The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Vitamin D, PTH and calcium levels in pregnant women and their neonates
Abstract
Summary: Objectives To determine the prevalence of vitamin D deficiency in pregnant women and their neonates and to examine factors associated with vitamin D deficiency. Design and patients Population‐based study of pregnant women and their neonates from South‐eastern Sydney, Australia. Measurements Serum 25 hydroxy‐vitamin D (25‐OHD), PTH, calcium, albumin, phosphate and alkaline phosphatase were measured in women at 23–32 weeks gestation and on cord blood at delivery. Maternal skin phototype was recorded using the Fitzpatrick scale. Results Vitamin D deficiency (defined as 25‐OHD ≤ 25 nmol/l) was found in 144 of 971 (15%) women and 98 of 901 (11%) neonates. Median 25‐OHD was 52 nmol/l (range 17–174) in mothers and 60 nmol/l (17–245) in neonates. Maternal 25‐OHD levels varied by season, with lowest levels in late winter/early spring (P < 0·001). Factors associated with maternal vitamin D deficiency in multiple logistic regression were (OR, 95% CI): maternal birthplace outside Australia: 2·2 (1·4–3·5, P = 0·001), dark skin phototype: 2·7 (1·6–4·5, P < 0·001), wearing a veil: 21·7 (11·7–40·3, P < 0·001) and younger maternal age: 0·93 (0·89–0·97, P = 0·001). Maternal vitamin D deficiency increased the risk of neonatal vitamin D deficiency (OR 17·2, 95% CI 8·8–34·3) and birth weight was lower among infants of deficient vs. sufficient mothers: mean (SD) 3245 g (545) vs. 3453 g (555), P < 0·001. Conclusions Vitamin D deficiency is common among pregnant women; immigrant, veiled and dark skinned women are at greatest risk. Maternal vitamin D deficiency increases the risk of neonatal vitamin D deficiency and lower birth weight.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
The validity and practicality of sun-reactive skin types I through VI
Fitzpatrick, T. B. (1988) · Archives of Dermatology · doi:10.1001/archderm.1988.01670060015008 · Cited by 4,339
Javaid, M., Crozier, Sr., Harvey, N., Gale, C., Dennison, E., Boucher, B., Arden, N., Godfrey, K., & Cooper, C. (2006) · The Lancet · doi:10.1016/s0140-6736(06)67922-1 · Cited by 795
Bodnar, L. M., Simhan, H. N., Powers, R. W., Frank, M. P., Cooperstein, E., & Roberts, J. M. (2007) · The Journal of Nutrition · doi:10.1093/jn/137.2.447 · Cited by 675
Maternal vitamin D status during pregnancy and child outcomes
Gale, C. R., Robinson, S. M., Harvey, N. C., Javaid, M. K., Jiang, B., Martyn, C. N., Godfrey, K. M., Cooper, C., & the Princess Anne Hospital Study Group (2008) · European Journal of Clinical Nutrition · doi:10.1038/sj.ejcn.1602680 · Cited by 658
High prevalence of vitamin D deficiency among pregnant women and their newborns in northern India
Sachan, A., Gupta, R., Das, V., Agarwal, A., Awasthi, P. K., & Bhatia, V. (2005) · The American Journal of Clinical Nutrition · doi:10.1093/ajcn/81.5.1060 · Cited by 586
Assay Variation Confounds the Diagnosis of Hypovitaminosis D: A Call for Standardization
Binkley, N., Krueger, D., Cowgill, C. S., Plum, L., Lake, E., Hansen, K. E., DeLuca, H. F., & Drezner, M. K. (2004) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2003-031979 · Cited by 577
Vitamin D supplements in pregnant Asian women: effects on calcium status and fetal growth.
Brooke, O. G., Brown, I. R., Bone, C. D., Carter, N. D., Cleeve, H. J., Maxwell, J. D., Robinson, V. P., & Winder, S. M. (1980) · BMJ · doi:10.1136/bmj.280.6216.751 · Cited by 420
Calcium and Bone Metabolism in Pregnancy and Lactation
Kovacs, C. S. (2001) · Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.86.6.2344 · Cited by 342
High prevalence of vitamin D deficiency in pregnant non-Western women in The Hague, Netherlands1,2
van der Meer, I. M., Karamali, N. S., Boeke, A. J. P., Lips, P. T. A. M., Middelkoop, B. J., Verhoeven, I., & Wuister, J. D. (2006) · American Journal of Clinical Nutrition · doi:10.1093/ajcn/84.1.350 · Cited by 336
Maternal 25-Hydroxyvitamin D and Parathyroid Hormone Concentrations and Offspring Birth Size
Morley, R., Carlin, J. B., Pasco, J. A., & Wark, J. D. (2006) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2005-1479 · Cited by 333
Cited by
Global vitamin D status and determinants of hypovitaminosis D
on behalf of the IOF Committee of Scientific Advisors (CSA) Nutrition Working Group, Mithal, A., Wahl, D. A., Bonjour, J.-P., Burckhardt, P., Dawson-Hughes, B., Eisman, J. A., El-Hajj Fuleihan, G., Josse, R. G., Lips, P., et al. (2009) · Osteoporosis International · doi:10.1007/s00198-009-0954-6 · Cited by 1,472
Is vitamin D deficiency a major global public health problem?
Palacios, C., & Gonzalez, L. (2014) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/j.jsbmb.2013.11.003 · Cited by 1,252
A systematic review of vitamin D status in populations worldwide
Hilger, J., Friedel, A., Herr, R., Rausch, T., Roos, F., Wahl, D. A., Pierroz, D. D., Weber, P., & Hoffmann, K. (2014) · British Journal of Nutrition · doi:10.1017/s0007114513001840 · Cited by 832
Aghajafari, F., Nagulesapillai, T., Ronksley, P. E., Tough, S. C., O'Beirne, M., & Rabi, D. M. (2013) · BMJ · doi:10.1136/bmj.f1169 · Cited by 727
Global summary of maternal and newborn vitamin D status – a systematic review
Saraf, R., Morton, S. M. B., Camargo, C. A., & Grant, C. C. (2016) · Maternal & Child Nutrition · doi:10.1111/mcn.12210 · Cited by 365
Metadata
- Authors
- Bowyer, L., Catling‐Paull, C., Diamond, T., Homer, C., Davis, G., & Craig, M. E.
- Venue
- Clinical Endocrinology
- Publisher
- Wiley
- Published
- 2009-02-11
- Volume
- 70
- Issue
- 3
- Pages
- 372-377
- ISSN
- 0300-0664 (ISSN-L)
- 1365-2265
- OpenAlex
- W2039388975
- Cited by
- 260
- References
- 32
- FWCI
- 5.90
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Vitamin D, PTH and calcium levels in pregnant women and their neonates. https://app.cochat.ai/papers/10.1111/j.1365-2265.2008.03316.x
- The paper
- Bowyer, L., Catling‐Paull, C., Diamond, T., Homer, C., Davis, G., & Craig, M. E. (2009). Vitamin D, PTH and calcium levels in pregnant women and their neonates. Clinical Endocrinology. https://doi.org/10.1111/j.1365-2265.2008.03316.x
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
