Table 1.
Comparisons of samples before and after excluded cases were deleted.
| Total Samples (No. of Respondents/Percentage) |
Samples with Complete Information (No. of Respondents/Percentage) |
|
|---|---|---|
| Gender (%) | ||
| Female | 3651 (57.1) | 2128 (55.9) |
| Male | 2744 (42.9) | 1679 (44.1) |
| Residence (%) | ||
| City | 921 (14.4) | 472 (12.4) |
| Town | 1746 (27.3) | 1085 (28.5) |
| Rural | 3728 (58.3) | 2250 (59.1) |
| Age (years) | ||
| Max | 106 | 106 |
| Min | 80 | 80 |
| Mean | 91.4 | 90.7 |
Note: Although a slight bias existed towards males, town and rural districts and younger oldest-old groups, the differences between the two groups of samples are not obvious. Gender, residence and age are controlled in the regression models, deleting those samples with missing information does not impact the results of this study.