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. 2021 Mar 1;13:592261. doi: 10.3389/fnagi.2021.592261

Table 4.

Descriptive statistics for ST+, LT+, ST–, and LT– for digit span.

	Short-term gains			Long-term gains
	ST+	ST–	P-Value	LT+	LT–	P-Value
Training Gains of ≪Digit Span≫
N	25	35		4	56
Sex			0.19^a			0.62^a
Male	12	11		2	21
Female	13	24		2	35
Age	67.52 ± 5.57	69.97 ± 7.13	0.22^a	70.25 ± 3.86	68.85 ± 6.75	0.32^a
Education years	15.72 ± 2.28	15.34 ± 2.35	0.45^a	16.75 ± 1.25	15.41 ±2.34	0.20^a
IQ	115.06 ± 10.24	117.10 ± 9.93	0.44^a	116.40 ± 12.39	116.24 ± 9.97	0.83^b

^a

Mann–Whitney test.

^b

t-test for independent samples.