Personality Profiles Identify Depressive Symptoms over Ten Years? A Population-Based Study

Table 4

Regression coefficients of persistence predicting depressive symptoms.

	BDI_M 1997			BDI_M 2001			BDI_M 2007			BDI-II 2007
	𝐵 (SE)	𝑃	Δ𝑅^2	𝐵 (SE)	𝑃	Δ𝑅^2	𝐵 (SE)	𝑃	Δ𝑅^2	𝐵 (SE)	𝑃	Δ𝑅^2
Step 1
Persistence	−.11 (.04)	.010	.004	−.01 (.05)	.881	.000	.01 (.05)	.766	.000	.36 (.32)	.261	.001
Step 2
Persistence				.07 (.04)	.042	.001	.07 (.04)	.065	.002	.66 (.29)	.023	.003

Δ𝑅² = change in 𝑅² compared to the model with only control variables.
Step 1 = effect of persistence when sex and birth year were controlled. Step 2 = effect of persistence when sex, birth year, and mild depressive symptoms in 1997 were controlled.
BDI_M = mild depressive symptoms (see Section 2).
BDI-II = depressive symptoms measured by BDI-II.