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Table 2 Body composition by dual energy X-ray absorptiometry (DEXA) scan

From: Abnormal body composition, cardiovascular endurance, and muscle strength in pediatric SLE

Variable

≥30 % Body Fat

<30 % Body Fat

P-Value

≤60 % Lean Muscle Mass

>60 % Lean Muscle Mass

P-value

N = 8

N = 2

N = 4

N = 6

Mean Age, years ± Standard deviation (SD)

16.3 ± 2.7

12.5 ± 3.5

0.4

15.7 ± 4

15.3 ± 2.7

0.8

African American, n

6

2

0.4

4

4

0.2

Years of SLE ± SD

4.1 ± 2.5

4.5 ± 0.7

0.7

3.3 ± 1.6

5.5 ± 2.6

0.2

Physically Active in the past year

 Yes

6

2

0.9

2

6

0.1

 No

2

0

2

0

Malar rash

 Present

6

0

0.1

4

2

0.07

 Absent

2

2

0

4

 

Kidney Disease

 Present

4

1

0.9

4

1

0.04

 Absent

4

1

0

5

dsDNA Antibody

 Present

8

1

0.2

4

5

0.9

 Absent

0

1

0

1

Ro/La Antibodies

 Present

2

0

0.9

1

1

0.9

 Absent

6

2

3

5

Smith Antibody

 Present

3

0

0.9

3

0

0.03

 Absent

5

2

1

6

Low C3/C4

 Present

2

0

0.9

2

0

0.1

 Absent

6

2

2

6

Mean SLEDAI, ± SD

1.3 ± 1.1

0

0.06

2 ± 1.4

0.4 ± 0.2

0.07

Prednisone

 Taking

4

0

0.4

3

1

0.1

 Not taking

4

2

1

5

Cumulative prednisone dose, mg (range)

900 (0–3600)

0

0.1

1725 (0–3600)

50 (0–300)

0.1

Hydroxychloroquine

 Taking

8

2

--

4

6

--

 Not taking

Methotrexate

 Taking

2

0

0.9

1

1

0.9

 Not taking

6

2

3

5

Mycophenolate mofetil

 Taking

3

1

0.9

2

2

0.9

 Not taking

5

1

2

4