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Table 2 Correlation between 25-hydroxyvitamin, daily dietary calcium intake and other variables in all participants

From: Self-reported sleep bruxism is associated with vitamin D deficiency and low dietary calcium intake: a case-control study

 

BMI (kg/m2)

HADS-anxiety score

HADS- depression score

Daily dietary calcium intake (mg/day)

Serum 25-hydroxyvitamin D (ng/mL)

Age (Years)

r = 0.49

p < 0.001

r = −0.15

p = 0.14

r = 0.08

p = 0.46

r = 0.09

p = 0.40

r = 0.16

p = 0.11

BMI (kg/m2)

–

r = −0.12

p = 0.23

r = 0.04

p = 0.73

r = 0.06

p = 0.59

r < 0.01

p = 0.98

HADS-anxiety score

–

–

r = 0.64

p < 0.001

r = 0.05

p = 0.66

r = −0.25

p = 0.01

HADS- depression score

–

–

–

r = −0.05

p = 0.64

r = −0.13

p = 0.21

Daily dietary calcium intake (mg/day)

–

–

–

–

r = 0.17

p = 0.09

  1. Spearman correlation analysis (p-values were 2-tailed and considered significant at < 0.05 are shown in bold). r, Spearman’s correlation coefficient; HADS Hospital Anxiety and Depression Scale, BMI Body Mass Index