Increasing Incidence in Relapsing-Remitting MS and High Rates among Young Women in Finland: A Thirty-Year Follow-Up

Table 3

Mean age at diagnosis and diagnostic delay (years) presented by disease course and gender during the study periods 1981–1990, 1991–2000, and 2001–2010.

Disease course
Period	RRMS				PPMS
	Female		Male		Female		Male
	Mean delay (y)	Mean age (y)	Mean delay (y)	Mean age (y)	Mean delay (y)	Mean age (y)	Mean delay (y)	Mean age (y)
1981–1990	4	36	3	37	2	44	4	43
1991–2000	2	37	2	36	3	44	3.5	43
2001–2010	2	35	1	35	3	53	2.5	50