Table 4.
Pooled prevalence of complete ADL and subgroup analyses.
| Variables | Classification | Number of Studies | Number of Results | Event Rate (%) | 95% CI (%) | Heterogeneity I2 (%) | Q-Value | p-Value |
|---|---|---|---|---|---|---|---|---|
| Pooled prevalence | 41 | 41 | 33.8 | 29.4–38.3 | 99.6 | 10,997.47 | ||
| Gender | Male | 16 | 16 | 32.2 | 23.1–41.4 | 99.5 | 0.52 | 0.472 |
| Female | 16 | 16 | 36.7 | 28.7–44.7 | 99.4 | |||
| Age group | 60–69 | 6 | 6 | 25.5 | 14.0–36.9 | 99.7 | 22.45 | <0.001 |
| 70–79 | 6 | 6 | 40.5 | 24.9–56.1 | 99.6 | |||
| ≥80 | 7 | 7 | 61.9 | 51.9–71.9 | 97.3 | |||
| Region | Eastern China | 16 | 16 | 36.4 | 27.8–44.9 | 99.8 | 1.10 | 0.578 |
| Northern China | 12 | 12 | 34.7 | 26.9–42.4 | 99.6 | |||
| Other regions * | 12 | 12 | 31.2 | 25.1–37.2 | 99.6 | |||
| Survey year | 2009 and before * | 10 | 10 | 32.9 | 24.4–41.5 | 99.5 | 0.38 | 0.827 |
| 2010–2014 | 15 | 15 | 35.9 | 27.4–44.3 | 99.7 | |||
| 2015–2019 | 16 | 16 | 32.5 | 24.9–40.1 | 99.7 | |||
* To avoid the limitation of insufficient studies, we merged Central China, Southwest China, and Northwest China into a group called “Other regions”. In addition, the studies published in 2009 and prior to 2009 were merged into one group.