Table 1:
Output of multiple logistic regression model with anti-S positivity as the outcome (January to December 2021)
| Odds ratio (CIs) | (95% CI) | |
|---|---|---|
| Sex | ||
| Female | Referent | |
| Male | 0.61 | 0.50 to 0.74 |
| Age group | ||
| 17–24 | Referent | |
| 25–39 | 1.58 | 1.08 to 2.31 |
| 40–59 | 2.62 | 1.81 to 3.79 |
| 60+ | 6.52 | 4.38 to 9.69 |
| Race | ||
| White | Referent | |
| Racialized | 0.99 | 0.71 to 1.40 |
| Material deprivation index | ||
| 1 (least deprived) | Referent | |
| 2 | 1.08 | 0.77 to 1.50 |
| 3 | 0.71 | 0.51 to 0.98 |
| 4 | 0.71 | 0.52 to 0.96 |
| 5 (most deprived) | 0.77 | 0.55 to 1.07 |
| Social deprivation index | ||
| 1 (least deprived) | Referent | |
| 2 | 0.88 | 0.61 to 1.28 |
| 3 | 0.78 | 0.54 to 1.12 |
| 4 | 0.94 | 0.65 to 1.37 |
| 5 (most deprived) | 0.80 | 0.55 to 1.18 |
| Month of donation | ||
| January | Referent | |
| March | 3.13 | 1.59 to 6.19 |
| April | 15.85 | 9.13 to 27.52 |
| May | 101.77 | 59.35 to 174.53 |
| June | >1000 | 609.21 to >1000 |
| July | >1000 | >1000 to >1000 |
| August | >1000 | >1000 to >1000 |
| September | >1000 | >1000 to >1000 |
| October | >1000 | >1000 to >1000 |
| November | >1000 | >1000 to >1000 |
| December | >1000 | >1000 to >1000 |