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Table 2 Unadjusted models of the association of vitamin D with quality of life and treatment satisfaction scores

From: Vitamin D deficiency is associated with poorer satisfaction with diabetes-related treatment and quality of life in patients with type 2 diabetes: a cross-sectional study

  Vitamin D concentrationa Vitamin D deficiencyb
Coefficient SE p Coefficient SE p
Quality of life variables
 Average weighted impact: ADDQoL score 0.005 −0.007 0.430 −0.301 − 0.127 0.020
 Present quality of life 0.007 −0.007 0.370 −0.292 −0.141 0.040
 Diabetes-specific quality of life 0.016 −0.006 0.006 −0.393 −0.113 0.001
Treatment satisfaction variables
 Final score of DTSQ 0.064 −0.040 0.110 −2.212 −0.759 0.004
 Perceived hyperglycaemias frequency −0.015 0.014 0.320 0.333 −0.280 0.240
 Perceived hypoglycaemias frequency 0.018 −0.012 0.130 0.034 −0.235 0.890
  1. Regression coefficient (together with its standard error and p-value) estimated by simple linear regression models associated to vitamin D (25(OH) D serum concentrationa, or the presence of vitamin D deficiency defined as levels of 25(OH) D < 15 ng/mL (37.4 nmol/L)b. Dependent variables are each of the three independent scores from each of the questionnaires, ADDQoL and DTSQ