Table 2.
Comparison of the baseline characteristics between the safe driving group, driving cessation group and risky driving group
| Safe drivinga (N=951) | Driving cessationb (N=66) | Risky drivingc (N=155) | Statistics* |
|||
|---|---|---|---|---|---|---|
| F or χ2 | p | post-hoc | ||||
| Age (years, mean±SD) | 66.79±4.88 | 71.18±6.19 | 66.92±5.24 | 23.83 | <0.001 | b>a, c |
| Education (years, mean±SD) | 12.32±4.37 | 10.92±5.32 | 11.10±4.58 | 7.32 | 0.001 | a>b, c |
| POMA (points, mean±SD) | 26.97±5.02 | 26.08±6.71 | 26.61±5.87 | 1.12 | 0.327 | - |
| GDS (points, mean±SD) | 7.64±5.80 | 9.03±6.35 | 8.17±5.70 | 2.18 | 0.114 | - |
| Driving duration (days, mean±SD) | 10640.41±3490.12 | 9038.14±4789.15 | 10735.03±3496.99 | 6.40 | 0.002 | a, c>b |
| MMSE (points, mean±SD) | 27.55±2.14 | 26.71±1.98 | 27.13±3.01 | 6.19 | 0.002 | a>c>b |
| WLMT (points, mean±SD) | 16.86±3.72 | 13.94±3.71 | 15.55±4.12 | 24.45 | <0.001 | a>c>b |
| WLRT (points, mean±SD) | 5.45±1.86 | 4.15±2.06 | 4.79±1.99 | 20.64 | <0.001 | a>c>b |
| WLRcT(points, mean±SD) | 8.81±1.54 | 7.91±2.15 | 8.49±1.86 | 11.19 | <0.001 | a>c>b |
| DRQ (points, mean±SD) | 20.53±8.20 | 20.86±10.97 | 19.60±8.97 | 0.89 | 0.411 | - |
| Cognitive disorder (%)† | 27.3 | 48.5 | 24.5 | 14.81 | 0.001 | b>a, c |
*
analysis of variance or chi square test with Bonferroni post-hoc comparisons,
†
dementia or mild cognitive impairment.
SD: standard deviation, POMA: Tinetti Performance Oriented Mobility Assessment, GDS: Geriatric Depression Scale, MMSE: Mini Mental Status Examination, WLMT: Word List Memory Test, WLRT: Word List Recall Test, WLRcT: Word List Recognition Test, DRQ: Driving Risk Questionnaire