. Author manuscript; available in PMC: 2009 May 14.

Published in final edited form as: Am J Geriatr Psychiatry. 2008 Mar 10;16(5):375–383. doi: 10.1097/JGP.0b013e318162f197

TABLE 2.

Demographic and Clinical Characteristics

Variable	NC (n = 39)	MCI (n = 38)	F or χ²	df	p
Age, yrs	72.4±5.5 (60–82)	74.6±7.5 (60–90)	2.2	1, 75	0.14
Education Level, yr	16.4±2.5 (12–21)	15.9±2.9 (12–21)	0.6	1, 75	0.45
MMSE	29.3±0.9 (27–30)	28.0±1.7 (22–30)	18.0	1, 75	0.0001
GDS	2.79±3.5 (0–19)	4.79±4.5 (0–18)	4.7	1, 75	0.03^a
Sex, % female	59	50	1.0	1	0.31
Race, % white	85	82	0.1	1	0.96

Notes: Data presented as mean ± standard deviation (range) or percentage (%). NC: cognitively normal; MCI: mild cognitive impairment; MMSE: Mini-Mental State Examination; GDS, Geriatric Depression Scale.

Post-hoc analyses revealed that the between-group GDS difference may be associated with global cognitive status, as adjusting for MMSE score attenuates the finding (F_(1,74) = 2.1, p = 0.15).