Cited by 83Smoking Behavior and CessationPrenatal Substance Exposure EffectsGlobal Maternal and Child Health

Maternal use of swedish snuff (snus) and risk of stillbirth

Wikström, Anna-Karin, Cnattingius, Sven, Stephansson, Olof·2010·Epidemiology

Abstract

BACKGROUND: Swedish snuff has been discussed internationally as a safer alternative to tobacco smoking. International cigarette manufacturers are promoting new snuff products, and the use of Swedish snuff is increasing, especially among women of childbearing age. The effect of Swedish snuff on pregnancy complications is unknown. METHODS: In this population-based cohort study, we estimated the risk of stillbirth in snuff users (n = 7629), light smokers (1-9 cigarettes/day; n = 41,488), and heavy smokers (≥10 cigarettes/day; n = 17,014), using nontobacco users (n = 504,531) as reference. RESULTS: Compared with nontobacco users, snuff users had an increased risk of stillbirth (adjusted odds ratio = 1.6 [95% confidence interval = 1.1-2.3]); the risk was higher for preterm (<37 weeks) stillbirth (2.1 [1.3-3.4]). For light smokers, the adjusted odds ratio of stillbirth was 1.4 (1.2-1.7) and the corresponding risk for heavy smokers was 2.4 (2.0-3.0). When we excluded women with preeclampsia or antenatal bleeding and infants who were small for gestational age, the smoking-related risks of stillbirth was markedly attenuated; the elevated risk for snuff users remained the same level. CONCLUSIONS: Use of Swedish snuff during pregnancy was associated with a higher risk of stillbirth. The mechanism behind this increased risk seems to differ from the underlying mechanism in smokers. Swedish snuff does not appear to be a safe alternative to cigarette smoking during pregnancy.

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Crossref · 10.1097/ede.0b013e3181f20d7e

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Authors
Wikström, A.-K., Cnattingius, S., & Stephansson, O.
Affiliations
  • Karolinska Institutet (SE)
  • Karolinska University Hospital (SE)
Corresponding author
Wikström, Anna-Karin
Venue
Epidemiology
Published
2010-11
Volume
21
Issue
6
Pages
772-778
ISSN
1044-3983 (ISSN-L)
OpenAlex
W2065451277
Cited by
83
References
30
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 1 · 2022: 5 · 2021: 5 · 2020: 6 · 2019: 4 · 2018: 6 · 2017: 3 · 2016: 3 · 2015: 8 · 2014: 10 · 2013: 9 · 2012: 10
FWCI
5.63
Type
journal article
Language
en
Open access
closed
Locations
  • Epidemiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Substance Exposure Effects
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Global Maternal and Child Health
Keywords
stillbirth, maternal smoking, snuff, smoking during pregnancy, pregnancy complications, preeclampsia, small for gestational age, alternative tobacco products
MeSH terms
Adult, Female, Humans, Pregnancy, Registries, Risk, Sweden, Tobacco, Smokeless, Cohort Studies, Odds Ratio, Maternal Exposure, Stillbirth

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