Table 1.

Demographics of the participants (N = 56).

	Mahjong	Control	Total	P
Gender, (women %)	78.6%	67.9%	73.2%	0.375
Age, year (mean ± s.d)	74.4 ± 3.9	74.2 ± 4.8	74.3 ± 4.3	0.879
Education, year (mean ± s.d)	5.6 ± 3.7	5.9 ± 4.2	5.7 ± 3.9	0.814
GDS (mean ± s.d)	3 ± 1.56	2.86 ± 1.7	2.93 ± 1.64	0.748
CDR (mean ± s.d)	0.88 ± 0.59	0.84 ± 0.62	0.86 ± 0.6	0.826

GDS-15, Geriatric Depression Scale; CDR, The Clinical Dementia Rating.