Table 6.
Incidence rate ratios (95% confidence intervals) for covid-19 vaccination or SARS-CoV-2 infection and the occurrence of Bell’s palsy estimated using self-controlled case series analysis in in SIDIAP
| ChAdOx1 nCoV-19 | BNT162b2 | mRNA-1273 | SARS-CoV-2 infection | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No of events | Incidence rate ratio (95% CI) | No of events | Incidence rate ratio (95% CI) | No of events | Incidence rate ratio (95% CI) | No of events | Incidence rate ratio (95% CI) | ||||
| Baseline | 4588 | Ref | 9150 | Ref | 3791 | Ref | 3892 | Ref | |||
| Days pre-vaccination/pre-infection: | |||||||||||
| −21 to −1 | 12 | 0.44 (0.23 to 0.73) | 74 | 0.69 (0.54 to 0.86) | 11 | 0.80 (0.41 to 1.38) | 44 | 2.93 (2.13 to 3.92) | |||
| Day 0 | <5 | <5 | <5 | 8 | 11.13 (5.07 to 20.80) | ||||||
| Days post-vaccination/post-infection: | |||||||||||
| 1-7 | 7 | 0.77 (0.33 to 1.49) | 22 | 0.62 (0.39 to 0.91) | <5 | 17 | 3.38 (2.01 to 5.28) | ||||
| 8-14 | 7 | 0.77 (0.33 to 1.50) | 35 | 1.02 (0.72 to 1.40) | 6 | 1.37 (0.54 to 2.79) | 6 | 1.21 (0.48 to 2.47) | |||
| 15-21 | 11 | 1.22 (0.63 to 2.10) | 27 | 0.85 (0.57 to 1.22) | <5 | <5 | |||||
| 1-21 | 25 | 0.92 (0.60 to 1.33) | 84 | 0.83 (0.66 to 1.02) | * | 0.99 (0.54 to 1.64) | * | 1.82 (1.21 to 2.61) | |||
| 1-90 | 77 | 1.31 (1.03 to 1.64) | |||||||||
Events with fewer than five occurrences have been omitted for privacy reasons.
*
Since event number <5 was blinded, the total number of events during the period was also blinded.