| Title |
Cord blood vitamin D status and neonatal outcomes in a birth cohort in Quebec, Canada
|
|---|---|
| Published in |
Archives of Gynecology and Obstetrics, September 2015
|
| DOI | 10.1007/s00404-015-3899-3 |
| Pubmed ID | |
| Authors |
Catherine Morgan, Linda Dodds, Donald B. Langille, Hope A. Weiler, B. Anthony Armson, Jean-Claude Forest, Yves Giguère, Christy G. Woolcott |
| Abstract |
Some evidence suggests that low maternal vitamin D status adversely affects perinatal health but few studies have examined cord blood vitamin D status. This project aimed to determine the association between the cord blood concentration of 25-hydroxyvitamin D [25(OH)D] and neonatal outcomes. A nested case-control study was conducted in Quebec City, Canada from 2005 to 2010. Included were 83 cases of low birthweight (LBW; <2500 g), 301 cases of small for gestational age (SGA; <10th percentile), 223 cases of preterm birth (PTB; <37 weeks' gestation), and 1027 controls. Levels of 25(OH)D were determined by chemiluminescence immunoassay. Adjusted odds ratios (OR) and 95 % confidence intervals (CI) were estimated with logistic regression. Cord blood [25(OH)D] <50 nmol/L was associated with a lower risk of LBW compared to [25(OH)D] ≥75 nmol/L (OR 0.47 95 % CI 0.23-0.97). For 25(OH)D levels 50-75 nmol/L, a significant association was not demonstrated (OR 0.58, 95 % CI 0.34-1.01). No significant associations were observed between [25(OH)D] and either SGA or PTB after adjustment. Although our findings suggest that [25(OH)D] <50 nmol/L is associated with reduced risk of having a LBW infant, prenatal vitamin D recommendations require an examination of the literature that considers the full spectrum of maternal and neonatal outcomes. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 77 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 77 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 9 | 12% |
| Student > Ph. D. Student | 8 | 10% |
| Other | 7 | 9% |
| Researcher | 7 | 9% |
| Student > Bachelor | 6 | 8% |
| Other | 13 | 17% |
| Unknown | 27 | 35% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 27 | 35% |
| Nursing and Health Professions | 9 | 12% |
| Biochemistry, Genetics and Molecular Biology | 6 | 8% |
| Agricultural and Biological Sciences | 4 | 5% |
| Unspecified | 2 | 3% |
| Other | 3 | 4% |
| Unknown | 26 | 34% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. 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 27 September 2015.
All research outputs
#19,221,261
of 23,815,455 outputs
Outputs from Archives of Gynecology and Obstetrics
#1,434
of 2,066 outputs
Outputs of similar age
#200,072
of 276,195 outputs
Outputs of similar age from Archives of Gynecology and Obstetrics
#22
of 37 outputs
Altmetric has tracked 23,815,455 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,066 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.5. This one is in the 20th percentile – i.e., 20% 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 276,195 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 37 others from the same source and published within six weeks on either side of this one. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.