Table 2.

Cognitive performance and lipoprotein levels were significantly higher in the LD group than HD group after adjusting for the confounding factors.

Indexes	LD (n = 379)	HD (n = 59)	F (t)	p	Adjusted F	Adjusted p
Age (mean, SD)	35.27 (10.77)	31.98 (11.04)	2.17	0.03*	–	–
Gender (female%)	70.2	78.0	− 1.23	0.22	–	–
Education (years)	12.83 (3.19)	12.17 (3.85)	1.45	0.15	–	–
BMI (mean, SD)	22.04 (3.00)	22.44 (3.56)	− 0.94	0.35	–	–
Cognitive function
Immediate memory	83.95 ± 16.04	78.79 ± 16.91	5.279	0.022*	10.53	< 0.001**
Visual–spatial/constructional	78.51 ± 13.47	73.22 ± 12.17	7.984	0.005**	7.47	< 0.001**
Language	92.79 ± 15.03	89.96 ± 15.96	1.756	0.186	8.06	< 0.001**
Attention	106.16 ± 17.40	99.47 ± 20.13	7.103	0.008**	22.44	< 0.001**
Delayed memory	88.18 ± 10.68	82.58 ± 13.65	12.950	0.000**	5.92	< 0.001**
RBANS total score	86.54 ± 12.72	80.44 ± 14.63	11.243	0.001**	19.15	< 0.001**
Lipoprotein levels
CHO (mmol/L)	5.01 ± 1.01	4.85 ± 0.77	1.242	0.266	3.821	0.002**
TG (mmol/L)	1.62 ± 0.91	1.57 ± 0.88	0.173	0.678	15.649	< 0.001**
HDL (mmol/L)	1.48 ± 0.35	1.54 ± 0.32	1.192	0.276	7.606	< 0.001**
LDL (mmol/L)	2.81 ± 0.90	2.66 ± 0.61	1.680	0.196	3.654	0.003**

LD low depressive, HD high depressive.

Adjusted F, p values were controlled for age, gender, smoking and education years; *p < 0.05, **p < 0.01.