Table 3.

Concordance of data sources on any DMT use in MS patients.^a

Imputation	Patient-reported MS medication	MS medication in claims (5 years)			Agreementb
		Any DMT	No DMT	Total	Overall	PPA	NPA
	Overall any DMT	195	156	351	58.7%	97.0%	18.3%
No	Overall no DMT	6	35	41
	Total	201	191	392
No	Any DMT (5 years)	111	77	188	57.4%	55.2%	59.7%
	No DMT (5 years)	90	114	204
	Total	201	191	392
Yes	Any DMT (5 years)	162	122	284	58.9%	80.6%	36.1%
	No DMT (5 years)	39	69	108
	Total	201	191	392

^aDMT use categories in this table reflect claims or patient reported; if no dates available then included under “no” for no imputation; missing dates for DMT use imputed based on date of medication entry to evaluate use within 5 years in section marked “yes.”

^bPPA and NPA calculations use claims as reference.