Fig. 3From: Calcifediol (25-hydroxyvitamin D) improvement and calcium-phosphate metabolism of alendronate sodium/vitamin D3 combination in Chinese women with postmenopausal osteoporosis: a post hoc efficacy analysis and safety reappraisalA dot plot of absolute changes in serum 25(OH) D levels (ng/mL) at year one against baseline level (ng/mL). Person correlation coefficient = − 0.70 (95% CI, [− 0.54, − 0.85]; P < 0.001)Back to article page