Dataset Information

Epidemiological evidence on extra-medical use of prescription pain relievers: transitions from newly incident use to dependence among 12-21 year olds in the United States using meta-analysis, 2002-13.

ABSTRACT: Background. When 12-to-21-year-olds start using prescription pain relievers extra-medically, some of them transition into opioid dependence within 12 months after such use. Our main aim for this epidemiological research on 12-to-21-year-olds in the United States (US) is to estimate the risk of becoming a newly incident case of opioid dependence within 12 months after onset of using prescription pain relievers extra-medically (EMPPR). Methods. Meta-analyses from multiple independent replication samples now are possible, based upon nationally representative survey samples of US adolescents age 12-21 years. All 12-to-21-year-olds were sampled and recruited for the US National Surveys on Drug Use and Health, with standardized assessments of EMPPR use and opioid dependence (NSDUH, 2002-2013). Results. Peak risk for a transition from start of EMPPR use to opioid dependence within 12 months is seen at mid-adolescence among 14-to-15-year-olds (6.3%, 8.7% per year), somewhat earlier than peak risk for starting EMPPR use (seen for 16-to-19-year-olds at 4.1%, 5.9% per year). Applied to 12-to-21-year-olds in the US between 2002-2013, an estimated 8 million started using PPR extra-medically. Each year, roughly 42,000 to 58,000 transitioned into opioid dependence within 12 months after onset of such use. Discussion. These epidemiological estimates for the US in recent years teach us to expect one transition into adolescent-onset opioid dependence within 12 months for every 11-16 newly incident EMPPR users, yielding perhaps 120 newly incident opioid dependent cases in need of practitioner attention or treatment services, each day of each year. This evidence can be used to motivate more effective public health prevention, outreach, and early intervention programs as might prevent or delay occurrence of EMPPR use and opioid dependence.

SUBMITTER: Parker MA

PROVIDER: S-EPMC4662579 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Epidemiological evidence on extra-medical use of prescription pain relievers: transitions from newly incident use to dependence among 12-21 year olds in the United States using meta-analysis, 2002-13.

Parker Maria A MA Anthony James C JC

PeerJ 20151020

Background. When 12-to-21-year-olds start using prescription pain relievers extra-medically, some of them transition into opioid dependence within 12 months after such use. Our main aim for this epidemiological research on 12-to-21-year-olds in the United States (US) is to estimate the risk of becoming a newly incident case of opioid dependence within 12 months after onset of using prescription pain relievers extra-medically (EMPPR). Methods. Meta-analyses from multiple independent replication s ...[more]

PMID: 26623183

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Project description:BackgroundCannabis use and cannabis regulatory policies recently re-surfaced as noteworthy global research and social media topics, including claims that Mexicans have been sending cannabis and other drug supplies through a porous border into the United States. These circumstances prompted us to conduct an epidemiological test of whether the states bordering Mexico had exceptionally large cannabis incidence rates for 2002-2011. The resulting range of cannabis incidence rates disclosed here can serve as 2002-2011 benchmark values against which estimates from later years can be compared.MethodsThe population under study is 12-to-24-year-old non-institutionalized civilian community residents of the US, sampled and assessed with confidential audio computer-assisted self-interviews (ACASI) during National Surveys on Drug Use and Health, 2002-2011 (aggregate n ∼ 420,000) for which public use datasets were available. We estimated state-specific cannabis incidence rates based on independent replication sample surveys across these years, and derived meta-analysis estimates for 10 pre-specified regions, including the Mexico border region.ResultsFrom meta-analysis, the estimated annual incidence rate for cannabis use in the Mexico Border Region is 5% (95% CI [4%-7%]), which is not an exceptional value relative to the overall US estimate of 6% (95% CI [5%-6%]). Geographically quite distant from Mexico and from states of the western US with liberalized cannabis policies, the North Atlantic Region population has the numerically largest incidence estimate at 7% (95% CI [6%-8%]), while the Gulf of Mexico Border Region population has the lowest incidence rate at 5% (95% CI [4%-6%]). Within the set of state-specific estimates, Vermont's and Utah's populations have the largest and smallest incidence rates, respectively (VT: 9%; 95% CI [8%-10%]; UT: 3%; 95% CI [3%-4%]).DiscussionBased on this study's estimates, among 12-to-24-year-old US community residents, an estimated 6% start to use cannabis each year (roughly one in 16). Relatively minor variation in region-wise and state-level estimates is seen, although Vermont and Utah might be exceptional. As of 2011, proximity to Mexico, to Canada, and to the western states with liberalized policies apparently has induced little variation in cannabis incidence rates. Our primary intent was to create a set of benchmark estimates for state-specific and region-specific population incidence rates for cannabis use, using meta-analysis based on independent US survey replications. Public health officials and policy analysts now can use these benchmark estimates from 2002-2011 for planning, and in comparisons with newer estimates.

Project description:Background and aimsIn the United States, the availability of prescription opioids has decreased in recent years. Whether there have been corresponding changes in the likelihood of people with prescription opioid use disorder (POUD) to engage in illegal behaviors related to drug use remains unknown. We examined changes in prevalence of illegal behaviors between people with and without POUD over time, and how transactions for obtaining opioids have changed among people with POUD over time.DesignTemporal trend analysis of repeated cross-sectional data.SettingUnited States household dwelling population from all 50 states and District of Columbia.ParticipantsAdult subsamples from the 2002-14 National Survey of Drug Use and Health (n = 5393 people with POUD; n = 486 768 people without POUD).MeasurementsOutcome variables were selected illegal behaviors and sources of opioids used non-medically. POUD was defined using the Diagnostic and Statistical Manual of Mental Disorders, 4th edition, criteria. Time was treated as a continuous variable. The variable of interest for each illegal behavior analysis was the interaction between POUD diagnosis and time. Covariates included age, sex and race/ethnicity.FindingsDuring the 13-year period examined, the adjusted interaction odds ratio (AIOR) describing the change in association between POUD and selling illicit drugs increased by a factor of 2.41 [95% confidence interval (CI) = 1.56-3.71, P < 0.001]. Similar trends were noted for stealing (AIOR = 2.12, 95% CI = 1.31-3.44, P = 0.002) and for life-time history of arrest (AIOR = 1.53, 95% CI = 1.06-2.19, P = 0.021). People with POUD became less likely to receive opioids for free from friends and family [adjusted odds ratio (AOR) = 0.42, 95% CI = 0.25-0.71, P = 0.001] and more likely to buy them from friends and family (AOR = 3.29, 95% CI = 1.76-6.13, P < 0.001) from 2005 to 2014.ConclusionsIn the United States, against a backdrop of a decreasing prescription opioid supply, rates of some crimes potentially related to drug use increased among people with prescription opioid use disorder compared with those without prescription opioid use disorder from 2002 to 2014.

Project description:BackgroundPrevious studies have reported that walking cadence (steps/min) is associated with absolutely-defined intensity (metabolic equivalents; METs), such that cadence-based thresholds could serve as reasonable proxy values for ambulatory intensities.PurposeTo establish definitive heuristic (i.e., evidence-based, practical, rounded) thresholds linking cadence with absolutely-defined moderate (3 METs) and vigorous (6 METs) intensity.MethodsIn this laboratory-based cross-sectional study, 76 healthy adults (10 men and 10 women representing each 5-year age-group category between 21 and 40 years, BMI = 24.8 ± 3.4 kg/m2) performed a series of 5-min treadmill bouts separated by 2-min rests. Bouts began at 0.5 mph and increased in 0.5 mph increments until participants: 1) chose to run, 2) achieved 75% of their predicted maximum heart rate, or 3) reported a Borg rating of perceived exertion > 13. Cadence was hand-tallied, and intensity (METs) was measured using a portable indirect calorimeter. Optimal cadence thresholds for moderate and vigorous ambulatory intensities were identified using a segmented regression model with random coefficients, as well as Receiver Operating Characteristic (ROC) models. Positive predictive values (PPV) of candidate heuristic thresholds were assessed to determine final heuristic values.ResultsOptimal cadence thresholds for 3 METs and 6 METs were 102 and 129 steps/min, respectively, using the regression model, and 96 and 120 steps/min, respectively, using ROC models. Heuristic values were set at 100 steps/min (PPV of 91.4%), and 130 steps/min (PPV of 70.7%), respectively.ConclusionsCadence thresholds of 100 and 130 steps/min can serve as reasonable heuristic thresholds representative of absolutely-defined moderate and vigorous ambulatory intensity, respectively, in 21-40 year olds. These values represent useful proxy values for recommending and modulating the intensity of ambulatory behavior and/or as measurement thresholds for processing accelerometer data.Trial registrationClinicaltrials.gov ( NCT02650258 ).

Dataset Information

Epidemiological evidence on extra-medical use of prescription pain relievers: transitions from newly incident use to dependence among 12-21 year olds in the United States using meta-analysis, 2002-13.

Publications

Epidemiological evidence on extra-medical use of prescription pain relievers: transitions from newly incident use to dependence among 12-21 year olds in the United States using meta-analysis, 2002-13.

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