 2.93 / [2.83 ; 3.02] / ns
Long working hours / 3.70 / [3.61 ; 3.79] / 3.63 / [3.56 ; 3.70] / 3.62 / [3.56 ; 3.68] / 3.58 / [3.51 ; 3.65] / ns
Low predictability / 3.34 / [3.21 ; 3.48] / 3.60 / [3.54 ; 3.66] / 3.65 / [3.60 ; 3.71] / 3.64 / [3.56 ; 3.71] / ***
Night work / 3.67 / [3.56 ; 3.79] / 3.82 / [3.77 ; 3.86] / 3.85 / [3.81 ; 3.88] / 3.85 / [3.80 ; 3.90] / *
Shift work / 3.31 / [3.15 ; 3.46] / 3.59 / [3.50 ; 3.67] / 3.67 / [3.61 ; 3.73] / 3.72 / [3.64 ; 3.80] / ***
Emotional demands / 2.53 / [2.38 ; 2.67] / 2.49 / [2.39 ; 2.59] / 2.61 / [2.52 ; 2.69] / 2.52 / [2.41 ; 2.63] / ns
Role conflict / 3.33 / [3.23 ; 3.43] / 3.32 / [3.25 ; 3.39] / 3.31 / [3.25 ; 3.38] / 3.39 / [3.32 ; 3.46] / ns
Ethical conflict / 3.52 / [3.43 ; 3.60] / 3.65 / [3.60 ; 3.70] / 3.64 / [3.60 ; 3.68] / 3.65 / [3.59 ; 3.71] / ns
Tensions with the public / 3.28 / [3.18 ; 3.37] / 3.38 / [3.32 ; 3.44] / 3.42 / [3.36 ; 3.47] / 3.43 / [3.36 ; 3.49] / ns
Job insecurity / 3.71 / [3.64 ; 3.79] / 3.63 / [3.57 ; 3.69] / 3.67 / [3.62 ; 3.72] / 3.70 / [3.64 ; 3.76] / ns
Work-life imbalance / 3.42 / [3.29 ; 3.54] / 3.39 / [3.33 ; 3.45] / 3.53 / [3.48 ; 3.59] / 3.66 / [3.60 ; 3.73] / ***
The lower the score, the higher the exposure
*p<0.05 ; **p<0.01 ; ***p<0.001

Table S 2 Mean scores of the 15 psychosocial work factors according to occupation in 2006

Managers/professionals / Associate professionals / Clerks / Manual workers / p
Score 2006 / 95% CI / Score 2006 / 95% CI / Score 2006 / 95% CI / Score 2006 / 95% CI
Men
Low decision latitude / 7.20 / [7.06 ; 7.33] / 6.86 / [6.74 ; 6.98] / 6.66 / [6.49 ; 6.83] / 6.54 / [6.42 ; 6.67] / ***
Psychological demands / 7.80 / [7.55 ; 8.05] / 8.11 / [7.89 ; 8.33] / 8.80 / [8.50 ; 9.09] / 9.29 / [9.10 ; 9.48] / ***
Low social support / 3.66 / [3.60 ; 3.71] / 3.68 / [3.63 ; 3.73] / 3.68 / [3.61 ; 3.75] / 3.68 / [3.63 ; 3.73] / ns
Low reward / 3.14 / [3.04 ; 3.23] / 2.92 / [2.83 ; 3.00] / 2.80 / [2.68 ; 2.91] / 2.92 / [2.84 ; 3.00] / ***
Overcommitment / 2.61 / [2.50 ; 2.71] / 2.83 / [2.74 ; 2.92] / 2.96 / [2.85 ; 3.06] / 3.23 / [3.15 ; 3.31] / ***
Long working hours / 2.90 / [2.78 ; 3.02] / 3.25 / [3.16 ; 3.34] / 2.92 / [2.80 ; 3.04] / 3.52 / [3.45 ; 3.59] / ***
Low predictability / 3.30 / [3.19 ; 3.41] / 3.41 / [3.32 ; 3.49] / 3.27 / [3.16 ; 3.37] / 3.46 / [3.38 ; 3.54] / *
Night work / 3.81 / [3.75 ; 3.86] / 3.70 / [3.64 ; 3.77] / 3.39 / [3.28 ; 3.50] / 3.39 / [3.31 ; 3.47] / ***
Shift work / 3.93 / [3.89 ; 3.97] / 3.68 / [3.61 ; 3.76] / 3.39 / [3.26 ; 3.53] / 3.30 / [3.21 ; 3.39] / ***
Emotional demands / 2.59 / [2.46 ; 2.71] / 2.78 / [2.67 ; 2.88] / 2.69 / [2.57 ; 2.82] / 3.31 / [3.23 ; 3.39] / ***
Role conflict / 3.36 / [3.27 ; 3.44] / 3.27 / [3.20 ; 3.34] / 3.36 / [3.27 ; 3.44] / 3.41 / [3.35 ; 3.47] / *
Ethical conflict / 3.56 / [3.50 ; 3.62] / 3.49 / [3.42 ; 3.55] / 3.51 / [3.44 ; 3.58] / 3.64 / [3.59 ; 3.68] / ***
Tensions with the public / 3.28 / [3.20 ; 3.36] / 3.39 / [3.33 ; 3.46] / 3.27 / [3.18 ; 3.36] / 3.70 / [3.65 ; 3.74] / ***
Job insecurity / 3.67 / [3.60 ; 3.74] / 3.65 / [3.59 ; 3.72] / 3.73 / [3.67 ; 3.80] / 3.57 / [3.51 ; 3.63] / **
Work-life imbalance / 3.26 / [3.17 ; 3.36] / 3.43 / [3.36 ; 3.51] / 3.35 / [3.24 ; 3.45] / 3.62 / [3.57 ; 3.68] / ***
Women
Low decision latitude / 7.02 / [6.88 ; 7.16] / 6.97 / [6.87 ; 7.08] / 6.79 / [6.70 ; 6.88] / 6.10 / [5.82 ; 6.38] / ***
Psychological demands / 7.93 / [7.63 ; 8.23] / 8.32 / [8.10 ; 8.53] / 9.38 / [9.23 ; 9.54] / 9.16 / [8.70 ; 9.62] / ***
Low social support / 3.68 / [3.62 ; 3.75] / 3.70 / [3.65 ; 3.75] / 3.71 / [3.67 ; 3.75] / 3.61 / [3.48 ; 3.75] / ns
Low reward / 3.07 / [2.96 ; 3.18] / 2.92 / [2.84 ; 3.01] / 2.92 / [2.85 ; 2.98] / 2.75 / [2.56 ; 2.94] / *
Overcommitment / 2.47 / [2.36 ; 2.59] / 2.68 / [2.60 ; 2.76] / 3.10 / [3.04 ; 3.16] / 3.14 / [2.97 ; 3.32] / ***
Long working hours / 3.25 / [3.12 ; 3.37] / 3.61 / [3.55 ; 3.68] / 3.70 / [3.65 ; 3.74] / 3.78 / [3.66 ; 3.90] / ***
Low predictability / 3.52 / [3.43 ; 3.62] / 3.56 / [3.49 ; 3.63] / 3.59 / [3.54 ; 3.65] / 3.58 / [3.39 ; 3.76] / ns
Night work / 3.89 / [3.84 ; 3.93] / 3.76 / [3.70 ; 3.82] / 3.85 / [3.81 ; 3.88] / 3.63 / [3.45 ; 3.80] / ***
Shift work / 3.96 / [3.93 ; 4.00] / 3.55 / [3.46 ; 3.63] / 3.61 / [3.55 ; 3.67] / 3.13 / [2.91 ; 3.35] / ***
Emotional demands / 2.30 / [2.16 ; 2.43] / 2.36 / [2.27 ; 2.46] / 2.59 / [2.52 ; 2.67] / 3.05 / [2.87 ; 3.24] / ***
Role conflict / 3.29 / [3.20 ; 3.38] / 3.26 / [3.19 ; 3.32] / 3.41 / [3.36 ; 3.46] / 3.22 / [3.05 ; 3.38] / ***
Ethical conflict / 3.63 / [3.55 ; 3.71] / 3.56 / [3.50 ; 3.61] / 3.65 / [3.61 ; 3.69] / 3.62 / [3.51 ; 3.74] / *
Tensions with the public / 3.30 / [3.21 ; 3.38] / 3.17 / [3.10 ; 3.24] / 3.43 / [3.38 ; 3.47] / 3.80 / [3.73 ; 3.88] / ***
Job insecurity / 3.74 / [3.67 ; 3.81] / 3.74 / [3.69 ; 3.79] / 3.68 / [3.64 ; 3.72] / 3.37 / [3.22 ; 3.51] / ***
Work-life imbalance / 3.23 / [3.12 ; 3.34] / 3.40 / [3.33 ; 3.46] / 3.59 / [3.55 ; 3.64] / 3.59 / [3.42 ; 3.76] / ***
The lower the score, the higher the exposure
*p<0.05 ; **p<0.01 ; ***p<0.001

Table S 3 Mean scores of the 15 psychosocial work factors according to public/private sector in 2006

Public / Private / p
Score 2006 / 95% CI / Score 2006 / 95% CI
Men
Low decision latitude / 6.76 / [6.62 ; 6.91] / 6.77 / [6.69 ; 6.85] / ns
Psychological demands / 9.22 / [8.97 ; 9.46] / 8.46 / [8.33 ; 8.60] / ***
Low social support / 3.66 / [3.60 ; 3.71] / 3.68 / [3.65 ; 3.72] / ns
Low reward / 2.89 / [2.78 ; 2.99] / 2.94 / [2.88 ; 2.99] / ns
Overcommitment / 2.95 / [2.86 ; 3.05] / 2.95 / [2.90 ; 3.01] / ns
Long working hours / 3.48 / [3.40 ; 3.57] / 3.14 / [3.08 ; 3.20] / ***
Low predictability / 3.47 / [3.38 ; 3.57] / 3.35 / [3.30 ; 3.40] / *
Night work / 3.57 / [3.47 ; 3.66] / 3.54 / [3.49 ; 3.59] / ns
Shift work / 3.48 / [3.35 ; 3.60] / 3.55 / [3.49 ; 3.60] / ns
Emotional demands / 2.77 / [2.65 ; 2.89] / 2.93 / [2.87 ; 2.99] / *
Role conflict / 3.21 / [3.12 ; 3.30] / 3.38 / [3.34 ; 3.42] / ***
Ethical conflict / 3.46 / [3.39 ; 3.54] / 3.58 / [3.54 ; 3.61] / **
Tensions with the public / 3.22 / [3.13 ; 3.31] / 3.50 / [3.46 ; 3.54] / ***
Job insecurity / 3.87 / [3.83 ; 3.92] / 3.59 / [3.56 ; 3.63] / ***
Work-life imbalance / 3.53 / [3.45 ; 3.62] / 3.43 / [3.38 ; 3.47] / *
Women
Low decision latitude / 6.80 / [6.70 ; 6.90] / 6.80 / [6.72 ; 6.88] / ns
Psychological demands / 8.75 / [8.56 ; 8.93] / 8.98 / [8.84 ; 9.13] / ns
Low social support / 3.65 / [3.60 ; 3.70] / 3.71 / [3.68 ; 3.74] / *
Low reward / 2.86 / [2.78 ; 2.93] / 2.95 / [2.89 ; 3.00] / ns
Overcommitment / 2.83 / [2.75 ; 2.90] / 2.96 / [2.91 ; 3.01] / **
Long working hours / 3.69 / [3.64 ; 3.74] / 3.60 / [3.56 ; 3.65] / **
Low predictability / 3.68 / [3.63 ; 3.73] / 3.53 / [3.48 ; 3.58] / ***
Night work / 3.76 / [3.71 ; 3.81] / 3.82 / [3.78 ; 3.86] / ns
Shift work / 3.41 / [3.32 ; 3.50] / 3.67 / [3.62 ; 3.72] / ***
Emotional demands / 2.43 / [2.34 ; 2.52] / 2.59 / [2.53 ; 2.66] / **
Role conflict / 3.19 / [3.13 ; 3.25] / 3.40 / [3.35 ; 3.44] / ***
Ethical conflict / 3.57 / [3.52 ; 3.62] / 3.64 / [3.61 ; 3.68] / *
Tensions with the public / 3.22 / [3.16 ; 3.28] / 3.45 / [3.41 ; 3.49] / ***
Job insecurity / 3.83 / [3.79 ; 3.87] / 3.60 / [3.56 ; 3.64] / ***
Work-life imbalance / 3.52 / [3.46 ; 3.58] / 3.49 / [3.44 ; 3.53] / ns
The lower the score, the higher the exposure
*p<0.05 ; **p<0.01 ; ***p<0.001

Table S 4 Mean scores of the 15 psychosocial work factors according to work contract in 2006

Temporary contract / Permanent contract / p
Score 2006 / 95% CI / Score 2006 / 95% CI
Men
Low decision latitude / 6.47 / [6.24 ; 6.71] / 6.79 / [6.72 ; 6.86] / *
Psychological demands / 8.94 / [8.58 ; 9.30] / 8.58 / [8.46 ; 8.71] / ns
Low social support / 3.62 / [3.54 ; 3.71] / 3.68 / [3.65 ; 3.71] / ns
Low reward / 2.93 / [2.80 ; 3.07] / 2.92 / [2.87 ; 2.97] / ns
Overcommitment / 3.12 / [2.99 ; 3.25] / 2.94 / [2.89 ; 2.99] / *
Long working hours / 3.59 / [3.49 ; 3.69] / 3.19 / [3.14 ; 3.24] / ***
Low predictability / 3.41 / [3.27 ; 3.54] / 3.38 / [3.33 ; 3.43] / ns
Night work / 3.45 / [3.32 ; 3.58] / 3.55 / [3.51 ; 3.60] / ns
Shift work / 3.24 / [3.05 ; 3.43] / 3.56 / [3.51 ; 3.61] / **
Emotional demands / 3.02 / [2.86 ; 3.19] / 2.88 / [2.82 ; 2.94] / ns
Role conflict / 3.28 / [3.16 ; 3.39] / 3.35 / [3.31 ; 3.39] / ns
Ethical conflict / 3.62 / [3.53 ; 3.71] / 3.55 / [3.52 ; 3.58] / ns
Tensions with the public / 3.48 / [3.38 ; 3.59] / 3.44 / [3.41 ; 3.48] / ns
Job insecurity / 3.41 / [3.27 ; 3.54] / 3.67 / [3.64 ; 3.71] / ***
Work-life imbalance / 3.55 / [3.44 ; 3.67] / 3.44 / [3.40 ; 3.48] / ns
Women
Low decision latitude / 6.43 / [6.21 ; 6.65] / 6.86 / [6.80 ; 6.92] / ***
Psychological demands / 9.38 / [9.01 ; 9.74] / 8.83 / [8.71 ; 8.95] / **
Low social support / 3.67 / [3.59 ; 3.76] / 3.70 / [3.67 ; 3.72] / ns
Low reward / 2.90 / [2.77 ; 3.03] / 2.92 / [2.87 ; 2.97] / ns
Overcommitment / 3.03 / [2.90 ; 3.17] / 2.91 / [2.86 ; 2.95] / ns
Long working hours / 3.83 / [3.77 ; 3.88] / 3.61 / [3.57 ; 3.65] / ***
Low predictability / 3.60 / [3.49 ; 3.70] / 3.58 / [3.53 ; 3.62] / ns
Night work / 3.74 / [3.66 ; 3.83] / 3.82 / [3.78 ; 3.85] / ns
Shift work / 3.50 / [3.37 ; 3.64] / 3.60 / [3.55 ; 3.65] / ns
Emotional demands / 2.61 / [2.46 ; 2.76] / 2.53 / [2.47 ; 2.59] / ns
Role conflict / 3.37 / [3.25 ; 3.49] / 3.32 / [3.29 ; 3.36] / ns
Ethical conflict / 3.68 / [3.60 ; 3.75] / 3.61 / [3.58 ; 3.64] / ns
Tensions with the public / 3.44 / [3.36 ; 3.53] / 3.37 / [3.33 ; 3.41] / ns
Job insecurity / 3.47 / [3.35 ; 3.58] / 3.71 / [3.68 ; 3.74] / ***
Work-life imbalance / 3.51 / [3.42 ; 3.60] / 3.49 / [3.45 ; 3.53] / ns
The lower the score, the higher the exposure
*p<0.05 ; **p<0.01 ; ***p<0.001

Table S 5 Mean scores of the 15 psychosocial work factors according to self-employed/employee status in 2006

Self-employed workers / Employees / p
Score 2006 / 95% CI / Score 2006 / 95% CI
Men
Low decision latitude / 7.35 / [7.18 ; 7.53] / 6.69 / [6.62 ; 6.77] / ***
Psychological demands / 7.98 / [7.57 ; 8.39] / 8.66 / [8.54 ; 8.79] / **
Low social support / 3.85 / [3.79 ; 3.90] / 3.66 / [3.63 ; 3.69] / ***
Low reward / 3.07 / [2.94 ; 3.20] / 2.91 / [2.86 ; 2.96] / *
Overcommitment / 2.58 / [2.42 ; 2.73] / 3.00 / [2.95 ; 3.05] / ***
Long working hours / 1.92 / [1.76 ; 2.08] / 3.37 / [3.32 ; 3.41] / ***
Low predictability / 2.97 / [2.80 ; 3.14] / 3.42 / [3.38 ; 3.47] / ***
Night work / 3.56 / [3.45 ; 3.67] / 3.54 / [3.50 ; 3.59] / ns
Shift work / 3.95 / [3.91 ; 3.99] / 3.48 / [3.43 ; 3.53] / ***
Emotional demands / 2.67 / [2.50 ; 2.84] / 2.93 / [2.87 ; 2.99] / **
Role conflict / 3.71 / [3.63 ; 3.79] / 3.31 / [3.26 ; 3.35] / ***
Ethical conflict / 3.66 / [3.58 ; 3.74] / 3.54 / [3.51 ; 3.57] / **
Tensions with the public / 3.45 / [3.36 ; 3.54] / 3.45 / [3.41 ; 3.48] / ns
Job insecurity / 3.61 / [3.48 ; 3.73] / 3.65 / [3.62 ; 3.69] / ns
Work-life imbalance / 3.11 / [2.98 ; 3.24] / 3.49 / [3.45 ; 3.53] / ***
Women
Low decision latitude / 7.51 / [7.37 ; 7.65] / 6.75 / [6.68 ; 6.81] / ***
Psychological demands / 8.82 / [8.37 ; 9.26] / 8.91 / [8.79 ; 9.03] / ns
Low social support / 3.80 / [3.72 ; 3.88] / 3.69 / [3.66 ; 3.71] / *
Low reward / 3.33 / [3.20 ; 3.47] / 2.89 / [2.84 ; 2.93] / ***
Overcommitment / 2.54 / [2.38 ; 2.70] / 2.95 / [2.90 ; 3.00] / ***
Long working hours / 2.68 / [2.49 ; 2.87] / 3.70 / [3.67 ; 3.73] / ***
Low predictability / 3.17 / [2.99 ; 3.34] / 3.61 / [3.57 ; 3.65] / ***
Night work / 3.73 / [3.62 ; 3.83] / 3.81 / [3.78 ; 3.84] / ns
Shift work / 3.94 / [3.89 ; 3.99] / 3.56 / [3.51 ; 3.61] / ***
Emotional demands / 2.25 / [2.06 ; 2.44] / 2.56 / [2.51 ; 2.62] / **
Role conflict / 3.62 / [3.52 ; 3.72] / 3.31 / [3.27 ; 3.35] / ***
Ethical conflict / 3.78 / [3.70 ; 3.86] / 3.61 / [3.58 ; 3.64] / ***
Tensions with the public / 3.37 / [3.24 ; 3.51] / 3.38 / [3.35 ; 3.42] / ns
Job insecurity / 3.65 / [3.54 ; 3.76] / 3.67 / [3.64 ; 3.71] / ns
Work-life imbalance / 3.36 / [3.23 ; 3.49] / 3.51 / [3.47 ; 3.55] / *
The lower the score, the higher the exposure
*p<0.05 ; **p<0.01 ; ***p<0.001

Table S 6 Differential changes according to work contract in 2006: results from linear regression models adjusted for age and score of factor in 2006

Temporary / Permanent (ref.) / pc / pd
Mean score 2006a / Betab / 95% CI / Mean score 2006a
Women
Low decision latitude / 6.43 / -0.23* / [-0.43 ; -0.02] / 6.86 / *** / *
Role conflict / 3.37 / -0.13* / [-0.25 ; -0.01] / 3.32 / ns / *
a Mean score in 2006 according to work contract, the lower the score, the higher the exposure
b Difference of change in score compared to permanent contract from linear regression model adjusted for age and score of factor in 2006; Positive beta meant improvement of the factor, negative beta deterioration of the factor compared to reference group
c Global p-value for differences in score in 2006 according to work contract
d Global p-value for differences in change in score between 2006 and 2010 according to work contract
*p<0.05 ; **p<0.01 ; ***p<0.001
Only the factors showing significant changes according to work contract are presented

Table S 7 Differential changes according to self-employed/employee status in 2006: results from linear regression models adjusted for age and score of factor in 2006

Self-employed workers / Employees (ref.) / pc / pd
Mean score 2006a / Betab / 95% CI / Mean score 2006a
Men
Low decision latitude / 7.35 / 0.26** / [0.07 ; 0.44] / 6.69 / *** / **
Psychological demands / 7.98 / -0.71** / [-1.19 ; -0.23] / 8.66 / ** / **
Low social support / 3.85 / 0.22*** / [0.15 ; 0.28] / 3.66 / *** / ***
Overcommitment / 2.58 / -0.24*** / [-0.37 ; -0.12] / 3.00 / *** / ***
Long working hours / 1.92 / -0.38*** / [-0.55 ; -0.21] / 3.37 / *** / ***
Low predictability / 2.97 / -0.23** / [-0.39 ; -0.07] / 3.42 / *** / **
Shift work / 3.95 / 0.16*** / [0.11 ; 0.22] / 3.48 / *** / ***
Role conflict / 3.71 / 0.15** / [0.05 ; 0.25] / 3.31 / *** / **
Work-life imbalance / 3.11 / -0.15* / [-0.28 ; -0.02] / 3.49 / *** / *
Women
Low decision latitude / 7.51 / 0.39*** / [0.22 ; 0.55] / 6.75 / *** / ***
Psychological demands / 8.82 / 0.46* / [0.08 ; 0.84] / 8.91 / ns / *
Long working hours / 2.68 / -0.31*** / [-0.47 ; -0.15] / 3.70 / *** / ***
Low predictability / 3.17 / -0.16* / [-0.30 ; -0.02] / 3.61 / *** / *
Shift work / 3.94 / 0.13*** / [0.07 ; 0.18] / 3.56 / *** / ***
Emotional demands / 2.25 / -0.21* / [-0.38 ; -0.03] / 2.56 / ** / *
Role conflict / 3.62 / 0.25*** / [0.13 ; 0.36] / 3.31 / *** / ***
Ethical conflict / 3.78 / 0.12** / [0.04 ; 0.20] / 3.61 / *** / **
a Mean score in 2006 according to self-employed/employee status group, the lower the score, the higher the exposure
b Difference of change in score compared to employees from linear regression model adjusted for age and score of factor in 2006; Positive beta meant improvement of the factor, negative beta deterioration of the factor compared to reference group
c Global p-value for differences in score in 2006 according to self-employed/employee status
d Global p-value for differences in change in score between 2006 and 2010 according to self-employed/employee status
*p<0.05 ; **p<0.01 ; ***p<0.001
Only the factors showing significant changes according to self-employed/employee status are presented