. Author manuscript; available in PMC: 2019 Jul 1.

Published in final edited form as: J Am Geriatr Soc. 2018 May 10;66(7):1360–1366. doi: 10.1111/jgs.15412

Table 1.

Differences in demographics between groups classified using Petersen et al. criteria⁹

	NC (n = 280)	MCI (n = 415)	t(693)	P values	Effect size

Age	73.05 (6.13)	71.87 (7.34)	2.209	.027	0.17
Sex (f/m)	150/130	181/234	6.645^a	.010	−0.09^b
Education	16.6 (2.56)	16.2 (2.67)	1.970	.049	0.16
MMSE	29.02 (1.25)	28.05 (1.69)	8.211	<.001	0.63

NC: normal control. MCI: mild cognitive impairment. MMSE: Mini-Mental state Examination

χ²(2,695).

Phi coefficient