Table 6.
Correlation coefficients (r values) between the number of vaccine doses received, IgG concentration (BAU/ml), the quarter of the last vaccination, and the quarter of the last infection
| Variable | Doses | IgG concentration (BAU/ml) | Last vaccination (quarter) | Last infection (quarter) | ||||
|---|---|---|---|---|---|---|---|---|
| Doses | ||||||||
| Correlation | 1 | 0.339** | –0.647** | 0.080** | ||||
| p-value | < 0.001 | < 0.001 | < 0.001 | |||||
| n | 4090 | 4090 | 3949 | 2197 | ||||
| IgG concentration (BAU/ml) | ||||||||
| Correlation | 0.339** | 1 | –0.282** | –0.171** | ||||
| p-value | 0.000 | < 0.001 | < 0.001 | |||||
| n | 4090 | 4090 | 3949 | 2197 | ||||
| Last vaccination (quarter) | ||||||||
| Correlation | –0.647** | –0.282** | 1 | –0.056** | ||||
| p-value | < 0.001 | < 0.001 | 0.010 | |||||
| n | 3949 | 3949 | 3949 | 2098 | ||||
| Last infection (quarter) | ||||||||
| Correlation | 0.080** | –0.171** | –0.056** | 1 | ||||
| p-value | < 0.001 | < 0.001 | 0.010 | |||||
| n | 2197 | 2197 | 2098 | 2197 | ||||
**
Correlation is significant at the 0.01 level (2-tailed). The values range from –1 to 1, where a value of 1 indicates a strong positive correlation, 0 indicates no correlation, and –1 indicates a strong negative correlation.