Table 5. Demographic characteristics, risk factors and overall cancer prevalence according to MS disease course.

PP: Primary Progressive; RR: Recurring Remitting; SP: Secondary Progressive; SEM: Standard error of the mean.

	PP-MS (n = 76)	CIS, RR-MS and SP-MS (n = 829)	p
Age: mean ± SEM	57.8 ± 1.2	49.4 ± 0.4	<0.001
Female gender: % (n)	64.5 (49)	80.5 (667)	0.001
History of tobacco smoking: % (n)	40.8 (31)	51.3 (425)	0.08
History of alcohol consumption: % (n)	18.4 (14)	9.9 (82)	0.02
Overall cancer prevalence: % (n)	7.89 (6)	6.51 (54)	0.63