Table 5.
Multivariate logistic regression analysis for study of the relationship between different independent variables and the occurrence of SARS-CoV-2 infection after administration of the second vaccine dose in HCWs
| OR | s.e. | z | P > z | 95% confidence interval | ||
|---|---|---|---|---|---|---|
| Seropositivity before second vaccination | 0.682266 | 0.109149 | −2.39 | 0.017 | 0.49863 | 0.93353 |
| Positive PCR before vaccination | 0.970964 | 0.163428 | −0.18 | 0.861 | 0.698125 | 1.350434 |
| Age | 1.017439 | 0.022811 | 0.77 | 0.441 | 0.9737 | 1.063144 |
| Number of household members | 0.85812 | 0.165158 | −0.8 | 0.427 | 0.588466 | 1.251338 |
| History of COVID-19 in family | 1.013621 | 0.513175 | 0.03 | 0.979 | 0.375777 | 2.734141 |
| BMI | 1.020345 | 0.040424 | 0.51 | 0.611 | 0.944113 | 1.102731 |
| Seropositivity after 1st dose of vaccine | 0.90703 | 0.041756 | −2.12 | 0.034 | 0.828773 | 0.992676 |
Significant p values are shown in bold.