A non-response analysis of 2-year data in the Swedish Knee Ligament Register.

Purpose: To analyse the non-response group in the Swedish Knee Ligament Register (SKLR).

Methods: All 3588 patients in the SKLR who had undergone anterior cruciate ligament surgery in 2010 were included. Respondents (n = 1865) and non-respondents (n = 1723) at the 2-year follow-up survey were assessed for potential differences in demographics and baseline data.