Table 2 Sarcopenia and its components in male and female participants stratified by serum 25(OH)D levels.

From: Age but not vitamin D is related to sarcopenia in vitamin D sufficient male elderly in rural China

 

Males

(n = 211)

Females

(n = 157)

Q1 (n = 73)

Q2 (n = 68)

Q3 (n = 70)

P value

Q1 (n = 52)

Q2 (n = 53)

Q3 (n = 52)

P value

Calf circumference (cm)

34.35 ± 3.40

34.40 ± 3.13

34.61 ± 3.22

0.966

34.54 ± 2.83

33.11 ± 3.39

33.68 ± 3.13

0.048

HGS (kg)

29.20 ± 6.81

29.48 ± 7.27

28.03 ± 6.49

0.356

22.76 ± 4.70

21.80 ± 4.05

23.46 ± 5.92

0.404

Low HGS (%)

29 (39.7)

28 (41.2)

37 (52.9)

0.228

7 (13.5)

14 (26.4)

8 (15.4)

0.181

SMI (kg/m2)

7.36 ± 0.67

7.47 ± 0.74

7.41 ± 0.73

0.657

6.53 ± 1.28

6.78 ± 1.07

6.82 ± 1.19

0.467

6-meter gait speed (m/s)

1.04 ± 0.21

1.06 ± 0.17

1.07 ± 0.19

0.617

0.96 ± 0.20

0.96 ± 0.22

1.03 ± 0.22

0.234

Time to complete 5 sit-to-stand movements (s)

15.95 ± 3.22

15.43 ± 3.91

16.33 ± 5.71

0.534

16.41 ± 3.89

16.06 ± 3.37

15.98 ± 2.67

0.986

SPPB ≤ 9 points (n, %)

22 (30.1)

16 (23.5)

23 (32.9)

0.463

29 (55.8)

24 (45.3)

29 (55.8)

0.461

Sarcopenia (%)

22 (30.1)

18 (26.5)

22 (31.4)

0.803

8 (15.4)

3 (5.7)

6 (11.5)

0.271

  1. Male participants were divided into Q1 group (25(OH)D ≤ 35.80 ng/ml, n = 73), Q2 group (35.80 ng/ml < 25(OH)D ≤ 45.52 ng/ml, n = 68) and Q3 group (25(OH)D > 45.52 ng/ml, n = 70). Female participants were divided into Q1 group (25(OH)D ≤ 24.72 ng/ml, n = 52), Q2 group (24.72 ng/ml < 25(OH)D ≤ 30.94 ng/ml, n = 53) and Q3 group (25(OH)D > 30.94 ng/ml, n = 52).
  2. Q, quartile; 25(OH)D, 25-hydroxyvitamin D; HGS, handgrip strength; SMI, skeletal muscle index; SPPB, Short Physical Performance Battery.
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