Limited research shows an inconclusive association between soda intake and asthma, potentially attributable to certain preservatives in sodas. This cross-sectional study examined the association between regular (nondiet)-soda intake and current asthma among a nationally representative sample of high school students. Analysis was based on the 2009 national Youth Risk Behavior Survey and included 15,960 students (grades 9 through 12) with data for both regular-soda intake and current asthma status. The outcome measure was current asthma (ie, told by doctor/nurse that they had asthma and still have asthma). The main exposure variable was regular-soda intake (ie, drank a can/bottle/glass of soda during the 7 days before the survey). Multivariable logistic regression was used to estimate the adjusted odds ratios for regular-soda intake with current asthma after controlling for age, sex, race/ethnicity, weight status, and current cigarette use. Overall, 10.8% of students had current asthma. In addition, 9.7% of students who did not drink regular soda had current asthma, and 14.7% of students who drank regular soda three or more times per day had current asthma. Compared with those who did not drink regular soda, odds of having current asthma were higher among students who drank regular soda two times per day (adjusted odds ratio = 1.28; 95% CI 1.02 to 1.62) and three or more times per day (adjusted odds ratio = 1.64; 95% CI 1.25 to 2.16). The association between high regular-soda intake and current asthma suggests efforts to reduce regular-soda intake among youth might have benefits beyond improving diet quality. However, this association needs additional research, such as a longitudinal examination.
KeywordsSoda; Adolescents; Asthma; Youth Risk Behavior Survey (YRBS) Address correspondence to: Sohyun Park, PhD, Division of Nutrition, Physical Activity, and Obesity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Mailstop K26, 4770 Buford Highway, NE, Atlanta, GA 30341. spark3@cdc.gov.
STATEMENT OF POTENTIAL CONFLICT OF INTERESTNo potential conflict of interest was reported by the authors. During the last 30 years, the prevalence of asthma has increased and is currently one of the most common chronic diseases among US children and adolescents. 6 Self-reported asthma prevalence during the preceding 12 months in 1980 was 3.5%, whereas current asthma prevalence in 2004 was 8.5% among US youth aged younger than 18 years. 7 The most current data indicate that in 2009, >10 million US youth aged 17 years and younger (14%) had ever been diagnosed with asthma, and 7.1 million children still had asthma (10%). 6 In addition, in 2007, there were 640,000 emergency department visits and 157,000 hospitalizations for asthma in US youth aged 17 years and younger. 8 In the United States, asthma-related medical expenses, including lost school and work days and early deaths, were estimated at about $56 billion in 2007. 9 Evidence suggests that, among children, males...