Chronic sinusitis in the 99% vaccine-exposed population: 14.6%
According to MedScape: “Chronic sinusitis is one of the more prevalent chronic illnesses in the United States, affecting persons of all age groups. The overall prevalence of CRS in the United States is 146 per 1000 population.” (146/1000=14.6%)

Compare Unvaccinated Survey Data:
(a) Risk in unvaccinated (1 of 1,482): 0.07%
1. Risk in unvaccinated without exposure to maternal vaccines or K shot (0 of 1024): 0%
2. Risk of sinusitis in unvaccinated (post-birth) with exposure to K-shot and/or maternal vaccines (1 out of 458): 0.22%

(b) Increased risk in vaccinated (post-birth) population: 20,757%

All citations here: https://vaxcheckers.org/wp-content/uploads/2021/09/2021-Amended-FULL-Report-Control-Group-2.pdf