From: Predicting probable Alzheimer’s disease using linguistic deficits and biomarkers
PrADG | HEG | t | df | p | 95% | |
---|---|---|---|---|---|---|
MEAN(SD) | MEAN(SD) | CI(Difference) | ||||
Confounding feature | ||||||
Age | 70.45(8.916) | 65.26(8.388) | 3.621 | 148 | <0.000* | 2.36 to 8.01 |
Syntactic features | ||||||
Coordinated sentences | 5.09(3.22) | 4.85(2.99) | 0.55 | 196 | 0.584 | -0.63 to 1.11 |
Subordinated sentences | 5.42(3.63) | 5.13(3.19) | 0.60 | 196 | 0.547 | -0.66 to 1.25 |
Reduced sentences | 2.95(2.48) | 4.08(2.57) | -3.15 | 196 | 0.002* | -1.84 to -0.42 |
Number of Predicates | 5.54 (3.44) | 6.94(3.53) | -2.83 | 196 | 0.005* | -2.38 to -0.43 |
Avr. predicates per sentence | 0.42(0.19) | 0.58(0.22) | -5.48 | 196 | <0.000* | -0.22 to -0.10 |
Number of dependencies | 100.90(53.36) | 100.81(51.44) | 0.01 | 196 | 0.990 | -14.60 to 14.78 |
Avr.dependency per sentence | 8.21(2.69) | 8.78(2.36) | -1.58 | 196 | 0.115 | -1.28 to 0.14 |
Dependency distance | 16.21(7.75) | 17.09(7.05) | -0.83 | 196 | 0.405 | -2.95 to 1.197 |
Production rules | 128.61(52.00) | 126.75(46.35) | 0.26 | 196 | 0.791 | -11.95 to 15.67 |
Lexical features | ||||||
Utterances | 50.52(35.61) | 31.05(15.49) | 4.99 | 196 | <0.000* | 11.77 to 27.16 |
MLU | 2.65(1.70) | 4.03(2.25) | -4.86 | 196 | <0.000* | -1.94 to -0.82 |
Function words | 58.00(35.84) | 59.71(35.33) | -0.34 | 196 | 0.736 | -11.68 to 8.27 |
Unique words | 115.92(63.96) | 116.03(59.92) | -0.01 | 196 | 0.990 | -17.48 to 17.26 |
Word count | 127.79(72.62) | 127.69(68.45) | 0.01 | 196 | 0.992 | -19.68 to 19.88 |
Character length | 562.35(313.33) | 583.21(316.65) | -0.47 | 196 | 0.642 | -109.15 to 67.44 |
Total sentences | 14.01(8.33) | 12.48(5.56) | 1.52 | 196 | 0.131 | -0.46 to 3.51 |
Repetitions | 2.09(3.08) | 0.70(1.03) | 4.27 | 196 | <0.000* | 0.75 to 2.04 |
Revision | 4.54(5.27) | 2.02(2.20) | 4.38 | 196 | <0.000* | 1.38 to 3.65 |
Number of morphemes | 117.35(76.56) | 117.09(69.65) | 0.02 | 196 | 0.980 | -20.25 to 20.78 |
Trailing off | 0.85(1.18) | 0.14(0.38) | 5.67 | 196 | <0.000* | 0.46 to 0.95 |
Word replacement | 1.28(1.37) | 0.44(0.77) | 5.30 | 196 | <0.000* | 0.53 to 1.15 |
Incomplete words | 5.56(4.05) | 3.11(3.42) | 4.59 | 196 | <0.000* | 1.39 to 3.49 |
Filler words | 6.47(6.89) | 4.30(3.53) | 2.79 | 196 | 0.006* | 0.64 to 3.71 |