Table 1. Model parameters of the energy gap multiplier estimated through calibration, by sex, for Japanese adults aged 20 to 74 years, 1975 to 2015.

Parameters	Men	Women
Time effect
β1	0.042	0.180
β2	0.002	−0.019
β3	−0.017	0.016
β4	0.008	−0.009
Body mass index effect
β5	0.036	−0.011
β6	−0.080	−0.174
β7	0.389	0.004
Interaction effect
β8	0.019	0.028