How can rewrite person-years as something that doesn't feel like jargon?
I came across some research where scientists were assessing the effectiveness of a vaccine and placebo a few weeks after receiving multiple doses of either. I've tried a couple of things to solve it. It says the incidence of first infections post the vaccination phase was around 45 infections per 100 person-years in the vaccine group, and 49 infections per 100 person-years in the placebo group. Similarly, the all infection rates post the vaccination/placebo phase (which includes multiple infections), was 60 per 100 person-years in the vaccine group, and around 66 per 100 person-years in the placebo group.
What sort of ways could this be framed to ensure that younger people can understand this?
Could this be written as 45 infections among 100 people every year? And 60/66 infections, including repeat infections, among 100 people per year? The rate of first infections in people who received two doses of the vaccine was 45%? And 60/66% for all infections among both groups? Please help.