- Research report
Grandparental caregiving, income inequality and respiratory infections in elderly US individuals
Summary statistics for P&I rates and key demographic and socioeconomic explanatory variables
| Percentiles | ||||||
| No of counties | Mean (SD) | 25th | 50th | 75th | Moran's I | |
| P&I rates | ||||||
| Overall | 2785 | 47.3 (27.5) | 33.9 | 43.1 | 55.1 | 0.03 |
| 65–74 years | 2791 | 24.9 (15.1) | 17.5 | 22.5 | 29.1 | 0.04 |
| 75–84 years | 2792 | 55.2 (32.4) | 40.4 | 50.8 | 63.9 | 0.03 |
| 85+ years | 2786 | 119.1 (73.4) | 85.0 | 106.8 | 138.4 | 0.03 |
| Demographic variables | ||||||
| Population density (per square mile) | 2792 | 103.1 (701.7) | 8.8 | 19.0 | 45.8 | 0.07 |
| Percentage of co-residential grandparents in the grandparent population | 2792 | 2.7 (1.5) | 1.7 | 2.4 | 3.5 | 0.07 |
| Percentage of co-residential grandparents who care for their grandchildren | 2792 | 57.5 (12.0) | 49.8 | 57.5 | 65.1 | 0.07 |
| Youth dependency ratio | 2792 | 33.1 (4.6) | 30.5 | 33.0 | 35.4 | 0.09 |
| Socioeconomic variables | ||||||
| Gini index | 2792 | 0.417 (0.033) | 0.394 | 0.416 | 0.439 | 0.13 |
| Median income | 2792 | 35670 (8914) | 29973 | 34097 | 39741 | 0.10 |
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P&I, pneumonia and influenza.
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