Office prenatal formula advertising and its effect on breast-feeding patterns

Cynthia Howard, Fred Howard, Ruth Lawrence, Elena Andresen, Elisabeth DeBlieck, Michael Weitzman

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Objective: To compare the effect of formula company-produced materials about infant feeding to breast-feeding promotion materials without formula advertising on breast-feeding initiation and duration. Methods: Five hundred forty-seven pregnant women were randomized to receive either formula company (commercial; n = 277) or specially designed (research; n = 270) educational packs about infant feeding at their first prenatal visit. Feeding method was determined at delivery. Breast-feeding duration of the 294 women who chose to breast-feed was ascertained at 2, 6, 12, and 24 weeks. Survival analyses were used to evaluate continuous outcomes, and χ2 and logistic regression analyses were used to evaluate discrete outcomes. Results: Breast-feeding initiation (relative risk [RR] 0.93, 95% confidence interval [CI] 0.61, 1.43) and duration after 2 weeks (hazard ratio 1.19, 95% CI 0.86, 1.64) were not affected. Women in the commercial group were more likely to cease breast-feeding before hospital discharge (RR 5.80, 95% CI 1.25, 54.01) and before 2 weeks (adjusted odds ratio [OR] 1.91, 95% CI 1.02, 3.55). In subgroup analyses, women with uncertain goals for breast-feeding or goals of 12 weeks or less experienced shortened exclusive (hazard ratio 1.53, 95% CI 1.06, 2.21), full (hazard ratio 1.70, 95% CI 1.18, 2.48), and overall (hazard ratio 1.75, 95% CI 1.16, 2.64) breast-feeding duration when exposed to the commercial intervention. Conclusion: Although breast-feeding initiation and long-term duration were not affected, exposure to formula promotion materials increased significantly breast-feeding cessation in the first 2 weeks. Additionally, among women with uncertain goals or breast-feeding goals of 12 weeks or less, exclusive, full, and overall breast-feeding duration were shortened. Educational materials about infant feeding should support unequivocally breast-feeding as optimal nutrition for infants; formula promotion products should be eliminated from prenatal settings. Copyright (C) 2000 The American College of Obstetricians and Gynecologists.

Original languageEnglish (US)
Pages (from-to)296-303
Number of pages8
JournalObstetrics and Gynecology
Volume95
Issue number2
DOIs
StatePublished - Feb 2000
Externally publishedYes

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Feeding Behavior
Breast Feeding
Confidence Intervals
Feeding Methods
Survival Analysis
Pregnant Women
Breast
Logistic Models
Odds Ratio
Regression Analysis

ASJC Scopus subject areas

  • Obstetrics and Gynecology

Cite this

Office prenatal formula advertising and its effect on breast-feeding patterns. / Howard, Cynthia; Howard, Fred; Lawrence, Ruth; Andresen, Elena; DeBlieck, Elisabeth; Weitzman, Michael.

In: Obstetrics and Gynecology, Vol. 95, No. 2, 02.2000, p. 296-303.

Research output: Contribution to journalArticle

Howard, Cynthia ; Howard, Fred ; Lawrence, Ruth ; Andresen, Elena ; DeBlieck, Elisabeth ; Weitzman, Michael. / Office prenatal formula advertising and its effect on breast-feeding patterns. In: Obstetrics and Gynecology. 2000 ; Vol. 95, No. 2. pp. 296-303.
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abstract = "Objective: To compare the effect of formula company-produced materials about infant feeding to breast-feeding promotion materials without formula advertising on breast-feeding initiation and duration. Methods: Five hundred forty-seven pregnant women were randomized to receive either formula company (commercial; n = 277) or specially designed (research; n = 270) educational packs about infant feeding at their first prenatal visit. Feeding method was determined at delivery. Breast-feeding duration of the 294 women who chose to breast-feed was ascertained at 2, 6, 12, and 24 weeks. Survival analyses were used to evaluate continuous outcomes, and χ2 and logistic regression analyses were used to evaluate discrete outcomes. Results: Breast-feeding initiation (relative risk [RR] 0.93, 95{\%} confidence interval [CI] 0.61, 1.43) and duration after 2 weeks (hazard ratio 1.19, 95{\%} CI 0.86, 1.64) were not affected. Women in the commercial group were more likely to cease breast-feeding before hospital discharge (RR 5.80, 95{\%} CI 1.25, 54.01) and before 2 weeks (adjusted odds ratio [OR] 1.91, 95{\%} CI 1.02, 3.55). In subgroup analyses, women with uncertain goals for breast-feeding or goals of 12 weeks or less experienced shortened exclusive (hazard ratio 1.53, 95{\%} CI 1.06, 2.21), full (hazard ratio 1.70, 95{\%} CI 1.18, 2.48), and overall (hazard ratio 1.75, 95{\%} CI 1.16, 2.64) breast-feeding duration when exposed to the commercial intervention. Conclusion: Although breast-feeding initiation and long-term duration were not affected, exposure to formula promotion materials increased significantly breast-feeding cessation in the first 2 weeks. Additionally, among women with uncertain goals or breast-feeding goals of 12 weeks or less, exclusive, full, and overall breast-feeding duration were shortened. Educational materials about infant feeding should support unequivocally breast-feeding as optimal nutrition for infants; formula promotion products should be eliminated from prenatal settings. Copyright (C) 2000 The American College of Obstetricians and Gynecologists.",
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