Table 1.
Descriptive statistics for participating households at South African Population Research Infrastructure Network nodes from April to December 2020.
| Characteristics | Totala | Nodeb | ||||||||||
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AHRIc | Agincourt | DIMAMOd | P valuee | |||||||
| Number of households | 5120 | 1608 | 1797 | 1715 | N/Af | |||||||
| Highest education attained, %g | <.001 | |||||||||||
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Less than complete secondary education | 21.7 | 23.4 | 22.5 | 16.3 |
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Complete secondary education | 59 | 59.7 | 77.3 | 17.3 |
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Diploma/certificate/degree | 19.3 | 16.9 | 0.2 | 66.4 |
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| Node-specific household wealth quintile, %h | <.001 | |||||||||||
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Lowest | 14 | 16.3 | 9.6 | 18.1 |
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Second lowest | 18.2 | 19.8 | 16.5 | 18.4 |
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Middle | 20.9 | 20.1 | 20.8 | 22.6 |
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Second highest | 22.8 | 20.4 | 25.4 | 22.2 |
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Highest | 24.1 | 23.5 | 27.7 | 18.6 |
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| Household size in 2020i, median (IQR) | 5 (3-8) | 5 (3-8) | 6 (4-8) | 5 (3-7) | <.001 | |||||||
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Number of children | 2 (1-3) | 2 (1-4) | 2 (1-3) | 1 (0-3) | <.001 | ||||||
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Number of working age adults | 3 (2-4) | 2 (1-4) | 3 (2-5) | 3 (2-4) | <.001 | ||||||
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Number of people aged over 60 | 0 (0-1) | 0 (0-1) | 0 (0-1) | 0 (0-1) | .79 | ||||||
| Number of full-time or part-time employed people, median (IQR)j | 1 (0-2) | 1 (0-2) | 1 (0-2) | 0 (0-1) | <.001 | |||||||
| Number of pension grant receivers, median (IQR)j | 0 (0-1) | 0 (0-1) | 0 (0-1) | 0 (0-1) | .06 | |||||||
| Number of nonpension grant receivers, median (IQR)j | 1 (0-3) | 1 (0-3) | 2 (0-3) | 1 (0-2) | <.001 | |||||||
aPercentages refer to all participating households.
bPercentages refer to all households with nonmissing values.
cAHRI: Africa Health Research Institute.
dDIMAMO: Dikgale-Mamabolo-Mothiba
eP values were based on the differences in characteristics between groups and were calculated from Chi-square tests for categorical variables and Wilcoxon rank-sum tests (participation comparison) or Kruskal-Wallis tests (node comparisons) for continuous variables.
fN/A: not applicable.
gData are missing from 1.4% (22/1608) of households surveyed by AHRI, 4.8% (86/1797) of households surveyed by Agincourt, and 48.3% (828/1715) of households surveyed by DIMAMO.
hData are missing from 0.5% (8/1608) of households surveyed by AHRI, 6.6% (118/1797) households surveyed by Agincourt, and 47.7% (818/1715) of households surveyed by DIMAMO.
iHousehold sizes in 2020 were only determined for participating households.
jData are missing from 23 households surveyed by AHRI, 10 households surveyed by Agincourt, and 4 households surveyed by DIMAMO.