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. 2018 Mar 26;13(3):e0193568. doi: 10.1371/journal.pone.0193568

Table 3. Mean differences of cognitive scales after 1 year of follow-up between control and intervention group and stratified by nutritional status.

CONTROL
(n = 44)
INTERVENTION
(n = 34)
DIFFERENCES BETWEEN CONTROL AND INTERVENTION
(95% CI)
p1 p2
Pfeiffer
+0.41 (1.48)
+0.09 (1.44)
+0.32 (-0.34 to +0.99)
0.341
0.541
At risk of undernutrition +0.42 (1.56) +0.39 (1.47) +0.03 (-0.80 to +0.86) 0.936 0.774
Well-nourished +0.36 (1.29) -0.55 (1.21) +0.91 (-0.20 to +2.02) 0.104 0.140
MEC total -1.18 (3.55) -0.82 (3.69) -0.36 (-2.00 to +1.28) 0.665 0.867
At risk of undernutrition -1.33 (3.63) -1.52 (3.76)* +0.19 (-1.82 to +2.19) 0.851 0.669
Well-nourished -0.72 (3.41) +0.63 (3.20) -1.36 (-4.31 to +1.58) 0.345 0.465
MEC Orientation -0.39 (1.65) 0.00 (1.30) -0.39 (-1.07 to +0.30) 0.265 0.272
At risk of undernutrition -0.42 (1.78) -0.13 (1.32) -0.29 (-1.17 to +0.59) 0.506 0.542
Well-nourished -0.27 (1.19) +0.27 (1.27) -0.55 (-1.64 to +0.55) 0.312 0.282
MEC Fixation -0.02 (0.15) -0.21 (1.04) +0.18 (-0.13 to +0.50) 0.251 0.406
At risk of undernutrition -0.03 (0.17) -0.30 (1.26) +0.27 (-0.17 to +0.72) 0.221 0.348
Well-nourished 0 0 - - -
MEC Concentration -0.23 (1.55) -0.53 (1.81)* +0.30 (-0.46 to +1.06) 0.431 0.297
At risk of undernutrition -0.36 (1.27 -0.74 (1.76)* +0.38 (-0.44 to +1.19) 0.358 0.210
Well-nourished +0.18 (2.22 -0.09 (1.92) +0.27 (-1.58 to +2.12) 0.762 0.534
MEC Memory -0.11 (0.92) +0.27 (1.02) -0.38 (-0.82 to +0.06) 0.090 0.075
At risk of undernutrition -0.03 (0.88) +0.04 (0.88) -0.07 (-0.55 to +0.41) 0.759 0.587
Well-nourished -0.36 (1.03) +0.73 (1.19) -1.09 (-2.08 to -0.10) 0.032 0.026
MEC Language -6.32 (1.62)*** -6.11 (1.81)*** -0.20 (-0.98 to +0.58) 0.608 0.442
At risk of undernutrition -6.24 (1.77)*** -6.04 (1.82)*** -0.20 (-1.17 to +0.78) 0.684 0.417
Well-nourished -6.54 (1.12)** -6.27 (1.84)** -0.27 (-1.63 to +1.09) 0.681 0.837
GDS +0.16 (0.78) +0.12 (0.64) +0.04 (-0.29 to +0.37) 0.802 0.995
At risk of undernutrition +0.15 (0.79) +0.22 (0.73) -0.07 (-0.49 to +0.35) 0.754 0.476
Well-nourished +0.18 (0.75) -0.09 (0.30) +0.27 (-1.63 to +1.09) 0.277 0.247
Verbal fluency -0.37 (3.69) -0.32 (2.46) -0.05 (-1.51 to +1.42) 0.948 0.822
At risk of undernutrition -0.81 (3.44) -0.61 (2.14) -0.20 (-1.84 to +1.43) 0.803 0.993
Well-nourished +0.91 (4.23) +0.27 (3.04) +0.64 (-2.64 to +3.91) 0.689 0.947
Clock Test +0.02 (2.57) -0.65 (1.95) +0.67 (-0.38 to +1.72) 0.210 0.144
At risk of undernutrition -0.27 (1.96) -1.04 (2.03)* +0.77 (-0.31 to +1.85) 0.159 0.162
Well-nourished +0.91 (3.85) +0.18 (1.54) +0.73 (-1.89 to +3.34) 0.567 0.265

Values are presented as means (SD)

1: p values were calculated using Unpaired t test to assess differences between groups

2: p values were calculated using U Mann-Whitney test to assess differences between groups

*** p <0.001 for differences between baseline and 1-yr follow-up in each group using Wilcoxon test

** p <0.01 for differences between baseline and 1-yr follow-up in each group using Wilcoxon test

*p <0.05 for differences between baseline and 1-yr follow-up in each group using Wilcoxon test