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Table 3 MNA-SF, physical activity, body composition, and physical performance outcomes

From: Effects of a low-protein nutritional formula with dietary counseling in older adults with chronic kidney disease stages 3–5: a randomized controlled trial

 

Intervention group (n = 24)

Control group (n = 23)

P-valueb

Baseline

3 months

Change in value

(3 months-Baseline)a

Baseline

3 months

Change in value

(3 months-Baseline)a

MNA-SF scores

12

(11–14)

13

(11–14)

0

(0–2)

13

(11–14)

13

(13–14)

0

(0–1)

0.95

Physical activity

 IPAQ-SF scores (MET-min/week)

953

(223–2993)

1040

(473–2993)

0

(0–256)

2319

(693–4986)

1446

(882–4452)

0

(-693–0)

0.084

Body composition

 Body weight (kg)

61.0

(48.2–68.1)

61.0

(50.1–68.1)

0.4

(-1.5–1.6)

67.3

(54.8–73.2)

67.2

(57.1–72.9)

-0.3

(-1.0–0.1)

0.35

 BMI (kg/m2)

23.5

(20.8–25.2)

23.6

(20.7–25.4)

0.1

(-0.2–0.9)

24.2

(23.0–27.4)

24.6

(23.0–27.5)

0.0

(-0.3–0.7)

0.51

 Body fat (%)

20.4

(17.8–23.3)

17.9

(13.9–25.3)

-1.6

(-4.5–1.2)

23.4

(18.8–28.7)

25.1

(21.1–30.5)

-0.2

(-1.6–2.0)

0.10

 Fat mass (kg)

12.3

(9.9–15.0)

10.9

(6.3–16.2)

-0.8

(-2.7–0.9)

15.7

(10.3–20.5)

15.6

(11.6–19.5)

-0.1

(-1.0–1.5)

0.16

 Muscle mass (kg)

44.5

(35.5–52.0)

45.8

(35.7–50.9)

0.2

(-0.7–2.4)

45.8

(39.4–50.9)

43.9

(39.4–50.6)

0.0

(-1.3–0.5)

0.19

 Fat-free mass (kg)

47.0

(37.5–54.9)

48.3

(37.8–53.6)

0.3

(-0.8–2.6)

48.9

(41.9–53.7)

46.3

(41.9–53.4)

0.0

(-1.4–0.6)

0.19

 Extracellular water (kg)

14.7

(12.7–16.3)

14.9

(12.9–16.2)

0.0

(-0.4–0.6)

15.4

(13.9–16.0)

15.4

(13.9–16.1)

0.0

(-0.3–0.2)

0.59

 Intracellular water (kg)

17.9

(14.0–23.3)

18.9

(15.1–23.2)

0.3

(-0.4–1.3)

19.4

(16.8–22.1)

19.1

(16.7–21.8)

0.2

(-0.8–1.3)

0.47

 Skeletal muscle index (kg)

7.5

(6.3–8.5)

7.5

(6.3–8.7)

0.0

(-0.2–0.2)

7.8

(6.5–8.7)

7.6

(6.7–9.0)

0.0

(-0.2–0.3)

0.83

 Resistance at 50 kHz (Ω)

564

(504–622)

552

(472–615)

-8

(-36–12)

549

(502–594)

527

(486–598)

2

(-30–11)

0.58

 Phase angle (°)

5.5

(4.7–6.0)

5.5

(5.1–6.9)

0.0

(-0.5–0.5)

5.6

(5.0–5.9)

5.3

(5.0–5.7)

-0.1

(-0.6–0.1)

0.18

Physical performance

 Hand grip strength (kg)

24.1

(17.0–30.6)

25.4

(17.3–33.3)

0.8

(-0.8–3)

26.9

(19.6–31.4)

25.6

(18.0–30.3)

-1.2

(-2.6–0.1)†

0.004**

 Gait speed (m/s)

0.85

(0.55–0.95)

0.88

(0.59–1.17)

0.07

(-0.02–0.22)†

0.91

(0.74–1.25)

0.80

(0.64–1.11)

-0.03

(-0.19–0.06)

0.009**

  1. Data are expressed as the median (interquartile range)
  2. MNA-SF Mini Nutritional Assessment Short-Form, IPAQ-SF International Physical Activity Questionnaire-Short Form, BMI body mass index
  3. aGroups from baseline to three months were compared through the Wilcoxon signed-rank test (†P < 0.05)
  4. bValue change differences of the two groups as determined by the Mann–Whitney U test (*P < 0.05 and ** P < 0.01)
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BMC Nephrology

ISSN: 1471-2369

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