Fig. 2From: Impact of vitamin D deficiency on maternal and birth outcomes in the Saudi population: a cross-sectional studyCorrelation between vitamin D levels and pregnancy status. a A weak negative correlation between vitamin D levels and parity (r = −0.07, p = 0.3). b A significant negative correlation between the vitamin D levels and the fasting levels of oral glucose tolerance test (OGTT) among females aging more than 35-year-old (r = −0.2, p = 0.03)Back to article page