Table 3 Multivariable analyses of NAb titer after 30 days and 180 days of 2nd dosage vaccination.
Characteristics | NAb titers after 30 days | NAb titers after 180 days | ||
|---|---|---|---|---|
β (95% CI) | p-value | β (95% CI) | p-value | |
Age | ||||
< 50 years | Na | Na | ||
≥ 50 years | − 6.63 (− 11.04 to − 2.22) | 0.003 | − 5.61 (− 10.87 to − 0.36) | 0.036 |
Sex | ||||
Male | Na | Na | ||
Female | − 2.37 (− 6.31 to 1.58) | 0.240 | − 6.39 (− 11.11 to − 1.68) | 0.008 |
BMI ≥ 30 | 10.63 (4.34 to 16.90) | 0.001 | 5.01 (− 2.48 to 12.51) | 0.190 |
COVID-19 positive | 6.11 (1.94 to 10.29) | 0.004 | 9.08 (4.10 to 14.06) | < 0.001 |
Profession | ||||
Non-medical staff | Na | Na | ||
Medical staff | − 4.42 (− 8.02 to − 0.81) | 0.016 | − 1.58 (− 5.88 to 2.72) | 0.472 |
Tobacco user | − 8.48 (− 13.49 to − 3.47) | 0.001 | − 14.56 (− 20.55 to − 8.58) | < 0.001 |
Comorbidities | ||||
Type 2 Diabetes | 10.18 (4.16 to 16.21) | 0.001 | − 2.25 (− 9.44 to 4.95) | 0.540 |
Hypertension | 1.72 (− 2.49 to 5.93) | 0.422 | − 4.23 (− 9.30 to 0.76) | 0.096 |
Asthma | 0.72 (− 3.79 to 5.23) | 0.755 | − 19.93 (− 24.77 to − 14.00) | < 0.001 |
