Table 1.

Log-rank test comparing the incidence of follow-up interruption for different consecutive years.

Period	Events observed	Events expected
2016	129	281.82
2017	417	402.84
2018	151	83.48
2019	157	74.52
2020	22	33.33
Total	876	876.00

CHI2 (4) = 307.45; p = 0.0000.