Figure 5.

Calcium:creatinine ratios (Ca:Cr) in spot urine specimens from non-pregnant (A) and pregnant participants (B) following administration of vitamin D3 70,000 IU at day 0. Predicted means and 95% confidence intervals were estimated in a linear regression model using GEE, in which log-transformed Ca:Cr was modeled as a function of time.

Roth et al. Nutrition Journal 2012 11:114   doi:10.1186/1475-2891-11-114
Download authors' original image