Table 2.

Bivariate correlations between olfactory function (OT, OD, OI, and TDI) and each specific sub-score of the CRI.

		CRI-Education	CRI-Working Activity	CRI-Leisure Time	CRI-Total Score
OT	r	−0.150	0.066	0.058	0.782
	p	0.014	0.282	0.340	0.269
OD	r	0.077	0.408	0.364	0.197
	p	0.206	0.001	0.001	0.001
OI	r	0.176	0.406	0.389	0.337
	p	0.004	0.001	0.001	0.001
TDI	r	0.063	0.308	0.304	0.298
	p	0.301	0.001	0.001	0.001

Legend: CRI = Cognitive Reserve Index; OT = Odor Threshold; OD = Odor Discrimination; OI = Odor Identification; TDI score = Threshold, Discrimination, and Identification score. Bold indicates statistical differences of p < 0.05.