Research Article

Hypovitaminosis D and Its Associated Factors in North Algerian Postmenopausal Women: Results of a Cross-Sectional Study

Table 2

Results of the univariate and multivariate logistic regression models for the association of subject characteristics with vitamin D hypovitaminosis with the cutoff value of 17 ng/mL.

Characteristic valueModalities for OR calculationOR (95% CI)

Univariate logistic regression
Age0.41Continuous0.99 (0.96–1.02)
Duration of menopause0.46Continuous0.99 (0.97–1.02)
Parity0.75Continuous1.01 (0.94–1.09)
BMI0.05<30 kg/m2 versus ≥30 kg/m20.61 (0.36–1.01)
Habitat/housing0.32Urban versus rural1.31 (0.76–2.26)
Education level0.81Education versus no education0.82 (0.50–1.33)
Skin phototype0.82Dark versus light1.13 (0.69–1.84)
Veiling0.09Yes or no2.56 (0.84–7.84)
T-score spine0.95Continuous0.99 (0.83–1.18)
DMO spine0.93Abnormal versus normal0.98 (0.58–1.65)
T-score hip0.19Continuous1.12 (0.93–1.36)
DMO hip0.67Abnormal versus normal0.80 (0.49–1.31)
Multivariate logistic regression
BMI0.02<30 kg/m2 versus ≥30 kg/m21.826 (1.081–3.083)
Veiling0.0353Yes or no3.526 (1.090–11.400)
Season<0.0001Summer versus other pooled seasons4.159 (2.456–7.043)

value was calculated for each variable according to the Mann–Whitney test or chi-square test.