Noise Health Close
 

Figure 1: Illustration of effect (%E) versus noise indicator. In case of a linear true exposure–effect curve, the simulated exposure-effect as observed in a field study would not be influenced. Only the method for the curve fit 1 or 2 shows a difference, as method 2 limits the observed curve 2 within 0% to 100%. In case of a nonlinear curve, an uncertainty in plus or minus direction on the noise indicator axis leads to a different increase than decrease on the effect axis. The resulting observed curves are illustrated in the following figures

Figure 1: Illustration of effect (%<i>E</i>) versus noise indicator. In case of a linear true exposure–effect curve, the simulated exposure-effect as observed in a field study would not be influenced. Only the method for the curve fit 1 or 2 shows a difference, as method 2 limits the observed curve 2 within 0% to 100%. In case of a nonlinear curve, an uncertainty in plus or minus direction on the noise indicator axis leads to a different increase than decrease on the effect axis. The resulting observed curves are illustrated in the following figures