Research Article
Estimating and Interpreting Effects from Nonlinear Exposure-Response Curves in Occupational Cohorts Using Truncated Power Basis Expansions and Penalized Splines
Figure 2
Linear spline (a) and cubic spline (b) basis functions using knots at quartiles of the case exposures (k1 = 3.0, k2 = 5.5, and k3 = 8.3).
(a) |
(b) |