Smoking is the leading preventable cause of death and disease in the world and accounts for 4500 deaths and 44 000 hospital admissions annually in Ireland.¹ Ireland's Health Service Executive (HSE) spends approximately €280 million a year treating tobacco-related diseases.²

In 2021, smoking prevalence in Ireland was 16.1%.³ This is down from 23% in 2016.⁴ Significant reductions in current smoking are required to meet the Tobacco Free Ireland 2025 target of <5% smoking prevalence.⁵

As per the HSE's Tobacco Free Campus Policy, smoking by employees, patients, visitors and any other parties has been prohibited on all HSE campuses since 31 December 2015.⁶ Compliance with this policy is poor. A recent audit showed that up to 11% of people observed on hospital grounds had a cigarette in their hand.^{Reference Evans, Faney, McHugh, O'Byrne and Goggin7}

According to the HSE report Smoking Cessation and Mental Health,^{Reference Robson and Potts8} smoking rates among adults with a common mental disorder such as depression or anxiety are almost twice as high compared with adults who are mentally well and three times higher for those with schizophrenia or bipolar disorder. People with substance use disorders, with or without a comorbid mental health problem, have the highest rates of smoking. In every area of mental health, even child and adolescent mental health services, perinatal psychiatry and older adult care, smoking rates are disproportionately high. People with a mental illness tend to smoke more heavily and are more dependent on nicotine than those without a mental illness. They are just as likely to want to stop smoking but often lack confidence in their ability to quit and historically have not routinely been offered specialist support to quit.⁹

People with mental health conditions die on average 10–20 years earlier than the general population, and smoking is the single largest factor accounting for this difference.^{Reference Harker and Cheeseman10}

Implementing strategies to reduce the high prevalence of smoking in people generally, and more specifically in smokers with mental disorders, will not only have a positive impact on quality of life, but also has the potential to realise cost savings for the HSE.⁹

Besides improvements to physical health, in common with the general population, people with mental illnesses who stop smoking often require lower doses of medication.¹¹ This helps to minimise some of the negative impacts of these medications.

Furthermore, there is comprehensive evidence that smoking cessation is associated with reduced depression, anxiety and stress, and improved positive mood as large for those with mental health problems as those without, and the effect is equal or greater than those of antidepressant treatment for mood and anxiety disorders.^{Reference Taylor, McNeill, Girling, Farley, Lindson-Hawley and Aveyard12}

The issue of the high burden of smoking and poor provision of smoking cessation support to people with mental illnesses has been identified internationally.¹³ Attitudes, expectations and culture in relation to smoking can be a particular challenge in mental health services.^{Reference Kerr, Woods, Knussen, Watson and Hunter14} In Ireland, the mental health sector was exempted from smoke-free workplace legislation,^{Reference Jochelson15} and this challenge has also been associated with poor delivery of smoking cessation support to patients within secondary mental health services compared with other service settings.^{Reference Currie, Keogan, Campbell, Gunning, Kabir and Clancy16}

It has been demonstrated that, despite higher smoking prevalence compared with other patients, motivation to quit, acceptability of cessation advice and quit rates similar to those for other patients, provision of clinical care for tobacco use among patients in secondary mental health services was approximately one-third that seen in Irish general in-patient samples.^{Reference Burns, Lucey, Strawbridge, Clancy and Doyle17}

Tobacco Free Ireland identifies persons with mental health problems as a priority group, as does the HSE Tobacco Free Ireland Programme Plan 2018–2021.¹⁸ The Department of Health's mental health policy also identifies the need to better respond to the particular physical needs of people with mental health problems.¹⁹

Table 1 shows data on smoking cessation and e-cigarette usage in Ireland from the Healthy Ireland Surveys for 2019 and 2021. An important finding is that 44% of smokers had attempted to quit in 2021,³ although only 25% of attempts to quit reported in 2019 were successful.⁴

Table 1 Overview of smoking cessation and e-cigarette usage in Ireland, 2019⁴ and 2021³

Source: Healthy Ireland Survey reports, 2019 and 2021.^3,4

For nicotine replacement therapy the HSE recommends gum, lozenges, patches, inhalers and mouth sprays.²⁰ The HSE's e-cigarette policy states ‘There are no properly conducted scientific studies to prove that e-cigarettes are an effective aid for sustained smoking cessation’.²⁰ It goes on to report that ‘there is a legitimate concern that, because e-cigarettes resemble ordinary cigarettes, their use may promote smoking. Accordingly, they should be prohibited in the same way that tobacco products are. Patients and members of the public should be advised that we cannot say that they are safe and so they may not be used within the bounds of any health service campus’.²⁰ However, in the UK, Public Health England have stated that there is stronger evidence in this year's report that nicotine vaping products are effective for smoking cessation and reduction.^{Reference McNeill, Brose, Calder, Simonavicius and Robson21}

It has been found that e-cigarette users have greater concentrations of biomarkers of nicotine, tobacco-specific nitrosamines, volatile organic compounds and metals compared with people who have never used tobacco. However, these concentrations were significantly lower than those observed in cigarette smokers.^{Reference Goniewicz, Smith, Edwards, Blount, Caldwell and Feng22}

In 2014, an international expert panel convened by the Independent Scientific Committee on Drugs published a report stating ‘Cigarettes are the nicotine product causing by far the most harm to users and others in the world today. Attempts to switch to non-combusted sources of nicotine should be encouraged as the harms from these products are much lower’.^{Reference Nutt, Phillips, Balfour, Curran, Dockrell and Foulds23}

In 2019, a New England Journal of Medicine editorial stated that ‘a consensus has emerged that e-cigarettes are safer than traditional combustible cigarettes’.^{Reference Borrelli and O'Connor24} It has been argued that ‘harm reduction’ approaches should be used, encouraging smokers to switch to e-cigarettes. England and New Zealand are taking a harm reduction approach, encouraging or supporting smokers to switch to vaping.

Public Health England's seventh independent report on vaping in England, carried out by researchers at King's College London, found that nicotine vaping products were the most popular aid (27.2%) used by smokers trying to quit in England in 2020.^{Reference McNeill, Brose, Calder, Simonavicius and Robson21} It is estimated that in 2017, more than 50 000 smokers stopped smoking with the aid of a vaping product who would otherwise have carried on smoking. In 2020, 38% of surveyed smokers believed that vaping is as harmful as smoking – 15% believed that vaping is more harmful. Using a vaping product as part of a quit attempt in local smoking cessation services had some of the highest quit success rates – between 59.7% and 74% in 2019–2020.^{Reference McNeill, Brose, Calder, Simonavicius and Robson21} The UK Action on Smoking and Health Report stated that e-cigarette use among 11- to 18-year-olds has to date remained low, but on the downside their potential as an adult quitting aid has not been fully realised.^{Reference Harker and Cheeseman10}

There is strong evidence from multiple randomised controlled trials that nicotine replacement therapy, bupropion, varenicline, face-to-face behavioural support, telephone support, interactive websites and written self-help materials can increase smoking cessation rates when used in a quit attempt.^{Reference Cahill, Stevens, Perera and Lancaster25} According to the 2021 Cochrane Review on e-cigarettes for smoking cessation, ‘There is moderate certainty evidence that e-cigarettes with nicotine increase quit rates compared to nicotine replacement therapy’.^{Reference Hartmann-Boyce, Lindson, Butler, McRobbie, Bullen and Begh26} The review authors did not detect evidence of harm from nicotine e-cigarettes, but the longest follow-up was only 2 years.

Results

Of the 57 approved centres, 40 (70.2%) were included in the study where there was a clinical nurse manager available to respond to the survey questionnaire.

Results are outlined in Table 2. Eight units (20%, n = 40) reported that they were not tobacco-free sites; the remaining 32 units (80%) reported that they were tobacco free. Only two units (5%) reported that they were strictly enforcing the tobacco-free site policy. Thirty-eight units (95%) allowed patients to smoke in designated areas on the tobacco-free campus. Examples of these designated areas were enclosed gardens attached to the unit.

Table 2 Outline of results of survey of mental health approved centres in Ireland

All units reported having a ban on e-cigarette use, but again e-cigarettes were allowed in the 38 units that had designated smoking areas.

Twenty-six units (65%) had access to a smoking cessation officer. Fourteen units (35%) did not. All 40 units reported offering nicotine replacement therapy routinely when admitting patients, but 28 units (70%) stated that the replacement therapy offered was rarely taken up by the patient. Nine units (22.5%) stated that it was usually taken up and two units reported an uptake rate of around 25%. One unit stated that it was usually only taken up by patients who were in isolation and could not access the smoking area.

Nicotine patches were the most common form of nicotine replacement, with 39 of the 40 units (97.5%) offering them. Twenty-eight units (70%) offered nicotine inhalers. Twenty-five units (62.5%) had nicotine gum. Nine units (22.5%) used nicotine spray.

Twenty-one units (52.5%) reported that they commonly had patients complaining about not being allowed to smoke. This occurred when the designated smoking areas were closed at night or patients were in isolation or seclusion. Of the 19 units (47.5%) that did not have patients complaining about not being allowed to smoke, the reason given was that there were no restrictions on smoking. Two units reported frequently receiving complaints from non-smokers about the high levels of second hand smoke, which made it difficult for them to enjoy the enclosed outdoor areas.

Twenty-two units (55%) reported having had nursing staff threatened by patients who had restrictions put on their smoking.

Twenty-five units (62.5%) had had risk incidences involving cigarettes or cigarette lighters (e.g. self-harm and intentional damage to property). Two units mentioned having to have furniture and wallpaper changed because of damage from smoke exposure.

Only one unit reported a risk incident involving e-cigarettes and that was having a fire alarm triggered by e-cigarette smoke. Another unit expressed concerns about the potential use of e-cigarettes as a weapon, as some models can be quite weighty.

Twenty-two units (55%) stated that they would support the use of e-cigarettes as a harm reduction tool to help patients quit smoking and maintain a strict tobacco-free campus. Fourteen units (35%) said they would not support this. Four units (10%) said they did not know whether there was enough evidence to support this. One unit had helped several patients quit smoking by procuring e-cigarettes for them with the patients’ money.