Table 3 Fix effects of associations between sleep parameters and cognitive domains
| Â | Perceptual speed | Working memory | Episodic memory | C_MMSE |
|---|---|---|---|---|
Predictors | Coefficient (SE) | Coefficient (SE) | Coefficient (SE) | Coefficient (SE) |
Models: PSQI + Covariates | ||||
Time | -0.04 (0.02) | -0.02 (0.02) | 0.02 (0.03) | -0.07 (0.03)* |
PSQI | -0.01 (0.01)* | -0.02 (0.01)** | -0.02 (0.01)* | -0.01 (0.01) |
PSQI*time | 0.00 (0.00) | 0.01 (0.00)* | 0.00 (0.00) | 0.01 (0.00)* |
Models: Insomnia + Covariates | ||||
Time | -0.03 (0.02) | -0.03 (0.02) | 0.03 (0.03) | -0.09 (0.03)** |
Insomnia | -0.02 (0.00)*** | -0.01 (0.00) | -0.02 (0.00)*** | 0.00 (0.01) |
Insomnia*time | 0.00 (0.00)* | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
Models: Subjective sleep quality + Covariates | ||||
Time | -0.05 (0.03) | -0.14 (0.03)*** | -0.02 (0.04) | -0.14 (0.04)** |
Sleep quality | ||||
 Very good (ref) |  |  |  |  |
 Fairly good | 0.03 (0.05) | -0.12 (0.05)* | -0.06 (0.06) | 0.00 (0.07) |
 Fairly bad | 0.03 (0.06) | -0.14 (0.06)* | -0.04 (0.07) | -0.03 (0.07) |
 Very bad | -0.08 (0.08) | -0.24 (0.08)** | -0.37 (0.09)*** | -0.32 (0.10)** |
Sleep quality*time | ||||
 Very good (ref) |  |  |  |  |
 Fairly Good | 0.01 (0.02) | 0.12 (0.03)*** | 0.05 (0.03) | 0.06 (0.03) |
 Fairly bad | 0.00 (0.03) | 0.13 (0.03)*** | 0.04 (0.04) | 0.06 (0.04) |
 Very bad | 0.02 (0.04) | 0.16 (0.04)*** | 0.08 (0.05) | 0.10 (0.05)* |
Models: Sleep latency + Covariates | ||||
Time | -0.04 (0.02) | -0.04 (0.03) | 0.02 (0.03) | -0.09 (0.03)** |
Sleep latency | ||||
 <=15 min (ref) |  |  |  |  |
 15–30 min | 0.01 (0.04) | 0.05 (0.04) | 0.07 (0.04) | 0.06 (0.05) |
 30–60 min | -0.16 (0.05)*** | -0.08 (0.05) | -0.16 (0.05)** | -0.09 (0.06) |
 >60 min | -0.12 (0.05)* | -0.13 (0.06)* | -0.07 (0.06) | 0.01 (0.07) |
Sleep latency*time | ||||
 <=15 min (ref) |  |  |  |  |
 15–30 min | 0.00 (0.02) | 0.01 (0.02) | 0.00 (0.02) | 0.01 (0.03) |
 30–60 min | 0.01 (0.02) | 0.02 (0.03) | 0.01 (0.03) | 0.03 (0.03) |
 >60 min | -0.05 (0.03) | 0.04 (0.03) | -0.02 (0.04) | 0.01 (0.04) |
Models: Sleep efficiency + Covariates | ||||
Time | -0.05 (0.02)* | -0.04 (0.03) | 0.02 (0.03) | -0.09 (0.03)** |
Sleep efficiency | ||||
 >=85% (ref) |  |  |  |  |
 75–85% | -0.02 (0.04) | 0.01 (0.05) | 0.10 (0.05)* | 0.07 (0.06) |
 65–75% | 0.07 (0.05) | -0.04 (0.06) | 0.04 (0.06) | 0.14 (0.07)* |
 <65% | -0.11 (0.05)* | -0.05 (0.05) | -0.07 (0.06) | -0.10 (0.06) |
Sleep efficiency*time | ||||
 >=85% (ref) |  |  |  |  |
 75–85% | 0.00 (0.02) | 0.01 (0.02) | -0.02 (0.03) | 0.02 (0.03) |
 65–75% | -0.02 (0.03) | 0.03 (0.03) | 0.01 (0.04) | 0.04 (0.04) |
 < 65% | 0.05 (0.02)* | 0.01 (0.03) | 0.01 (0.03) | 0.04 (0.03) |
Models: Sleep duration + Covariates | ||||
Time | -0.05 (0.02)* | -0.04 (0.03) | 0.01 (0.03) | -0.10 (0.03)** |
Sleep duration | ||||
 >=7 h (ref) |  |  |  |  |
 6–7 h | 0.04 (0.04) | 0.06 (0.04) | 0.09 (0.05) | 0.07 (0.05) |
 5–6 h | -0.02 (0.05) | -0.04 (0.05) | -0.01 (0.05) | -0.04 (0.06) |
 <5 h | -0.08 (0.05) | -0.10 (0.05) | -0.10 (0.06) | -0.06 (0.07) |
Sleep duration*time | ||||
 >=7 h (ref) |  |  |  |  |
 6–7 h | 0.03 (0.02) | 0.03 (0.02) | 0.03 (0.03) | 0.06 (0.03)* |
 5–6 h | 0.01 (0.02) | 0.04 (0.03) | 0.04 (0.03) | 0.07 (0.03)* |
 <5 h | 0.03 (0.03) | 0.03 (0.03) | 0.05 (0.03) | 0.05 (0.03) |