Table 1.
Seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies in Romanian blood donors by gender, area of residence, age, Rhesus blood groups and ABO blood type
| Variables | No. positive/No. tested (%) | p valuea | |
|---|---|---|---|
| Gender | Male | 22/1400 (1.57) | 0.852 |
| Female | 10/715 (1.40) | ||
| Area of residence | Urban | 22/1345 (1.64) | 0.584 |
| Rural | 10/770 (1.30) | ||
| Age groups (years) | 18–29 | 12/570 (2.11) | 0.026 |
| 30–49 | 12/1261 (0.95) | ||
| 50–65 | 8/284 (2.82) | ||
| Rhesus blood groups | Rh positive | 26/1794 (1.45) | 0.616 |
| Rh negative | 6/321 (1.87) | ||
| ABO blood type | AB | 3/166 (1.81) | 0.927 |
| O | 12/716 (1.68) | ||
| A | 13/902 (1.44) | ||
| B | 4/331 (1.21) | ||
a
A probability level of p < 0.05 was considered to indicate statistical significance. Statistical analyses were conducted with Epi Info version 7.2 (CDC, Atlanta, GA, USA) and Stata 16.1 (Statacorp, College Station, TX, USA). Chi-squared tests or Fisher's exact test, as appropriate, were used to evaluate the differences between SARS-CoV-2-positive and SARS-CoV-2-negative blood donors with respect to different characteristics.