Table 2: Bivariate analysis of the correlations between serum 25(OH)D levels and variables in daytime and shift workers.

Characteristics

Daytime workers

Shift workers

Coefficient

P value

Coefficient

P value

Age (years)

0.055

0.086

0.119

0.001

BMI (kg/m2)

-0.107

0.001

-0.028

0.435

WC (cm)

-0.102

0.001

0.016

0.661

WBR

0.053

0.099

0.090

0.013

SBP (mmHg)

-0.057

0.076

-0.058

0.109

DBP (mmHg)

-0.062

0.050

-0.016

0.665

FPG (mmHg)

-0.019

0.552

0.088

0.016

HDL (mg/dL)

0.055

0.085

0.014

0.706

TG (mg/dL)

-0.176

< 0.001

-0.134

< 0.001

Cr (mg/dL)

0.044

0.166

0.086

0.019

Number of MetS component

-0.105

0.001

-0.003

0.928

BMI: Body Mass Index; WC: Waist Circumference; WBR: Waist-BMI Ratio; SBP: Systolic Blood Pressure; DBP: Diastolic Blood Pressure; FPG: Fasting Plasma Glucose; HDL-C: High Density Lipoprotein Cholesterol; TG: Triglyceride; Cr: Serum Creatinine; Mets: Metabolic Syndrome