Table 3 Linear regression between depression, sleep duration and cognitive function.
Variables | Model 1 | Model 2 | ||
|---|---|---|---|---|
P value | β (95% CI) | P value | β (95% CI) | |
Age | < 0.001 | − 0.05 (− 0.06, − 0.05) | < 0.001 | − 0.05 (− 0.06, − 0.05) |
Gender | 0.026 | 0.15 (0.02, 0.29) | 0.199 | 0.09 (− 0.05, 0.22) |
Education | < 0.001 | 1.10 (1.05, 1.16) | < 0.001 | 1.09 (1.03, 1.14) |
Marital status (married) | 0.012 | 0.19 (0.04, 0.34) | 0.046 | 0.15 (0.01, 0.30) |
Rural | < 0.001 | − 0.80 (− 0.92, − 0.68) | < 0.001 | − 0.76 (− 0.88, 0.24) |
Smoking | 0.079 | 0.11 (− 0.01, 0.24) | 0.066 | 0.12 (− 0.01, 0.24) |
Drinking | 0.068 | − 0.10 (− 0.21, 0.01) | 0.039 | − 0.12 (− 0.23, − 0.01) |
BMI | < 0.001 | 0.01 (0.04, 0.06) | < 0.001 | 0.04 (0.03, 0.06) |
Hypertension | 0.608 | − 0.03 (− 0.15, 0.08) | 0.992 | − 0.01 (− 0.12, 0.11) |
dyslipidemia | 0.127 | 0.13 (− 0.10, 0.30) | 0.077 | 0.15 (− 0.02, 0.31) |
Diabetes or high blood sugar | 0.592 | 0.05 (− 0.15, 0.26) | 0.394 | 0.09 (− 0.11.0.29) |
Depression | NA | NA | < 0.001 | − 0.54 (− 0.65, − 0.43) |
Sleep duration | 0.001 | 0.04 (0.02, 0.07) | 0.468 | − 0.06 (− 0.22, 0.10) |
Sleep duration × depression | NA | NA | 0.350 | − 0.10 (− 0.31, 0.11) |
R2 | 0.288 | 0.298 | ||
