Table 4.
Cognitive function and correlation with age
| Male | Female | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 55–59 | 60–64 | 65–69 | 70+ | All | Correlation | 55–59 | 60–64 | 65–69 | 70+ | All | Correlation | |
| Efficiency (% correctly identified) | 82.1 (8.6) | 79.4 (10.1) | 74.9 (10.7) | 76.4 (12.9) | 78.4 (10.7) | –0.158 (0.039) | 84.2 (9.9) | 81.5 (11.4) | 76.9 (17.5) | 67 (13.3) | 80.3 (12.8) | –0.255 (0.023) |
| Speed (no. of letters scanned) | 360 (60.3) | 348.7 (85.2) | 332.9 (56.1) | 338.1 (73.6) | 345.7 (70) | NS | 382.5 (99.3) | 368.2 (84) | 393.6 (57.5) | 351 (86.1) | 376.1 (84.4)* | NS |
| No. of animals | 28.1 (10.1) | 26 (6) | 22.5 (7.4) | 23.8 (5.6) | 25.3 (7.7) | NS | 27.3 (6.1) | 27.5 (6.3) | 24.3 (6.8) | 23 (2.4) | 26.4 (6.1) | NS |
Values are mean (SD) except correlations which are r (P-value).
*
Significant difference between males and females (P < 0.05). NS, not significant.