Table 4.
Risk of cardiovascular disease at specific average weekly work hour durations compared to the risk at 45 hours of work per week, on average, for a minimum of 10 years, as estimated from cubic spline regression equation: Panel Study of Income Dynamics, 1986–2011.
| Weekly work hours | Multivariate modela,b
|
|
|---|---|---|
| RR | (95% C.I.) | |
| 45 | 1.00 | Referent |
| 50 | 1.03 | (0.96 – 1.10) |
| 55 | 1.16 | (1.02 – 1.32) |
| 60 | 1.35 | (1.07 – 1.72) |
| 65 | 1.52 | (1.10 – 2.10) |
| 70 | 1.74 | (1.14 – 2.64) |
| 75 | 2.03 | (1.19 – 3.48) |
a
All calculations take into account clustering and probability weighting.
b
Model adjusted for age, sex, race/ethnicity, and pay status (hourly vs. salaried).