Browsing by keyword "Surveillance and monitoring"

Now showing items 1-2 of 2

    • Associations of lifetime active and passive smoking with spontaneous abortion, stillbirth and tubal ectopic pregnancy: a cross-sectional analysis of historical data from the Women's Health Initiative
      Hyland, Andrew; Piazza, Kenneth M.; Hovey, Kathleen M.; Ockene, Judith K.; Andrews, Christopher A.; Rivard, Cheryl; Wactawski-Wende, Jean (2015-07-01)
      OBJECTIVE: To examine the associations between tobacco exposure and adverse pregnancy outcomes using quantitative measures of lifetime active smoking and secondhand smoke (SHS) exposure. METHODS: Historical reproductive data on 80 762 women who participated in the Women's Health Initiative Observational Study were examined with a cross-sectional analysis. We assessed self-reported lifetime active and passive tobacco smoke exposure, self-reported spontaneous abortions, stillbirths and ectopic pregnancies. RESULTS: When compared with never-smoking women, participants who were ever active smokers during their reproductive years had ORs (OR) of 1.16 (95% CI 1.08 to 1.26) for 1 or more spontaneous abortions, 1.44 (95% CI 1.20 to 1.73) for 1 or more stillbirths, and 1.43 (95% CI 1.10 to 1.86) for 1 or more ectopic pregnancies. Never-smoking women participants with the highest levels of lifetime SHS exposure, including childhood > 10 years, adult home > 20 years and adult work exposure > 10 years, when compared with never-smoking women with no SHS exposure had adjusted ORs of 1.17 (95% CI 1.05 to 1.30) for spontaneous abortion, 1.55 (95% CI 1.21 to 1.97) for stillbirth, and 1.61 (95% CI 1.16 to 2.24) for ectopic pregnancy. CONCLUSIONS: Women who were ever-smokers during their reproductive years had significantly greater estimates of risk for spontaneous abortion, stillbirth and tubal ectopic pregnancy. Never-smoking women with the highest levels of lifetime exposure to SHS had significantly increased estimates of risk for spontaneous abortion, stillbirth and tubal ectopic pregnancy.

    • Smokeless tobacco products sold in Massachusetts from 2003 to 2012: trends and variations in brand availability, nicotine contents and design features
      Cullen, Doris; Keithly, Lois; Kane, Kevin J.; Land, Thomas; Paskowsky, Mark; Chen, Lili; Hayes, Rashelle B.; Li, Wenjun (2014-01-13)
      BACKGROUND: Sales of smokeless tobacco products have increased in the USA. More than one in eight males in the 12th grade are current users of smokeless tobacco. Surveillance data examining nicotine levels of smokeless tobacco subsequent to 2006 have not been reported in the literature. METHODS: Data on nicotine levels and design features (eg, pH, moisture content, leaf cut and flavour) of smokeless tobacco products sold in Massachusetts were obtained from manufacturers between 2003 and 2012. Design features, levels and temporal trends in unionised (free) nicotine and nicotine content of smokeless tobacco products were analysed overall and by manufacturer and product type. RESULTS: The annual total number of moist snuff products increased from 99 in 2003 to 127 in 2012. The annual total number of reported snus products increased from 4 in 2003 to the highest level of 62 in 2011, before decreasing to 26 in 2012. Overall, mean unionised (free) nicotine remained relatively stable (beta=0.018 (95% CI -0.014 to 0.050) mg/g dry weight/year) from 2003 to 2012. However, both levels and temporal trends of mean free nicotine varied significantly among manufacturers (p CONCLUSIONS: The number of smokeless tobacco products increased in the Massachusetts market. Further, mean unionised (free) nicotine levels in smokeless tobacco products of several manufacturers continued to rise despite decreasing levels from other manufacturers. The current success in tobacco control is very likely undermined without government surveillance, regulation and widespread public disclosure of nicotine levels in these products.