Secondhand smoke exposure, smoking hygiene, and hospitalization in the first 18 months of life

  • G.M. L
  • L.-M. H
  • Leung G
 et al. 
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Background: Recognizing the suboptimal public health effects of a complete cessation strategy for parents and child caregivers who smoke, some researchers have called for a harm reduction approach; however, the evidence remains scanty and controversial. Objective: To examine the effects of secondhand smoke and smoking hygiene on infant health and related health care costs during the first 18 months of life. Methods: We conducted prospective follow-up on 8327 newborns during April and May of 1997 for 18 months in a population-based birth cohort of infants from Hong Kong, China. Main Outcome Measures: Number of hospital admissions, adjusted odds ratios for ever hospitalization for each secondhand smoke exposure variable, and corresponding population attributable risks. Results: Most secondhand smoke exposure came from fathers and other household contacts, whereas only 2.8% of mothers smoked postpartum. The odds ratio of ever hospitalization due to all illnesses combined for infants living in a household with any (maternal, paternal, or other) smoker who was smoking at least 3 m away from the infant, as reported by a parent, was 1.00 (95% confidence interval, 0.88-1.13) compared with those in a smoke-free household. The corresponding odds ratio for infants living with any smoker at home with poor smoking hygiene (

Author-supplied keywords

  • *child hospitalization
  • *cigarette smoke
  • *environmental exposure
  • *smoking
  • Adult
  • Attitude to Health
  • Confidence Intervals
  • Counseling/statistics & numerical data
  • Family
  • Female
  • Follow-Up Studies
  • Hong Kong/epidemiology
  • Hospitalization/*statistics & numerical data
  • Humans
  • Hygiene*/education
  • Hygiene*/standards
  • Infant
  • Infant Welfare/*statistics & numerical data
  • Male
  • Mothers/*statistics & numerical data
  • Mothers/education
  • Newborn
  • Odds Ratio
  • Pregnancy
  • Prenatal Exposure Delayed Effects
  • Prospective Studies
  • Risk Factors
  • Smoking/*adverse effects
  • Smoking/epidemiology
  • Tobacco Smoke Pollution/*adverse effects
  • Tobacco Smoke Pollution/statistics & numerical dat
  • article
  • caregiver
  • child health
  • follow up
  • harm reduction
  • health care cost
  • hospital admission
  • household
  • human
  • hygiene
  • infant
  • major clinical study
  • newborn
  • parent
  • priority journal
  • public health
  • smoking cessation

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  • Leung G.M.

  • Ho L.-M.

  • Gabriel M Leung

  • Lai-Ming Ho

  • Tai-Hing Lam

  • Leung G.M.

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