The association of shift work and nitrous oxide exposure in pregnancy with birth weight and gestational age.
Epidemiology
; 10(4): 429-36, 1999 Jul.
Article
en En
| MEDLINE
| ID: mdl-10401879
We examined the relation between shift work and occupational nitrous oxide exposure in the second trimester of pregnancy and birth weight and gestational age at delivery among the members of the Swedish Midwives Association. Eighty-four per cent of members who were registered in 1989 responded to a postal questionnaire concerning occupational exposures, including work schedule and the use of nitrous oxide, in relation to each of their pregnancies. We obtained information on births from the Swedish Medical Birth Register. We used models with allowance for dependence between births for the same woman and found that night work was associated with preterm birth (<37 weeks) [odds ratio (OR) = 5.6; 95% confidence limits (CL) = 1.9, 16.4] and to a lesser extent with low birth weight [OR = 1.9 (95% CL = 0.6, 5.8)]. Three-shift work schedule (day, evening, and night rotation) showed a possible association with preterm birth [OR = 2.3 (95% CL = 0.7, 7.3)]. Exposure to nitrous oxide use was associated with reduced birth weight (-77 gm; 95% CL = -129, -24) and an increase in the odds of infants being small for gestational age (< or = 10th percentile of weight for gestational week) (OR = 1.8; 95% CL = 1.1, 2.8).
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Admisión y Programación de Personal
/
Peso al Nacer
/
Exposición Profesional
/
Edad Gestacional
/
Exposición Materna
/
Partería
/
Óxido Nitroso
Tipo de estudio:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Female
/
Humans
/
Pregnancy
País/Región como asunto:
Europa
Idioma:
En
Revista:
Epidemiology
Asunto de la revista:
EPIDEMIOLOGIA
Año:
1999
Tipo del documento:
Article
País de afiliación:
Suecia
Pais de publicación:
Estados Unidos