Research scope across the smoking-behaviour materials

The two articles examine different kinds of smoking-related research questions. One focuses on population-level monthly trends in England, while the other focuses on individual-level long-term health outcomes linked to age at smoking onset.

1. Main research aim in Beard et al. 2017

According to Beard et al. 2017, the main aim was to estimate whether monthly changes in smoking-related behaviours were associated with monthly changes in alcohol-related behaviours in England.

The abstract states that the paper aimed to estimate how far monthly changes in:

• prevalence of cigarette smoking,
• motivation to quit smoking, and
• attempts to stop smoking

were associated with monthly changes in:

• prevalence of high-risk drinking,
• motivation to reduce alcohol consumption, and
• attempts to reduce alcohol consumption.

The article also explains that the monthly Smoking Toolkit Study and Alcohol Toolkit Study created a rare opportunity to examine monthly population-level associations over time between smoking and alcohol behaviours in England. Its analyses specifically assessed associations between:

• smoking prevalence and high-risk drinking prevalence,
• motivation to quit smoking and motivation to reduce alcohol consumption,
• attempts to stop smoking and attempts to reduce alcohol consumption.

So, the research scope in Beard et al. 2017 is mainly about short-term temporal co-movement between smoking and alcohol-related behaviours at the population level.

2. Main research aim in Fa-Binefa et al.

Fa-Binefa et al. had a different aim. This study examined whether the age at which people started smoking was associated with later cardiovascular disease and mortality outcomes.

The title, Early smoking-onset age and risk of cardiovascular disease and mortality, shows the central research question clearly. The methods excerpts further indicate that the authors studied whether smoking-onset age was associated with:

• cardiovascular disease events,
• cardiovascular mortality, and
• all-cause mortality.

The study also investigated the dose-response shape of this relationship, testing whether the association between smoking-onset age and these outcomes was linear or non-linear. The discussion confirms that the study analysed the linear and non-linear dose-response relationship between smoking-onset age and these health outcomes.

So, the research scope in Fa-Binefa et al. is about whether earlier smoking initiation predicts worse long-term cardiovascular and mortality risk at the individual level.

3. Key difference in scope between the two articles

• Beard et al. 2017: examines monthly population-level associations between smoking and alcohol-related behaviours in England.
• Fa-Binefa et al.: examines long-term health associations between smoking-onset age and cardiovascular or mortality outcomes.

In simple terms, Beard et al. 2017 asks whether smoking and alcohol behaviour trends change together across months in a population, while Fa-Binefa et al. asks whether starting smoking earlier is linked to worse later-life health outcomes.

4. Summary

The main research aim of Beard et al. 2017 was to test monthly population-level associations between smoking behaviours and alcohol-related behaviours in England. The main research aim of Fa-Binefa et al. was to test whether earlier smoking-onset age is associated with increased risk of cardiovascular disease, cardiovascular mortality, and all-cause mortality.