ArticleBMC pregnancy and childbirth2019
Trends in maternal use of snus and smoking tobacco in pregnancy. A register study in southern Norway.
Article in BMC pregnancy and childbirth, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.
- The invisible enemy: A systematic review and meta-analysis of maternal smokeless tobacco use as a risk factor for low birth weight.PloS one · 2024Pooled it
- Infant Mortality in Norway: A Population-Based Study From 2009 Through 2020.Acta paediatrica (Oslo, Norway : 1992) · 2026Article
- Daily snuff use during pregnancy, gestational length and birth weight; register-based study.BMC pregnancy and childbirth · 2024Article
- Intersectional socioeconomic disparities in continuous smoking through pregnancy among pre-pregnant smokers in Sweden between 2006 and 2016.BMC pregnancy and childbirth · 2024Article
- Maternal use of snus as smokeless tobacco in pregnancy and infant lung function.ERJ open research · 2024Article
- Smoked, smokeless, and poly-tobacco use during pregnancy in relation to infant mortality in Cambodia: Findings from a nationwide sample.Tobacco induced diseases · 2024Article
- Maternal factors associated with smoking during gestation and consequences in newborns: Results of an 18-year study.Journal of clinical and translational research · 2022Article
- Toxic effects of smokeless tobacco on female reproductive health: A review.Current research in toxicology · 2022Review
- Impact of nicotine and maternal BMI on fetal birth weight.BMC pregnancy and childbirth · 2021Article
- Snus and Alcohol: Mutually Rewarding Effects in the Brain? A Matched Controlled Population Study.Substance abuse : research and treatment · 2021Article
- Evaluation of incomplete maternal smoking data using machine learning algorithms: a study from the Medical Birth Registry of Norway.BMC pregnancy and childbirth · 2020Article
- Parental education and the risk of cerebral palsy for children: an evaluation of causality.Developmental medicine and child neurology · 2020Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe use of tobacco products including Swedish snus (moist snuff) in pregnancy may cause adverse health outcomes. While smoking prevalence has decreased among fertile women in Norway, snus use has increased during the last years. We investigated whether these trends were reflected also during pregnancy in a population of women in Southern Norway.
methodsData on smoking tobacco and snus use at three time points before and during pregnancy for 20,844 women were retrieved from the electronic birth record for the years 2012-2017. The results for the three-year period 2015-2017 were compared with a previously studied period 2012-2014. Prevalence and quit rates of tobacco use within groups of age, parity and education were reported. Within the same groups adjusted quit rates were analyzed using logistic regression. Mean birthweight and Apgar score of offspring were calculated for tobacco-users and non-users.
resultsThere was an increase of snus use before pregnancy from the period 2012-2014 to the period 2015-2017 from 5.1% (CI; 4.6 to 5.5) to 8.4% (CI; 7.8 to 8.9). Despite this, the use of snus during pregnancy did not increase from the first to the second period, but stabilized at 2.8% (CI; 2.5 to 3.2) in first trimester and 2.0% (CI; 1.7 to 2.2) in third trimester. Cigarette smoking decreased significantly both before and during pregnancy. Snus use and smoking during pregnancy were associated with a reduction in average birthweight, but no significant effects on Apgar scores. Odds ratios for quitting both snus and smoking tobacco during pregnancy were higher for women aged 25-34 years, for the primiparas and for those with a high level of education. Pregnant women were more likely to have quit tobacco use in the last time period compared to the first.
conclusionsWhile smoking during pregnancy was decreasing, the use of snus remained constant, levelling off to around 3% in first trimester and 2% in third trimester. Approximately 25% of those that used snus, and 40% that smoked before pregnancy, continued use to the third trimester. This calls for a continuous watch on the use of snus and other nicotine products during pregnancy.
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