Associations of ambient temperature and total cloud cover during pregnancy with newborn vitamin D status.
Public Health
; 231: 179-186, 2024 Jun.
Article
em En
| MEDLINE
| ID: mdl-38703492
ABSTRACT
OBJECTIVES:
We aimed to estimate the effects of temperature and total cloud cover before birth on newborn vitamin D status. STUDYDESIGN:
Prospective birth cohort.METHODS:
This study included 2055 mother-newborn pairs in Wuhan, Hubei province, China. The data of temperature and total cloud cover from 30 days before birth were collected, and cord blood 25-hydroxyvitamin D [25(OH)D] were determined. Restricted cubic spline regression models, multiple linear regression models, and logistic regression models were applied to estimate the associations.RESULTS:
A "J" shaped curve was observed between temperature and vitamin D status, and an inverse "J" shaped curve was observed between total cloud cover and vitamin D status. Compared to the fourth quartile (75-100th percentile, Q4) of average temperature (30 days before birth), the odds ratio (OR) for Q1 (0-25th percentile) associated with the vitamin D deficiency occurrence (<20 ng/mL) was 3.63 (95% CI, 1.54, 8.65). Compared to Q1 of the average total cloud cover (30 days before birth), the OR associated with the occurrence of vitamin D deficiency was 2.38 (95% CI, 1.63, 3.50) for the Q4.CONCLUSIONS:
Low temperature and high cloud cover before delivery were significantly associated with an increased probability of vitamin D deficiency in newborns. The findings suggested that pregnancy women lacking sufficient sunlight exposure still need vitamin D supplement to overcome the potential vitamin D deficiency status.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Temperatura
/
Vitamina D
/
Deficiência de Vitamina D
Limite:
Adult
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Female
/
Humans
/
Male
/
Newborn
/
Pregnancy
País/Região como assunto:
Asia
Idioma:
En
Revista:
Public Health
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China