Table 1.
Demographic MoCA and rsfMRI data
| Variables | No. (%)/Mean±SD | Sig. | ||
|---|---|---|---|---|
|
| ||||
| COV (n=29) | CON (n=20) | |||
| Demographic features | Age (y) | 51.62±15.99 | 50.7±13.42 | 0.83 |
| Sex (male) | 20(69) | 12(60) | 0.52 | |
| Educational status | Elementary school | 19(65.5) | 9(45) | |
| Diploma degree | 9(45) | 4(20) | 0.29 | |
| University degree | 28(57.1) | 9(18.4) | ||
| MoCA | MoCA (total) | 20.41±6.07 | 28.31±3.42 | < 0.001* |
| Normal | 5 (17.2) | 16(80) | <0.001* | |
| Visual | 2.07±2.05 | 4.3±1.22 | < 0.001* | |
| Memory | 3.52±1.9 | 4.5±0.51 | 0.02* | |
| Attention | 2.37±1.68 | 5.8±0.52 | <0.001* | |
| Speech | 1.14±0.83 | 1.6±0.68 | 0.046* | |
| Abstraction | 1±0.92 | 1.75±0.64 | 0.003* | |
| Information | 5.44±0.74 | 5.95±0.22 | 0.005* | |
| Name | 2.38±0.73 | 2.9±0.31 | 0.004* | |
| fMRI | DMNpcc (IC00) | 0.85±0.5 | 2.29±0.59 | <0.001* |
| DAN (IC08) | 1.2±0.79 | 2.9±1.12 | <0.001* | |
| V1 dorsal L (IC14) | 1.29±0.37 | 0.48±0.28 | <0.001* | |
| BA25 (IC38) | 0.87±0.34 | 0.05±0.31 | <0.001* | |
Abbreviations: COV: COVID-19 group; CON: Control group; IC: Independent components; MoCA: Montreal cognitive assessment; rsfMRI: Resting-state functional magnetic resonance imaging; DMN: Default mode network; DAN: Dorsal attention network.