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Table 3 Changes in BMI, muscle mass, and fat mass between before and during the COVID-19 pandemic

From: Changes in body composition of patients undergoing hemodialysis during the coronavirus disease 2019 pandemic: a retrospective longitudinal study

 

Body mass index (kg/m2)

 

Muscle mass (kg)

 

Fat mass (kg)

 
 

Before COVID-19

During COVID-19

p value

Before COVID-19

During COVID-19

p value

Before COVID-19

During COVID-19

p value

Overall (n = 115)

22.1 [19.8–25.6]

22.7 [20.2–25.8]

0.01

42.9 [37.5–49.4]

42.7 [37.3–50.1]

0.30

13.7 [9.4–19.0]

14.4 [9.1–20.3]

0.01

Sex

         

Male (n = 72)

22.9 [20.7–26.4]

23.2 [21.3–27.0]

 < 0.001

47.3 [42.9–52.1]

48.1 [43.1–53.8]

0.13

14.4 [8.8–19.7]

16.0 [8.8–20.8]

0.01

Female (n = 43)

21.1 [19.0–23.4]

20.8 [19.2–23.5]

0.75

36.5 [32.4–39.1]

36.2 [33.2–39.2]

0.63

11.9 [10.0–17.9]

12.2 [9.1–18.0]

0.75

Age

         

 < 60 years (n = 31)

26.1 [21.8–29.9]

25.4 [22.1–30.1]

0.04

50.2 [41.4–56.9]

50.1 [40.5–55.8]

0.73

17.6 [12.0–25.7]

18.8 [10.4–25.7]

0.07

60–75 years (n = 55)

21.4 [19.3–23.8]

21.4 [20.0–23.9]

0.08

42.9 [36.6–48.4]

42.0 [36.2–48.9]

0.51

11.5 [7.8–16.5]

12.2 [8.4–18.9]

0.56

 ≥ 75 years (n = 29)

22.1 [19.2–24.6]

22.6 [19.1–24.5]

0.08

39.7 [34.9–44.4]

40.9 [34.4–43.9]

0.34

14.2 [8.6–18.2]

14.7 [9.2–19.3]

0.12

J-CHS

   

Robust (n = 21)

21.5 [19.1–25.2]

21.5 [19.3–23.8]

0.30

39.1 [34.3–50.4]

41.2 [34.9–50.2]

0.59

12.4 [10.1–15.7]

12.2 [9.4–17.1]

0.12

Prefrail (n = 68)

22.3 [20.6–25.3]

23.0 [20.4–25.3]

0.01

44.1 [37.9–49.7]

43.7 [38.1–50.2]

0.13

14.2 [9.7–19.2]

14.9 [9.4–20.3]

0.14

Frail (n = 26)

21.5 [19.0–26.6]

21.3 [19.3–27.1]

0.20

42.0 [37.6–48.9]

40.7 [36.8–48.6]

0.95

13.2 [5.6–21.8]

13.9 [7.8–22.4]

0.33

  1. Data are presented as median [interquartile range]. p-values are calculated using Wilcoxon signed-rank test. J-CHS Japanese version of the Cardiovascular Health Study