Table 4 Summary of meta-regression and subgroup analysis for prevalence of ACO in the general population
| Â | NO. of studies | Prevalence of ACO (95% CI) | I-square | Meta-Regression P-Value |
|---|---|---|---|---|
Region of study | Â | Â | Â | 0.994 |
Europe | 12 | 1.3% (1.0–1.6) | 99.1% |  |
North America | 9 | 2.5% (1.9–3.0) | 99.1% |  |
East Asia | 3 | 1.4% (0.7–2.0) | 99.7% |  |
Year of publication | Â | Â | Â | 0.995 |
≤ 2015 | 7 | 1.8% (0.7–2.8) | 99.4% |  |
>  2015 | 20 | 2.1% (1.4–2.8) | 100.0% |  |
Study quality | Â | Â | Â | 0.865 |
Low and Moderate (< 8) | 5 | 2.1% (0.7–3.4) | 99.5% |  |
High (≥8) | 22 | 2.0% (1.3–2.6) | 100.0% |  |