Fig. 4. Relationship between age at the time of the Chornobyl accident and clonal clock mutations, by pattern of DNA damage that generated the PTC driver.

Analyses excluded unexposed individuals (i.e., born >9 months after the accident). βs per year of age (95% CI) were estimated from linear regression models adjusted for sex and age at PTC. P values were calculated using likelihood ratio tests. Red font and line indicate regression model with statistically significant parameter estimate (P < 0.05).