Table 1.
Basic information and grouping of subjects.
| Number of Subjects | Age | Age Mean ± SD Range | Groups | Sample Source | |
|---|---|---|---|---|---|
| Younger seniors (YS) | 36 | 55–69 | 58.97 ± 3.69 | Young group (YG) |
2 samples from Wang et al. [14], 20 samples from Ren et al. [15], and 35 samples from this study |
| General elderly (GE) | 21 | 71–86 | 77.48 ± 5.63 | ||
| Older seniors (OS) |
39 | 90–100 | 94.10 ± 3.12 | Longevity group (LG) |
13 samples from Wang et al. [14], 38 samples from Ren et al. [15], and 27 samples from this study |
| Centenarians (CE) |
39 | 101–118 | 104.71 ± 3.93 | ||
| Non-longevity area in guangxi (NLA) |
27 | 53–82 | 62.86 ± 8.17 | NLA | Ren et al. [15] |