Fig. 1.

Correlations between crude vitamin D intake assessed by (a) the WRH-FFQ and the average of three 24 h dietary recalls, (b) the FFQ and the biomarker of vitamin D status (plasma 25-hydroxyvitamin D (25(OH)D)) and (c) the 24 h recalls and the biomarker of vitamin D status among Serbian women of reproductive age, November 2010–April 2011: ●, participants without 25(OH)D status determined (n 44); ○, participants with 25(OH)D status determined (n 20). All correlations were significant: (a) r=0·701, P<0·0001; (b) r=0·422, P<0·05; (c) r=0·404, P<0·05 (WRH-FFQ, Women and Reproductive Health FFQ)