NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Tobacco Control Campaign in Uruguay: Impact on Smoking Cessation during Pregnancy

Jeffrey E. Harris, Ana Inés Balsa, Patricia Triunfo

NBER Working Paper No. 19878
Issued in January 2014
NBER Program(s):   DEV   HC   HE   PE

Background. In 2005, Uruguay instituted a nationwide tobacco control campaign that has resulted in a substantial decline in nationwide smoking rates. We sought to determine the quantitative contributions of each of the major tobacco control measures adopted by the Uruguayan government. We focused sharply on smoking cessation by pregnant women and on the effect of quitting smoking during pregnancy on birth weight.

Data. We analyzed a nationwide registry of all pregnancies in Uruguay during 2007–2012, supplemented by data on cigarette prices and various governmental policies.

Methods. We estimated linear probability models of quitting smoking in the third trimester as well as linear models of the effect of quitting on birth weight. Our explanatory variables included maternal characteristics, provider-level and national-level policy interventions, and real price. In our models of quitting smoking, we used taxes as an instrument to address price endogeneity. In our models of birth weight, we used tobacco control policies as instruments to address the endogeneity of smoking cessation.

Results. During 2007–2012, the proportion of pregnant women who had quit smoking by their third trimester increased markedly from 15 to 42 percent. Each of the major non-price tobacco control measures – including programs to treat nicotine dependence at health centers, banning of advertising nationwide, rotating warnings with pictograms on each pack, restriction of brands to a single presentation, and an increase in the size of pictograms to 80% of the front and back of each pack – was separately associated with a significant increase in the rate of quitting. During 2007–2009, tobacco manufacturers responded to tax increases and non-price policies by moderating their pretax prices. Quitting smoking by the third trimester increased birth weight by an estimated 163 grams.

Conclusion. Uruguay’s nationwide tobacco control campaign led to a substantial increase in the likelihood that a pregnant smoker would quit by her third trimester. Each of the major tobacco control measures adopted by the government had a measurable impact on the rate of quitting and thus on neonatal health.

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Document Object Identifier (DOI): 10.3386/w19878

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