请教Fuz哪里不对？

你引用的文章正是我文章中引用的文章。我质疑的正是他们以下结论不对。 “We find no evidence (for both risk of hospitalisation attendance and symptom status) of Omicron having different severity from Delta, though data on hospitalisations are still very limited.” 明明根据他们提供的数据（文章中第6页）：住院人数（15063 vs 24），总感染人数（208947 vs 15087)。我计算出住院率为（0.67% vs 0.16%）。住院比率Delta是Omicron 4 倍。 简单的统计测试Significant Test，可得出两者是Significant different。但他们的结论是 “Hospitalisation and asymptomatic infection indicators were not significantly associated with Omicron infection, suggesting at most limited changes in severity compared with Delta.” 请教Fuz哪里不对？ 我不反对打Booster。我只想弄明白为什么英国和南非的研究结果迥然不同。