Relationship between vitamin use, smoking, and nausea and XXXX of pregnancy.

@entity1 @entity391 @entity1209
BACKGROUND: @entity1209 in pregnancy (NVP) is a common complaint but risk factors for NVP are not well characterized. METHODS: Occurrence of NVP was studied by questionnaires given to pregnant @entity1 at their first visit to the antenatal care unit and were returned around gestational week 28. RESULTS: Analysis of 3675 completed questionnaires was made. @entity1209 in pregnancy was reported by 79% of the @entity1 , approximately half of which had been @entity391 . Various therapies (drugs, acupuncture, acupressure) were tried by 18% of the @entity1 with NVP, of which the majority used drugs, most notably antihistamines (specifically meclozine). Hospitalization occurred in 1% of all @entity1 . @entity1209 in pregnancy caused 28% of all sick-leaves during the first 28 weeks of pregnancy. Low maternal age and parity 1+ independently increased the risk for NVP. Smoking before pregnancy and using vitamins in early pregnancy were associated with a decreased risk for NVP. @entity1 working outside the home had a lower rate of NVP than housewives and @entity1 out of work. CONCLUSIONS: @entity1209 in pregnancy is a common complaint with a significant impact on leave of absence from work. The study identifies a number of factors that are related to the occurrence of NVP and that may give hints on the etiology of the condition.
