Analysis of intracranial haemorrhage following tozinameran (BNT162b2, Pfizer-BioNTech)

between tozinameran and intracranial haemorrhage (ICH) based on what they claimed as incompatibility with national statistics [1]. However, their analysis is fawed. Tey claim that there was an imbalance in the number of fatal ICH, as there were four such cases in women compared to none in men when the national death rate by ICH is comparable between the sexes. However, they failed to recognize the sex imbalance in the number of health workers in Japan. 

between tozinameran and intracranial haemorrhage (ICH) based on what they claimed as incompatibility with national statistics [1]. However, their analysis is fawed. Tey claim that there was an imbalance in the number of fatal ICH, as there were four such cases in women compared to none in men when the national death rate by ICH is comparable between the sexes. However, they failed to recognize the sex imbalance in the number of health workers in Japan.