Table 3

Body composition, overfat and sarcopenia according to the body fat normality curves measured by DXA

PsA

Ps

Control

P

N = 45

N = 52

N = 98

TLM (kg)

35.28 ± 3.96

37.45 ± 5.32

35.93 ± 4.81

0.06

TBF (%)

46 ± 5.7*

43.8 ± 6.2

43.4 ± 5.5

0.04

Within normality (%)

15.6^†‡

34.6

37.8

0.02

Above normality (%)

84.4^†‡

65.4

62.2

0.02

Overfat (%)

86.7 ^{|| §}

61.5

58.2

0.03

Sarcopenia (%)

11.1

5.8

6.1

0.50

Obesity-sarcopenia (%)

11.1

3.8

4.1

0.19

DXA, dual X-ray absorptiometry; Ps, psoriasis; PsA,: psoriatic arthritis; TBF, total body fat; TLM, total lean mass.

*P = 0.03 (PsA vs. control)

^†P < 0.05(PsA vs Ps)

^‡P < 0.05 (PsA vs control)

^§ P < 0.01 (PsA vs. Ps)

^|| P < 0.01 (PsA vs. control)

Pedreira et al. Arthritis Research & Therapy 2011 13:R16   doi:10.1186/ar3240