Table 1.

Population characteristics for the prevalent MS population on December 31st 2020

Stratified by if the persons were included in the MS register or not. Values are shown as number (percent), mean (standard deviation), or median (interquartile range). Differences between the two groups expressed as standardized mean differences (SMD). For the weighted population, the groups were made comparable by overlap weighting based on age at the time of assessment (December 31st 2020). *Income for those with any income