Table 2.
Variables | 1940s | 1930s | 1908–1920s | |||||
---|---|---|---|---|---|---|---|---|
Model 1 | Model 2 | Model 3-1 | Model 3-2 | |||||
β | p | β | p | β | p | β | p | |
Intercept | 8.428 | 8.004 | 8.778 | 9.060 | ||||
Food preferences | ||||||||
Fruits | −0.204 | 0.087 | −0.070 | −0.091 | ||||
Vegetables | 0.874 | * | 0.548 | * | 0.305 | 0.365 | ||
Soft drinks and sugared fruit drinks | −0.287 | −0.220 | −0.340 | −0.307 | ||||
Activity preferences | ||||||||
Physical activities | ||||||||
Walking, Tai Chi | 0.395 | * | 0.187 | 0.304 | 0.218 | |||
Body building | −0.002 | −0.230 | 0.051 | 0.131 | ||||
Sports (ping pong, badminton, tennis, soccer, basketball, volleyball) | 0.520 | 0.002 | 0.349 | 0.363 | ||||
Sedentary activities | ||||||||
Reading | −0.174 | 0.433 | ** | −0.162 | −0.565 | |||
Watching TV | 0.153 | 0.416 | *** | 0.519 | * | 0.476 | * | |
Playing computer/video games, surfing the internet | −0.223 | −0.106 | 0.119 | 0.346 | ||||
Interaction effect | ||||||||
Reading × highest educational level | 0.374 | * |
Sex and highest educational level are taken as control variables in above models.
*p < 0.05; **p < 0.01; ***p < 0.001.