Trends and disparities in American Indian/Alaska Native unintentional injury mortality from 1999 to 2016.

INTRODUCTION: Alcohol and drug use are significant problems in the US, and American Indian/Alaska Native (AI/AN) communities and individuals are known to be among the most affected. This study evaluates disparities in unintentional injury mortality causes since 1999. METHODS: Analyses in 2020 of unintentional injury mortality rate disparities between AI/ANs and white population over the 1999-2016 period with attention to motor vehicle crashes, alcohol poisoning, drug poisoning and all other cause types. Rates in each of the 10 states with the largest AI/AN populations were also investigated to account for geographical concentration. RESULTS: Motor vehicle mortality rates declined for both AI/AN and white groups, but a large racial disparity was maintained. Conversely, poisoning mortality rates rose substantially in both groups, with a jump in rates in 2007 due to a coding change, resulting in a large disparity that was maintained through 2016. Comparison of alcohol and drug poisonings showed that the AI/AN alcohol poisoning rate was about eight times the white rate, whereas drug poisoning rates were similar. For 'all other' unintentional injuries, the highest rates were seen for AI/AN men, with rates generally rising over the study period. State-specific analyses found substantial variation in AI/AN rates, with few or no disparities in New York and Texas. CONCLUSIONS: Results indicate substantial and persisting disparities in unintentional injury mortality, with especially large differences in alcohol poisoning. The absence of disparities in New York and Texas suggest the importance of situational factors.

Price Changes in Washington Following the 2012 Liquor Privatization: An Update Through 2016 With Comparisons to California, Idaho, and Oregon.

BACKGROUND: Washington State ended their wholesale and retail monopoly on liquor on June 1, 2012, resulting in a 5-fold increase in liquor outlets in diverse store types. The legislation also included taxes at the wholesale and retail levels. This study seeks to investigate whether prices have changed from 2014 through 2016, as a follow-up to a previous study finding increases in prices from 2012 to 2014, compared to prices in other states. METHODS: We developed an index of 68 brands that were popular in Washington in early 2012. Data on final liquor prices (including taxes) in Washington and California were obtained through store visits and online sources between November 2013 and March 2014, and again between April and May 2016 for Washington only. Pricing data for Idaho and Oregon were obtained from the Statistics for Alcohol Management Database over both sampling periods. Primary analyses were conducted on the utmost brands available in the majority of the stores sampled. RESULTS: Liquor prices in Washington rose an average of 3.9% for 750 ml and 6.5% for 1.75-l containers overall from 2014 to 2016, while bordering states Idaho (+2.9%) and Oregon (+1.5%) experienced smaller increases for 750-ml and declines for 1.75-l containers (Idaho: -2.9%, Oregon: -4.9%). In the analyses of spirits prices in Washington compared to California, prices in California were 24.1% lower for 750-ml containers and 29.6% lower for 1.75-l containers. CONCLUSIONS: Our findings indicate liquor prices in Washington have increased since our 2014 assessment at a larger percentage than prices in the neighboring control states Oregon and Idaho, with varying effects on brands, container sizes, and store types. We demonstrate privatization is associated with a different pattern of prices across store types than seen in California.

Changes in Marijuana Use Across the 2012 Washington State Recreational Legalization: Is Retrospective Assessment of Use Before Legalization More Accurate?

OBJECTIVE: The purpose of this study was to evaluate changes in marijuana use prevalence and user characteristics across the 2012 recreational legalization in Washington State. Differences in change estimates between retrospective and contemporaneous pre-legalization measures are compared and considered in relation to potential social acceptability and illegality effects on reporting. METHOD: Four representative surveys of the Washington State population 18 years and older were conducted by telephone, two in 2014 and two in 2015, which are combined by year for analyses (N = 3,451). Respondents reported their current past-year use frequency and retrospective frequency of use in 2012 before the election in which legalization was passed. They also provided demographic information and details of alcohol use, including simultaneous use with marijuana. RESULTS: A small and not statistically significant increase of 1.2 percentage points in past-year use prevalence, from 24.3% (22.3-26.5) to 25.6% (23.6-27.6), was found when combining the surveys. No statistically significant change was found in the prevalence of simultaneous use with alcohol, which decreased from 12.9% (11.3-14.7) to 12.6% (11.0-14.4). In contrast, estimates from the National Survey on Drug Use and Health (NSDUH) indicate substantially increased prevalence, from 15.5% (13.8-17.3) in 2010-2012 to 19.1% (16.9-21.4) in 2013-2014, although this change is not statistically significant. Other findings of interest from the Washington State surveys include new users after legalization tending to be older, White, and moderate drinkers who do not use marijuana simultaneously with alcohol. CONCLUSIONS: A retrospective pre-legalization measure showed only a small increase in marijuana use prevalence in contrast to larger changes found in prospectively assessed use in the NSDUH. Changes in the social acceptability and legal status of marijuana after legalization may have increased reporting of pre-legalization use compared with concurrent assessments.

Changing Racial/Ethnic Disparities in Heavy Drinking Trajectories Through Young Adulthood: A Comparative Cohort Study.

BACKGROUND: There is evidence of racial/ethnic differences in the age at which young adults age out of heavy drinking. Some studies have found Black and Hispanic drinkers engage in more frequent heavy drinking than White people beyond adulthood. Yet, the alcohol-related disparities literature has produced contradictory findings on whether an age-crossover effect is evident among racial/ethnic groups; that is, whether racial/ethnic minorities' drinking levels or trajectories are lower than White people at young ages but later exceed (or crossover) those of White people. This study extends this scant literature by assessing whether racial/ethnic differences in heavy drinking have changed over time (possibly accounting for mixed findings from prior research); and tests for an age-crossover effect in heavy drinking using longitudinal data from 2 cohorts born 20 years apart. METHODS: Data are from the 1979 (n = 10,963) and 1997 (n = 8,852) cohorts of the National Longitudinal Survey of Youth (NLSY). Generalized estimating equations were used to model trajectories of heavy drinking frequency from ages 17 to 31. Racial/ethnic differences were determined using sex-stratified models and 3-way interactions of race/ethnicity with age, age-squared, and cohort. RESULTS: Racial/ethnic differences in heavy drinking trajectories have changed over time in men and women. In the older NLSY cohort, Hispanic men and Black women surpassed White men's and women's heavy drinking frequency by age 31. This crossover was absent in the younger cohort, where trajectories of all racial-sex groups converged by age 31. Normative trajectories have changed in Hispanics and White people of both sexes, with a delay in age of peak frequency, and greater levels of heavy drinking in the younger cohort of women. CONCLUSIONS: Changes in heavy drinking trajectories over time suggest the need for targeted interventions during young adulthood. While disparities in young adult heavy drinking were no longer apparent in the more recent birth cohort, continued monitoring is important.

Health Risk Factors Associated with Lifetime Abstinence from Alcohol in the 1979 National Longitudinal Survey of Youth Cohort.

BACKGROUND: The choice and definition of a comparison group in alcohol-related health studies remains a prominent issue in alcohol epidemiology due to potential biases in the risk estimates. The most commonly used comparison group has been current abstainers; however, this includes former drinkers who may have quit drinking due to health problems. Lifetime abstention could be the best option, but measurement issues, selection biases due to health and other risk factors, and small numbers in populations are important concerns. This study examines characteristics of lifetime abstention and occasional drinking that are relevant for alcohol-related health studies. METHODS: This study used data from the National Longitudinal Survey of Youth 1979 cohort of 14 to 21 year olds followed through 2012 (n = 7,515). Definitions of abstinence and occasional drinking were constructed based on multiple measurements. Descriptive analyses were used to compare the definitions, and in further analysis, lifetime abstainers (n = 718) and lifetime minimal drinkers (n = 1,027) were compared with drinkers across demographics and early-life characteristics (i.e., religion, poverty, parental education, and family alcohol problems) in logistic regression models. RESULTS: Using a strict measurement of zero drinks from adolescence to the 50s, only 1.7% of the sample was defined as lifetime abstainer compared to a broader definition allowing a total of 1 drink over the lifetime that included 9.5% and to lifetime minimal drinking (a total of 3 drinks or less a month), which accounted for 13.7%. Factors significantly associated with lifetime abstention and lifetime minimal drinking included religion, poverty, having no family alcohol problems, Hispanic ethnicity, foreign-born, and female gender. Importantly, work-related health limitations in early life were significantly associated, but not childhood physical and mental health problems. CONCLUSIONS: Alcohol-related health studies should utilize lifetime classifications of drinkers and abstainers, and, in doing so, should account for early-life socioeconomic adversity and childhood health factors or consider these as unmeasured confounders.

Early Life Health, Trauma and Social Determinants of Lifetime Abstention from Alcohol.

AIMS: Factors influencing lifetime abstention from alcohol may be relevant to the validity of analyses of alcohol's impact on health outcomes. We evaluate relationships between early life experiences, social factors, and demographic characteristics on lifetime abstainer status in models disaggregating by gender and, among women, race/ethnicity. METHODS: Analyses use the landline sample (N = 5382) of the 2010 U.S. National Alcohol Survey. Surveyed participants who reported never drinking alcohol were defined as lifetime abstainers. Additional variables assessed included demographics, dispositions to risk taking and impulsivity, and indicators of early life stress like economic difficulty, childhood trauma and early onset of health conditions. Logistic regression models predicting lifetime abstention were estimated. RESULTS: Lifetime abstainers are more likely to be women and, among women, to be non-White and Latina. Those reporting that their religion discouraged drinking and that religion was very important to them were more likely to be lifetime abstainers. Higher education levels were associated with reduced rates of lifetime abstention among women. Also among women, family problem drinking was associated with lower rates of lifetime abstention. However, childhood economic difficulty significantly predicted lower abstention only for White women, and childhood sexual abuse was significantly related to lower lifetime abstention only for Black women. CONCLUSIONS: Understanding the characteristics and determinants of individuals who never drink alcohol is relevant to any analysis of alcohol-related health outcomes. Results point to specific factors related to lifetime abstention with potential to bias such analyses if not included as control measures. SHORT SUMMARY: Analyses evaluating relationships between early life experiences, social factors, and demographics with lifetime abstainer status identified characteristics associated with both poor health and with better health. These included lower risk taking and impulsivity scores and lower rates of family problem drinking, childhood economic difficulties and childhood sexual abuse.

Analysis of Price Changes in Washington Following the 2012 Liquor Privatization.

AIMS: In June, 2012 the state of Washington ended a wholesale and retail monopoly on liquor sales resulting in about five times as many stores selling liquor. Three-tier restrictions were also removed on liquor, while beer and wine availability did not increase. Substantial taxes at both the wholesale and retail levels were implemented and it was expected that prices would rise. METHODS: To evaluate price changes after privatization we developed an index of about 68 brands that were popular in Washington during early 2012. Data on final liquor prices (including all taxes) in Washington were obtained through store visits and on-line sources between November 2013 and March of 2014. Primary analyses were conducted on five or six brand indexes to allow the inclusion of most stores. RESULTS: Washington liquor prices rose by an average of 15.5% for the 750 ml size and by 4.7% for the 1.75 l size, while only small changes were seen in the bordering states of Oregon and Idaho. Prices were found to vary greatly by store type. Liquor Superstores had generally the lowest prices while drugstore, grocery and especially smaller Liquor Store prices were found to be substantially higher. CONCLUSION: Our findings indicate that liquor prices in Washington increased substantially after privatization and as compared to price changes in bordering states, with a much larger increase seen for the 750 ml size and with wide variation across store types. However, persistent drinkers looking for low prices will be able to find them in certain stores.