Table 1.
Descriptive statistics by cognitive impairment status.
| All respondents | No impairment | Cognitive impairment | |
|---|---|---|---|
| N | 5059 | 4603 | 416 |
| Men 40-49 | 8.3% | 8.6% | 3.8% |
| 50-59 | 12.3% | 12.8% | 6.3% |
| 60-69 | 12.7% | 13.1% | 8.4% |
| 70-79 | 8.8% | 8.7% | 10.3% |
| 80+ | 4.2% | 3.7% | 10.3% |
| Women 40-49 | 9.9% | 10.7% | 1.0% |
| 50-59 | 15.5% | 16.4% | 7.0% |
| 60-69 | 13.1% | 13.4% | 10.3% |
| 70-79 | 8.5% | 7.8% | 15.9% |
| 80+ | 6.6% | 4.8% | 26.7% |
| Employment status | |||
| Not working | 73.5% | 72.2% | 88.9% |
| Employed (part or full time) | 15.9% | 17.1% | 3.4% |
| Homemaker | 10.3% | 10.6% | 7.7% |
| Household size | |||
| Living alone | 10.6% | 10.1% | 16.3% |
| Living with one other person | 10.6% | 10.3% | 14.9% |
| Living with 2–5 others | 48.2% | 48.6% | 43.8% |
| Living with 6+ others | 30.6% | 31.1% | 25.0% |
| Household asset level | |||
| Lowest quintile | 20.7% | 19.6% | 32.0% |
| Second lowest quintile | 19.8% | 19.4% | 24.8% |
| Middle quintile | 19.6% | 19.8% | 17.1% |
| Second highest quintile | 19.9% | 20.2% | 17.5% |
| Highest quintile | 20.0% | 21.1% | 8.7% |
| Educational attainment | |||
| No formal education | 45.6% | 42.2% | 85.0% |
| Some primary (1–7 years) | 33.9% | 36.0% | 12.6% |
| Some secondary or more (8+ years) | 20.1% | 21.9% | 2.4% |
| Country of origin: | |||
| Mozambique/other not South Africa | 30.2% | 28.5% | 48.0% |
| Marital status | |||
| Never married | 5.7% | 5.5% | 8.4% |
| Separated/divorced | 12.8% | 13.0% | 11.8% |
| Widowed | 30.4% | 28.2% | 54.6% |
| Currently married | 50.9% | 53.3% | 25.2% |
| Can vs. cannot read or write | 58.3% | 62.8% | 9.6% |
| Father's occupation | |||
| Skilled | 49.0% | 50.3% | 36.1% |
| Unskilled | 28.6% | 28.5% | 29.9% |
| Other | 11.4% | 11.4% | 11.3% |
| Don't know | 10.8% | 9.7% | 22.7% |
| Childhood self-rated health: | |||
| Good/very good (vs. moderate/bad/very bad) | 87.6% | 88.3% | 81.4% |
Note. Differences between those with and without cognitive impairment statistically significant (p < 0.001) for all variables shown based on Kruskall–Wallis tests (Rank-Sum test for ordinal variable). Forty-eight individuals missing at least one covariate: employment status, n = 10; education level, n = 17; country of origin, n = 5; marital status, n = 4; literacy, n = 3; paternal occupation, n = 12; childhood health, n = 4.