Table 2.

The regression statistics for the U-shaped association between continuous BMI and depression.

Variable	Value	βa)	Standard Error	P
All		0.43	0.00	0.000
Gender	Male	0.38	0.00	0.000
	Female	0.26	0.00	0.000
Age	20–29	0.33	0.01	0.001
	30–39	0.53	0.01	0.000
	40–49	0.33	0.01	0.000
	50–59	0.53	0.01	0.000
	60–69	0.58	0.01	0.000
	70+	0.33	0.01	0.001

^a)We report the squared data; a positive value indicates that past a certain point of BMI, the level of depression increases (U-curve).