Snoring, pregnancy-induced hypertension, and growth retardation of the fetus

Chest. 2000 Jan;117(1):137-41. doi: 10.1378/chest.117.1.137.


Study objective: Our purpose was to study the relationship between snoring and pregnancy-induced hypertension and growth retardation of the fetus.

Design: Retrospective, cross-sectional, consecutive case series.

Setting: The Department of Gynecology and Obstetrics, University Hospital, Umeâ, Sweden.

Participants and measurements: On the day of delivery, 502 women with singleton pregnancies completed a questionnaire about snoring, witnessed sleep apneas, and daytime fatigue. Data concerning medical complications were taken from the women's casebooks.

Results: During the last week of pregnancy, 23% of the women reported snoring every night. Only 4% reported snoring before becoming pregnant. Hypertension developed in 14% of snoring women, compared with 6% of nonsnorers (p < 0.01). Preeclampsia occurred in 10% of snorers, compared with 4% of nonsnorers (p < 0.05). An Apgar score < or = 7 was more common in infants born to habitual snorers. Growth retardation of the fetus, defined as small for gestational age at birth, had occurred in 7.1% of the infants of snoring mothers and 2.6% of the remaining infants (p < 0.05). Habitual snoring was independently predictive of hypertension (odds ratio [OR], 2.03; p < 0.05) and growth retardation (OR, 3.45; p < 0.01) in a logistic regression analysis controlling for weight, age, and smoking.

Conclusions: Snoring is common in pregnancy and is a sign of pregnancy-induced hypertension. Snoring indicates a risk of growth retardation of the fetus.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Body Weight
  • Female
  • Fetal Growth Retardation / complications*
  • Humans
  • Hypertension / complications*
  • Infant, Newborn
  • Infant, Small for Gestational Age
  • Odds Ratio
  • Pre-Eclampsia / complications*
  • Pregnancy
  • Pregnancy Outcome
  • Pregnancy Trimester, Third
  • Snoring / etiology*
  • Surveys and Questionnaires