As of my last knowledge update in January 2022, I cannot provide real-time data or access to the latest research studies. However, I can provide a general overview of the types of research studies that have been conducted on disposable vapes up to that point.

Research studies on disposable vapes primarily fall into several categories, addressing different aspects of these products, including health effects, usage patterns, efficacy as smoking cessation tools, and more. Here’s a comprehensive analysis based on the existing research landscape:

1. Health Effects:
   • Chemical Composition: Studies have analyzed the chemical composition of disposable vape aerosols, examining potential harmful substances and comparing them to traditional cigarette smoke.
   • Toxicity: Research has explored the toxicity of the ingredients in disposable vape e-liquids, assessing the impact on respiratory and cardiovascular health.
   • Biomarkers: Some studies have investigated biomarkers associated with disposable vape use, aiming to understand any short-term or long-term physiological effects.
2. Smoking Cessation:
   • Effectiveness: Research has assessed the effectiveness of disposable vapes as smoking cessation tools. Studies compare cessation rates between individuals using disposable vapes and other smoking cessation methods.
   • Nicotine Reduction: Some studies focus on the ability of disposable vapes to help users gradually reduce nicotine intake, potentially aiding in quitting smoking altogether.
3. Youth Initiation and Use Patterns:
   • Gateway Effect: Studies have explored whether the availability and marketing of disposable vapes contribute to youth initiation of nicotine use and whether they act as a gateway to traditional smoking.
   • Prevalence: Research has examined the prevalence of disposable vape use among different age groups, with a particular focus on youth and young adults.
4. Marketing and Advertising Impact:
   • Influence on Behavior: Studies analyze how marketing and advertising of disposable vapes influence consumer behavior, focusing on factors such as flavor appeal, packaging design, and promotional strategies.
   • Social Media Impact: Some research explores the impact of social media marketing on disposable vape popularity, especially among younger demographics.
5. Dual Use and Smoking Patterns:
   • Dual Use Trends: Research has investigated patterns of dual use, where individuals use both disposable vapes and traditional cigarettes, examining the potential impact on overall tobacco consumption.
   • Switching Behavior: Studies explore whether disposable vapes contribute to a transition away from combustible tobacco products or if users continue smoking concurrently.
6. Regulatory and Policy Implications:
   • Effectiveness of Regulations: Research assesses the effectiveness of existing regulations and policies regarding disposable vape, examining their impact on usage patterns, accessibility, and public health outcomes.
   • Perceptions of Regulation: Studies analyze how users perceive regulations, age restrictions, and marketing restrictions related to disposable vapes.
7. Consumer Awareness and Perceptions:
   • Knowledge Levels: Research examines the level of awareness and knowledge among consumers regarding the health risks, ingredients, and overall safety of disposable vapes.
   • Perceived Harm: Studies investigate how users perceive the harm associated with disposable vapes compared to traditional smoking.
8. Long-Term Health Outcomes:
   • Cohort Studies: Longitudinal studies aim to assess the long-term health outcomes associated with the consistent use of disposable vapes, focusing on respiratory health, cardiovascular effects, and other potential risks.

It’s important to note that the landscape of research on disposable vapes is continually evolving. New studies and findings may emerge, influencing our understanding of the impact of these products on public health. For the latest and most accurate information, it’s recommended to consult recent scientific literature and updates from health organizations.