Table 3.
Analysis on the durability of protection against Omicron reinfection with hybrid immunity (complete vaccination) (days).a
| Time from complete vaccination to reinfection | Number of articles | Number of studies | Pooled PE Estimate and 95% CI | p | I2 (%) | p | Effect model | p for Egger’s test |
|---|---|---|---|---|---|---|---|---|
| 30 ~ 59 | 5 | 17 | 76.87% (69.43–84.31%) |
<0.001 | 99.3 | <0.001 | Random | 0.898 |
| 60 ~ 89 | 2 | 9 | 76.14% (65.61–86.68%) |
<0.001 | 99.8 | <0.001 | Random | |
| 90 ~ 119 | 2 | 9 | 73.15% (60.78–85.53%) |
<0.001 | 99.6 | <0.001 | Random | |
| 120 ~ 149 | 3 | 9 | 68.68% (60.91–76.45%) |
<0.001 | 90.9 | <0.001 | Random | |
| 150 ~ 179 | 1 | 3 | 64.85% (57.67–72.04%) |
<0.001 | 0.0 | 0.700 | Fixed | |
| 180 ~ 209 | 1 | 4 | 63.08% (56.15–70.01%) |
<0.001 | 0.00 | 0.801 | Fixed | |
| 210 ~ 269 | 3 | 5 | 62.97% (60.67–65.26%) |
<0.001 | 0.00 | 0.720 | Fixed | |
| 270 ~ 364 | 1 | 2 | 54.36% (50.82–57.90%) |
<0.001 | 0.00 | 0.438 | Fixed |
a
The exposed group was hybrid immunity (complete vaccination); the control group was never infected and unvaccinated.