Table 6.
Ranking of the top ten command and copy clocks variables - All dementia patients versus HC participants
| Variable | All (n=231) | Dementia (n=56) | HC (n=175) | t-value | df | p-value |
|---|---|---|---|---|---|---|
| 1. Mean pressure (command) | 95.16 (32.23) | 52.14 (40.95) | 108.93 (7.54) | 10.322 | 56.197 | <0.0001* D<HC |
| 2. Standard deviation of pressure (command) | 23.27 (5.87) | 19.38 (9.00) | 24.51 (3.68) | 4.1556 | 60.976 | 0.0001* D<HC |
| 3. Mean pressure (copy) | 97.61 (29.99) | 57.31 (38.02) | 110.51 (6.46) | 10.425 | 56.021 | <0.0001* D<HC |
| 4. Average pressure/velocity (command) | 3.03 (1.82) | 2.90 (3.02) | 3.07 (1.21) | 0.42607 | 60.738 | 0.6716 ns |
| 5. Average pressure/velocity (copy) | 3.33 (2.03) | 3.30 (3.51) | 3.35 (1.24) | 0.10497 | 59.47 | 0.9168 ns |
| 6. Post clockface latency (PCFL) (copy) | 1.50 (1.48) | 2.23 (2.57) | 1.27 (0.76) | −2.7643 | 58.095 | 0.0076 D>HC |
| 7. Minute hand difference from ideal angle (copy) | −2.19 (12.30) | −0.34 (20.96) | −2.79 (7.73) | −.85617 | 59.861 | 0.3953 ns |
| 8. Hour hand distance from center (copy) | 3.26 (2.51) | 3.98 (2.58) | 3.04 (2.45) | −2.4081 | 88.833 | 0.0181 D>HC |
| 9. Total completion time (copy) | 30.86 (14.43) | 42.50 (21.68) | 27.14 (8.32) | −5.1806 | 60.265 | <0.0001* D>HC |
| 10. Minute hand distance from center (command) | 4.51 (4.56) | 6.12 (4.97) | 4.03 (4.33) | −2.7389 | 75.445 | 0.0077 D>HC |
means and standard deviations;
*
signifies variables that remain significant after Bonferroni correction