Table 6. Adjusted effects of principal component analysis (PCA) diet components on quality of life (QoL), depression, and anxiety.

	Model 1: QoL			Model 2: Depression			Model 3: Anxiety
	Unstandardized Beta	SE Beta	Standardized Beta (β)	Unstandardized Beta	SE Beta	Standardized Beta (β)	Unstandardized Beta	SE Beta	Standardized Beta (β)
Step 1
Constant	3.72	0.52	0.08	3.58	3.36	-0.10	3.31	3.15	-0.25
Age	-0.05	0.03	-0.11*	0.26	0.17	0.09	0.16	0.16	0.05
Female gender†	0.20	0.12	0.21	-0.10	0.71	-0.02	1.31	0.67	0.23*
Other gender†	-0.52	0.42	-0.55	4.57	2.80	0.75	4.68	2.62	0.81
Asian ethnicity‡	-0.50	0.11	-0.52**	1.34	0.72	0.22	0.79	0.68	0.14
Other ethnicity‡	-0.02	0.16	-0.02	0.73	1.02	0.12	1.40	0.96	0.24
Step 2
Constant	3.55	0.54	-0.03	5.62	3.13	0.05	0.85	3.00	-0.12
Age	-0.03	0.03	-0.07	0.08	0.14	0.03	0.02	0.14	0.01
Female gender†	0.26	0.10	0.27*	-0.84	0.60	-0.14	0.63	0.58	0.11
Other gender†	-0.11	0.40	-0.11	1.10	2.36	0.18	1.49	2.26	0.26
Asian ethnicity‡	-0.40	0.10	-0.41**	0.56	0.62	0.09	0.35	0.60	0.06
Other ethnicity‡	0.07	0.14	0.07	0.04	0.86	0.01	0.76	0.82	0.13
Sleep	0.04	0.02	0.09	-0.58	0.15	-0.20**	-0.32	0.14	-0.12*
Physical activity	0.07	0.02	0.14*	-0.36	0.15	-0.12*	-0.19	0.14	-0.07
Stress	-0.30	0.06	-0.27**	2.16	0.34	0.31**	2.55	0.33	0.39**
Stressful life events	0.02	0.07	0.02	0.72	0.40	0.09	1.02	0.39	0.13*
Weight satisfaction	0.11	0.04	0.12*	-1.15	0.27	-0.20**	-0.54	0.26	-0.10*
Step 3
Constant	1.74	0.48	0.06	10.54	3.24	0.01	4.43	3.13	-0.15
Age	-0.01	0.02	-0.01	-0.01	0.14	-0.01	-0.04	0.14	-0.02
Female gender†	0.06	0.09	0.06	-0.30	0.60	-0.05	1.02	0.58	0.18
Other gender†	-0.22	0.33	-0.23	1.40	2.30	0.23	1.70	2.23	0.30
Asian ethnicity‡	-0.28	0.09	-0.30*	0.26	0.60	0.04	0.13	0.59	0.02
Other ethnicity‡	0.11	0.12	0.11	-0.06	0.83	-0.01	0.69	0.81	0.12
Sleep	0.01	0.02	0.03	-0.50	0.14	-0.17**	-0.19	0.14	-0.09
Physical activity	0.06	0.02	0.13*	-0.35	0.14	-0.11*	-0.19	0.14	-0.07
Stress	-0.17	0.05	-0.16**	1.84	0.34	0.27**	2.31	0.33	0.36**
Stressful life events	0.05	0.06	0.04	0.65	0.39	0.08	0.96	0.38	0.13*
Weight satisfaction	0.09	0.04	0.10*	-1.10	0.26	-0.19**	-0.50	0.26	-0.10*
Social support	0.46	0.04	0.51**	-1.26	0.28	-0.22**	-0.92	0.27	-0.17**
Step 4
Constant	1.77	0.49	0.07	10.30	3.22	-0.02	4.20	3.15	-0.17
Age	-0.01	0.02	-0.01	0.01	0.14	0.01	-0.04	0.14	-0.01
Female gender†	0.04	0.10	0.04	-0.02	0.63	-0.01	1.28	0.62	0.22*
Other gender†	-0.23	0.34	-0.24	1.41	2.26	0.23	1.73	2.22	0.30
Asian ethnicity‡	-0.28	0.09	-0.29*	0.23	0.60	0.04	0.08	0.60	0.01
Other ethnicity‡	0.11	0.12	0.12	0.02	0.82	0.01	0.72	0.80	0.12
Sleep	0.01	0.02	0.02	-0.49	0.14	-0.17**	-0.25	0.14	-0.09
Physical activity	0.06	0.02	0.12*	-0.25	0.15	-0.08	-0.10	0.15	-0.04
Stress	-0.17	0.05	-0.16**	1.82	0.33	0.27**	2.30	0.33	0.36**
Stressful life events	0.05	0.06	0.04	0.42	0.38	0.05	0.81	0.39	0.11*
Weight satisfaction	0.09	0.04	0.10*	-0.96	0.26	-0.17**	-0.42	0.25	-0.08
Social support	0.46	0.04	0.51**	-1.36	0.28	-0.23**	-0.97	0.27	-0.18**
PCA plant foods	0.04	0.04	0.05	-0.07	0.30	-0.01	-0.19	0.29	-0.03
PCA animal foods	0.01	0.04	0.01	-0.15	0.28	-0.02	-0.14	0.28	-0.02
PCA junk foods	-0.01	0.04	-0.01	1.26	0.27	0.21**	0.83	0.27	0.14*

^†Reference category: Male gender.

^‡Reference category: Caucasian ethnicity.

*p≤.05.

** p≤.001.

Note Model 1: Adjusted R² = .08 for Step 1; Δ adj R² = .13 for Step 2; Δ adj R² = .23 for Step 3; Δ adj R² = .00 for Step 4.

Note Model 2: Adjusted R² = .01 for Step 1; Δ adj R² = .30 for Step 2; Δ adj R² = .04 for Step 3; Δ adj R² = .04 for Step 4.

Note Model 3: Adjusted R² = .02 for Step 1; Δ adj R² = .27 for Step 2; Δ adj R² = .02 for Step 3; Δ adj R² = .01 for Step 4.