Table 1

Unadjusted and multivariate adjusted Spearman's correlation coefficients of baseline serum leptin and nutritional clinical and laboratory parameters in the study population at baseline

Raw

Adjusteda

R

P

R

P


Dietary intake

Energy intake (kcal/kg/d)

-0.133

0.21

-0.170

0.17

Protein intake (g/kg/d)

-0.231

0.027

-0.177

0.15

nPNA

0.005

0.97

0.079

0.46

Biochemical markers

Albumin (g/dL)

0.216

0.030

0.065

0.55

Creatinine (mg/dL)

-0.014

0.89

0.082

0.44

Cholesterol (mg/dL)

0.217

0.029

0.060

0.57

Transferrin (mg/dL)

0.161

0.11

0.056

0.61

IL-6 (mcg/ml)

-0.105

0.31

0.012

0.92

Anthropometric measurements

BMI (kg/m2)

0.758

< 0.001

-

-

TSF (mm)

0.696

< 0.001

0.319

0.008

MAC (cm)

0.751

< 0.001

0.491

< 0.001

MAMC (cm)

0.486

< 0.001

0.378

0.001

Bioimpedance analysis

FMI (kg/m2)

0.862

< 0.001

-

-

FFMI (kg/m2)

0.247

0.013

0.296

0.014

Phase angle (°)

0.273

0.006

0.128

0.297


Correlation coefficient values ≥ 0.25 appear in bold.

a All case-mix-adjusted models include age, gender, DM status, dialysis vintage, CV disease in the past and fat mass.

Abbreviations: nPNA, normalized protein nitrogen appearance; IL-6, interleukin-6; BMI, body mass index; TSF, triceps skinfold thickness; MAC, mid-arm circumference; MAMC, mid-arm muscle circumference calculated; FMI, fat mass index; FFMI, fat-free mass index, DM, diabetes mellitus; CV, cardio-vascular.

Beberashvili et al. Nutrition Journal 2011 10:68   doi:10.1186/1475-2891-10-68

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