Figure 6

The thyroid cancer case per 105 children observed in the FSS as a function of the amount of air-dose rate in all 59 municipalities. The areas of the circles are proportional to the number of participants in each municipality to indicate the importance of the data points with larger circles. We show an exponential function by the solid curve obtained by a Poisson regression analysis: N = e0.075x+3.37 as shown in Table 3.