TABLE 3.

Descriptive and Comparative Statistics of the MCI With and Without T2DM Groups Using the Mann-Whitney U Test

	MCI With T2DM (n=12)			MCI Without T2DM (n=15)			Mann-Whitney U test
Temporal Speech Parameters	M	Mdn	SD	M	Mdn	SD	U	Z	P
Utterance length (s)	119.50	80.10	93.150	131.70	79.40	139.058	83.000	−0.342	0.755
Articulation tempo (1/s)	9.26	9.64	2.644	8.76	8.20	1.703	76.000	−0.683	0.516
Speech tempo (1/s)	9.99	10.37	2.555	9.57	9.09	1.582	77.000	−0.634	0.548
Occurrence rates of pauses
Silent pause (%)	5.77	5.74	2.504	5.73	5.47	1.841	88.000	−0.098	0.943
Filled pause (%)	2.19	2.74	1.344	3.13	2.72	2.009	67.000	−1.122	0.277
Total pause (%)	7.97	7.98	3.445	8.85	8.63	3.272	77.000	−0.634	0.548
Duration rates of pauses
Silent pause (%)	33.94	32.68	16.602	31.93	28.69	7.933	89.000	−0.049	0.981
Filled pause (%)	4.41	5.03	2.883	6.84	7.65	4.474	62.000	−1.366	0.183
Total pause (%)	38.35	36.75	17.231	38.77	36.57	10.476	86.000	−0.195	0.867
Frequency of pauses
Silent pause (1/s)	0.52	0.53	0.128	0.53	0.54	0.135	88.000	−0.098	0.943
Filled pause (1/s)	0.20	0.19	0.129	0.28	0.27	0.152	62.000	−1.366	0.183
Total pause (1/s)	0.73	0.77	0.204	0.81	0.78	0.214	73.000	−0.830	0.427
Average durations of pauses
Silent pause (s)	0.64	0.56	0.255	0.62	0.62	0.164	82.000	−0.390	0.719
Filled pause (s)	0.21	0.21	0.041	0.24	0.23	0.097	76.000	−0.683	0.516
Total pause (s)	0.53	0.47	0.210	0.49	0.49	0.099	87.000	−0.146	0.905

The P-values indicating statistically significant differences (at the P<0.05 level) are in bold.

M indicates mean; MCI, mild cognitive impairment; Mdn, median; T2DM, type 2 diabetes mellitus.