Table 4 Multiple logistic regression analysis of the influence of some clinical prognostic variables on vitamin D status (deficiency vs. insufficiency/optimal) of study population

Age (years)*

1.023 (1.004–1.041)

.015

Sex (male/female)*

.478 (.297–.770)

.002

BMI

.964 (.926–1.003)

.073

Sun exposure

1.012 (.929–1.102)

.791

Diet

1.023 (.951–1.101)

.545

Physical activity

1.065 (.787–1.441)

.684

Smoking

1.034 (.783–1.367)

.812

Diabetes mellitus

1.143 (.634–2.061)

.656

Hs CRP (mg/L)

.996 (.946–1.048)

.876

PTH (pg/ml)

1.001 (.994–1.008)

.718