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Table 4 Factors associated with 25(OH)D by multiple linear regression for the period between April–June (n = 683)

From: Association between serum 25-hidroxyvitamin D concentrations and ultraviolet index in Portuguese older adults: a cross-sectional study

April–June (n = 683)
Independent variables Sβ (95%CI) P-value
mUVI 0.295 (0.229; 0.362) < 0.001
Age (years) −0.092 (−0.163; −0.022) 0.010
Education (years) - zero −0.078 (−0.148; −0.010) 0.025
Marital Status 0.140 (0.072; 0.209) < 0.001
Skin phenotype - V + VI −0.079 (−0.145; −0.013) 0.019
Cognitive performance (MMSE score) 0.086 (0.016; 0.156) 0.016
Physical Activity - Low −0.102 (−0.172; −0.034) 0.004
Supplement intake 0.246 (0.181; 0.315) < 0.001
Undernutrition status (MNA-SF score) 0.076 (0.008; 0.145) 0.030
BMI (kg/m2) −0.117 (−0.185; −0.050) 0.001
  1. CI confidence interval, MNA®-SF Mini Nutritional Assessment® – Short Form, Standardized regression coefficient