Table 3 Pearson bivariate correlations between RDW and other variables based on different genders

Age (years)

0.139**(0.000)

0.135**(0.000)

BMI (kg/m2)

− 0.037*(0.004)

− 0.016(0.254)

Waist (cm)

0.025(0.054)

−0.019(0.055)

SBP (mmHg)

0.070**(0.000)

0.058**(0.000)

DBP (mmHg)

−0.003(0.831)

0.002(0.820)

HDL (mmol/L)

0.027*(0.039)

0.064**(0.000)

LDL (mmol/L)

0.079**(0.000)

0.060**(0.000)

TC (mmol/L)

0.037**(0.005)

0.050**(0.000)

TG (mmol/L)

−0.120**(0.000)

− 0.074**(0.000)

FG (mmol/L)

−0.048**(0.000)

−0.016**(0.000)

BUN (mmol/L)

0.068**(0.000)

0.002(0.859)

TBIL (μmol/L)

0.015(0.255)

0.057**(0.000)

CRP (mg/L)

−0.011(0.726)

−0.014(0.686)

ESR (mm/hr)

−0.017(0.324)

0.000(0.979)

MCV (fL)

−0.084**(0.000)

−0.099**(0.000)

MCH (pg)

0.074**(0.000)

0.093**(0.000)

MCHC(g/L)

−0.088**(0.000)

−0.108**(0.000)

RBC (×1012/L)

0.042**(0.001)

0.011(0.422)

HB (g/L)

−0.045**(0.001)

−0.081**(0.000)

WBC(×1012/L)

0.070** (0.000)

0.012 (0.239)