Table 4. Measures of work stress and cortisol secretion measures in all participants at Whitehall II Phase 7, adjusted for age, gender, ethnicity, time of waking and time since waking.
CAR | Slope | |||||||
N | Coef. | CI | P | N | Coef. | CI | P | |
JDC model | ||||||||
Job strain | 1988 | 0.05 | (−0.36,0.82) | 0.82 | 1926 | 0.0003 | (−0.0005,0.0012) | 0.36 |
control | 1988 | −0.10 | (−0.61,0.42) | 0.71 | 1926 | 0.0002 | (−0.0009,0.0012) | 0.71 |
demand | 2003 | −0.01 | (−0.53,0.52) | 0.98 | 1940 | 0.0008 | (−0.0003,0.0019) | 0.14 |
Support | 1922 | 0.14 | (−0.37,0.64) | 0.61 | 1863 | −0.0004 | (−0.0014,0.0007) | 0.49 |
ERI model | ||||||||
ERI ratio | 1986 | −0.33 | (−1.56,0.90) | 0.61 | 1922 | 0.0023 | (−0.0002,0.0049) | 0.05 |
effort | 1988 | 0.11 | (−0.41,0.63) | 0.67 | 1934 | 0.0007 | (−0.0003,0.0018) | 0.18 |
reward | 1990 | 0.26 | (−0.26,0.78) | 0.33 | 1927 | −0.0011 | (−0.002,0.00001) | 0.04 |
CAR, cortisol awakening response; Slope, cortisol decline over the day
Data were presented by 1-Standard Deviation increase of each dimension of JDC/ERI models. Job strain was calculated by subtracting control score from demand score; ERI ratio was calculated by the formula effort/reward*0.5 and logarithm transformed.