Table 1.
Description of the usual IADL score and the C-IADL score according to the characteristics of the study population (n = 2391)
| n or mean | % or [95%CI] |
Usual IADL | p value | C-IADL | p value | |
|---|---|---|---|---|---|---|
| Total | 4.25 | 4.61 | ||||
| Age (mean, 95% CI) | 79.89 | [79.58–80.20] | < 0.001 | < 0.001 | ||
| Gender | < 0.001 | < 0.001 | ||||
| Men | 917 | 38.35 | 3.49 | 4.26 | ||
| Women | 1474 | 61.65 | 4.72 | 4.82 | ||
| Marital status | < 0.001 | < 0.001 | ||||
| Single | 99 | 4.14 | 5.39 | 5.47 | ||
| Married/in couple | 1296 | 54.2 | 3.87 | 4.45 | ||
| Divorced/separated | 205 | 8.57 | 5.17 | 5.26 | ||
| Widowed | 742 | 31.03 | 4.49 | 4.56 | ||
| Unspecified | 49 | 2.05 | 4.53 | 4.86 | ||
| Educational level | < 0.001 | < 0.001 | ||||
| Nil | 443 | 18.53 | 3.47 | 3.73 | ||
| Primary | 836 | 34.96 | 4.11 | 4.41 | ||
| Secondary | 787 | 32.92 | 4.61 | 4.98 | ||
| Tertiary | 325 | 13.59 | 4.81 | 5.40 | ||
| Lifestyle at baseline | < 0.001 | < 0.001 | ||||
| At home with its husband/spouse | 1266 | 52.95 | 3.92 | 4.53 | ||
| At home with relatives | 160 | 6.69 | 3.16 | 3.24 | ||
| At home, alone, with relatives in the neighborhood | 684 | 28.61 | 4.71 | 4.79 | ||
| At home, alone, without relatives in the neighborhood | 200 | 8.36 | 5.63 | 5.68 | ||
| Other lifestyle | 81 | 3.39 | 4.32 | 4.36 | ||
| MMSE score (mean, 95% CI) | 20.18 | [19.92–20.43] | < 0.001 | < 0.001 | ||
| [0,10[ | 157 | 6.57 | 1.92 | 2.12 | ||
| [10,20[ | 826 | 34.55 | 3.20 | 3.49 | ||
| [20,26[ | 828 | 34.63 | 4.54 | 4.92 | ||
| [26,30] | 580 | 24.26 | 5.97 | 6.42 | ||
| NPI score (mean, 95% CI) | 17.4 | [16.76–18.04] | < 0.001 | < 0.001 | ||
| Diagnosis stage | < 0.001 | < 0.001 | ||||
| Absence of trouble | 16 | 0.67 | 5.13 | 5.90 | ||
| Subjective cognitive complaint | 691 | 28.9 | 5.45 | 5.88 | ||
| Mild neurocognitive disorders | 700 | 29.28 | 4.98 | 5.37 | ||
| Major neurocognitive disorders | 975 | 40.78 | 2.86 | 3.13 | ||
| Other cases | 9 | 0.38 | 5.00 | 5.25 | ||
| Etiology | < 0.001 | < 0.001 | ||||
| Etiology not yet established | 1107 | 46.3 | 4.82 | 5.25 | ||
| Alzheimer’s disease | 576 | 24.09 | 3.28 | 3.51 | ||
| Alzheimer’s disease with cerebrovascular component | 131 | 5.48 | 2.99 | 3.31 | ||
| Cognitive disorders of vascular origin | 198 | 8.28 | 3.38 | 3.75 | ||
| Lewy body disease | 41 | 1.71 | 2.95 | 3.36 | ||
| Fronto temporal dementia | 10 | 0.42 | 1.50 | 1.65 | ||
| Parkinson’s disease, and Parkinson’s syndroma | 54 | 2.26 | 3.22 | 3.65 | ||
| Psychiatric disorders | 132 | 5.52 | 5.81 | 6.11 | ||
| Other disorders | 78 | 3.26 | 4.46 | 4.94 | ||
| No trouble | 64 | 2.68 | 7.02 | 7.26 |
C-IADL corrected Instrumental Activities of Daily Living score, IADL Instrumental Activities of Daily Living score, MMSE Mini-Mental Stage Examination, NPI Neuropsychiatric Inventory, ref. reference category
p value from a one-way Anova