| Title |
Low Vitamin D Status in Mother-Newborn Pairs in Greece
|
|---|---|
| Published in |
Calcified Tissue International, July 2006
|
| DOI | 10.1007/s00223-006-0007-5 |
| Pubmed ID | |
| Authors |
P. Nicolaidou, Z. Hatzistamatiou, A. Papadopoulou, J. Kaleyias, E. Floropoulou, E. Lagona, V. Tsagris, C. Costalos, A. Antsaklis |
| Abstract |
Adequate vitamin D status during pregnancy is crucial to assure normal fetal skeletal growth and to provide the vitamin D needed for infants' stores. To determine the actual situation in Greece, we evaluated serum 25-hydroxyvitamin D (25[OH]D), calcium (Ca), phosphorus (P), alkaline phosphatase (ALP), parathyroid hormone (PTH), osteocalcin (OC), and calcitonin (CT) concentrations in 123 healthy mother-newborn pairs recruited from a public hospital of the sunny Athenian region. Blood samples were obtained from pregnant women at term and their neonates (cord blood). The study was conducted between June 2003 and May 2004. None of the mothers has been prescribed vitamin D supplements. Maternal 25(OH)D levels (16.4 [11-21.1] ng/mL) were significantly lower than umbilical venous blood concentrations (20.4 [13.9-30.4] ng/mL) (P < 0.001). A strong correlation was observed between maternal and infant 25(OH)D concentrations (r = 0.626, P < 0.001). Twenty-four (19.5%) mothers and 10 (8.1%) neonates had 25(OH)D <10 ng/mL. Pregnant women who delivered in summer and autumn reported higher levels of 25(OH)D (18.9 [12.9-23.3] ng/mL) than those who delivered in winter and spring (14.6 [10.1-18.5] ng/mL) (P = 0.006). Mothers with a darker phototype had lower levels of serum 25(OH) D than those with a fair phototype (P = 0.023). Umbilical venous blood Ca, P, OC, and CT levels were significantly higher than maternal venous blood levels (P < 0.001). PTH umbilical levels were lower than maternal levels (P < 0.001). Apparently, the abundant sunlight exposure in Athens is not sufficient to prevent hypovitaminosis D. Pregnant women should be prescribed vitamin D supplementations, and the scientific community should consider vitamin D supplementation of foods. |
Mendeley readers
The data shown below were compiled from readership statistics for 85 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 1% |
| Unknown | 84 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 13 | 15% |
| Student > Bachelor | 11 | 13% |
| Student > Postgraduate | 9 | 11% |
| Student > Master | 9 | 11% |
| Researcher | 8 | 9% |
| Other | 22 | 26% |
| Unknown | 13 | 15% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 38 | 45% |
| Agricultural and Biological Sciences | 7 | 8% |
| Nursing and Health Professions | 6 | 7% |
| Biochemistry, Genetics and Molecular Biology | 4 | 5% |
| Pharmacology, Toxicology and Pharmaceutical Science | 4 | 5% |
| Other | 10 | 12% |
| Unknown | 16 | 19% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 June 2013.
All research outputs
#7,480,713
of 22,867,327 outputs
Outputs from Calcified Tissue International
#544
of 1,760 outputs
Outputs of similar age
#22,985
of 65,720 outputs
Outputs of similar age from Calcified Tissue International
#2
of 8 outputs
Altmetric has tracked 22,867,327 research outputs across all sources so far. This one is in the 44th percentile – i.e., 44% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,760 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.9. This one is in the 35th percentile – i.e., 35% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 65,720 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 15th percentile – i.e., 15% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 8 others from the same source and published within six weeks on either side of this one. This one has scored higher than 6 of them.