Background
According to the 2010 Global Tobacco Survey, 47.4% of men in Vietnam are current smokers, a smoking prevalence that is the second highest among South East Asian countries (SEAC) [
1]. If current smoking rates are not addressed it is estimated that in 10 years tobacco use will be responsible for about 25% of adult male deaths in Vietnam [
2]. Promoting cessation is the key to reversing current global trends in tobacco-related mortality over the next few decades [
2],[
3].
The World Health Organization’s (WHO) Framework Convention on Tobacco Control (FCTC) includes, as a core provision, increasing access to evidence-based tobacco use treatment [
4],[
5]. Article 14 of the WHO FCTC states that “each country shall take effective measures to promote cessation and adequate treatment for tobacco dependence.” Despite the availability of evidence-based approaches to addressing tobacco use few low- and middle-income countries (LIMCs) have integrated Article 14 recommendations into the routine delivery of preventive services [
5].
Barriers to implementing cessation services in public health systems in LMICs include inadequate training of health care providers and lack of systems and staffing to support these services [
6],[
7]. In addition, although a growing literature demonstrates the effectiveness of strategies to increase the delivery of smoking cessation treatment in primary care, these studies have been conducted almost exclusively in high-income countries [
8]. Effective implementation strategies include clinical reminder systems and linking health care settings with state and national telephone counseling programs via a referral system, thus offering providers the opportunity to delegate cessation counseling and follow-up [
9]-[
12].
Smoker’s quitlines are an effective population-based method for increasing the reach of evidence-based tobacco use treatment. However, in LMICs this may not be a feasible option [
13]. In fact, the WHO recently published guidelines for implementing Article 14 which state: “In order to promote tobacco cessation and develop tobacco dependence treatment as rapidly as possible, and at as low a cost as possible, countries should use existing resources and infrastructure” [
13]. In Vietnam, as in other LMICs, there are infrastructure elements, including a robust public health delivery system with an extensive network of community health workers (CHWs) (referred to as village health workers in Vietnam) that could be leveraged to enhance tobacco use treatment. In LMICs, CHWs build bridges between the formal health system and communities increasing access to health services [
14],[
15]. CHWs are critically important members of the public health care system. Therefore, it is surprising that in LMICs there are no studies evaluating the role of CHWs and/or village health workers as a referral resource for increasing access to evidence-based smoking cessation services, and we are aware of only one study in the U.S [
16].
Because in Vietnam this workforce is referred to as village health workers (VHWs) we will use that term in this article. The primary purpose of this study was to examine the attitudes and beliefs among VHWs towards expanding their role to include delivering smoking cessation interventions and potential barriers and facilitator associated with implementing a VHW-delivered cessation intervention.
Methods
Study subjects and recruitment
The Vietnamese health care system is organized into four administrative levels: central, province, district and commune level. At the central level is the Ministry of Health (MOH), which formulates and implements national health policies and programs. The provincial-level health system consists of Provincial Health Departments and Preventive Health Centers, which are administered by the Provincial People’s Committee in each province. At the district level, the District People’s Committee administers district health centers and district-level hospitals. Within districts the commune health centers (CHCs), which are comparable to community health centers in the US, serve as the primary access point for public health and preventive care services in Vietnam, each providing services for an average of 5000-7000 people in its surrounding community.
CHCs are staffed with five to six commune health providers including one physician and three to five other health professionals (e.g., assistant physicians, nurses, midwives and/or pharmacists). In addition, each CHC is supported by a network of eight to 10 VHWs who conduct outreach in the villages where their CHC is located. They are under the direct management and direction of the head of the CHC and, in addition to coordinating with the CHC medical staff, they collaborate with local leaders and community-based organizations in their village.
VHWs have five main responsibilities: 1) delivering health information; 2) delivering counseling on disease prevention; 3) promoting maternal and child health and family planning; 4) providing first aid care and referring patients to the CHC; and 5) implementing national health programs at the village level. In addition, they serve as a bridge between the local CHCs and the community by, for example, collaborating with clinicians at CHCs to provide home-based follow-up to ensure that patients are adhering to clinical care plans. VHWs work within a highly formal, vertical organizational structure in which they do not have the autonomy to develop new programs or adapt current prevention program to the local context.
Participant recruitment
We recruited participants from four CHCs in Hanoi Province. Together, these CHCs have 89 VHWs. Potential participants were invited to a meeting by the Director of each of the CHCs during which the research assistant provided an overview of the study. VHWs who were interested in participating were asked to provide contact information and sign up for pre- specified dates and times for the focus groups. Participants were eligible if they were working for at least one year as a VHW at the time of recruitment, and each received $4 (80,000 VND) as compensation for his or her time. The institutional review boards of the Institute of Social Medical Studies (ISMS) and the New York University School of Medicine approved this research.
Data collection
Four focus groups were conducted in November 2012 with seven to eight VHWs in each (n = 29). A doctoral level facilitator from ISMS, the partnering research institution in Vietnam, conducted the focus groups. We used a grounded theory approach in developing the interview guide (Additional file
1) that was informed by Bowen’s key areas of focus for assessing the feasibility of implementing evidence-based interventions or new care processes (e.g., acceptability, practicality) [
17],[
18]. The guide was developed in English and then translated into Vietnamese by an ISMS translator who is both fluent in Vietnamese and English. The lead investigator in Vietnam, who is bilingual, reviewed the translation. The focus groups began with background questions about VHWs’ scope of work, challenges in carrying out their current responsibilities, and their knowledge, attitudes and beliefs about current national and local tobacco control activities, including cessation services. We then explored their attitudes towards expanding their role to include smoking cessation counseling, and the acceptibility and practicality of serving as a referral resource for their CHC colleagues. Finally, we explored the potential barriers and facilitators (e.g. policy, training) related to implementing a VHW-delivered cesstion program. Focus groups were digitally recorded and transcribed verbatim in Vietnamese by ISMS before translating the transcripts into English for analysis.
Analysis
Content analysis was conducted by two members of the research team (DS, HP). ATLAS.ti, 6.1, a qualitative analysis software program, was used to facilitate the analysis, but the focus group coding was undertaken manually. Data analysis consisted of a three-level coding process: open coding of all four transcripts by both members of the research team to identify relevant patterns and preliminary codes in the interviews, followed by focused coding to identify clustered concepts and to organize ideas, and finally identification of major themes [
19]-[
21]. Regular discussions between DS and HP were held to achieve consensus on emerging themes from the descriptive to the analytical stages. A final codebook was developed and finalized during this iterative process. All transcripts were then independently coded by the same two research team members.
Discussion
VHWs described their current roles and responsibilities as consistent with offering community- based smoking cessation assistance to CHC patients and village members. They also described what they perceive as particular advantages of expanding their role to include this preventive services compared to their CHC colleagues. These included a deeper knowledge of the social context of smoking than health care providers and the strong trust and respect that village members have for VHWs as advocates for health promotion and disease prevention. VHWs further endorsed the specific referral model we describe in which health care providers would refer smokers to VHWs who would serve as “clinician extenders” offering more intensive treatment outside of the clinic setting.
Although VHW’s attitudes toward treating tobacco use were positive, they noted several policy- and organization-level barriers to expanding their role. The most commonly cited was that cessation services have not been defined as one of the national prevention priorities. This has several implications including the subsequent lack of training and other resources, and a lack of additional funding and incentives that accompany implementation of these priority programs. Moreover, they repeatedly explained that they and their colleagues in the CHCs do not have the authority to conduct programs without specific directives from the District health Directors and MOH.
As study participants’ comments indicate, the gaps in tobacco cessation services in Vietnam are not the result of a lack of commitment to tobacco control. In 2004 the Vietnamese government ratified the FCTC, and in 2012 it enacted an ambitious National Tobacco Control Action Plan (Decision No. 1315/QD-TTg) for the Implementation of the FCTC. As described by VHWs, Vietnam is implementing that plan with comprehensive smoke-free policies and hard-hitting media campaigns that are raising awareness of the dangers of tobacco use and changing social norms. Notably, the Action Plan calls for integrating cessation services into national health and education programs and builds on the MOH 2011 Annual Review which stated that strengthening the national infrastructure to ensure access to evidence-based cessation services is one of the MOH’s highest priorities [
22].
Given the documented commitment to the full range of the FCTC treaty, it is important to ask why, in Vietnam and other LMICs, implementation of Article 14 has lagged behind other components of the treaty. One barrier may be the perception that providing cessation assistance would require an extra level of resources, including system changes and workforce development, not needed to implement smoke-free air policies and media campaigns. Additionally, despite evidence that counseling alone can reduce tobacco use, the emphasis on pharmacotherapy as a core component of treating tobacco use and dependence may also reduce enthusiasm in countries with limited public health resources. Finally, gaps in cessation services may be due to a lack of demonstrable cost-effective models for integrating adequate treatment of tobacco use into routine clinical and preventive service delivery.
The model we proposed to VHWs in the focus groups is based on a growing literature that demonstrates the benefits of simplifying the provider’s role by offering the means and opportunity to delegate additional counseling, in this case to a VHW [
9]-[
12],[
23]. Similar to models in which smokers are referred by clinicians to national or statewide telephone quitlines, in the proposed model providers would ask about tobacco use, advise patients to quit, and refer them for additional treatment to a network of trained VHWs.
A recent study conducted in Malaysia also supports findings that embedding referral systems in primary care can increase adoption and reach of tobacco use treatment guidelines [
6]. This study, conducted in diabetes clinics, found that providing a referral to stand alone cessation clinics motivated clinicians to routinely provide cessation advice. However, the Malaysian model of creating stand-alone cessation clinics is too expensive to disseminate widely and stands in contrast to recommendations from the WHO’s recently published guidelines for implementing Article 14 which state: “In order to promote tobacco cessation and develop tobacco dependence treatment as rapidly as possible and at as low a cost as possible, countries should use existing resources and infrastructure” [
13].
Consistent with WHO Guidelines for implementing Article 14, a VHW referral model would leverage the existing workforce and offer a potentially sustainable resource for ensuring wide access to treatment for smokers who want to quit. In Vietnam, as in other LMICs, community and village health workers have a strong track record of effectively delivering preventive services and increasing the reach of these programs [
24]-[
27]. They are also respected members of their communities, thus their involvement could contribute to changes in community norms regarding tobacco use and long terms sustainability of tobacco control efforts [
24]. Notably, health care providers appear to support a VHW role in treating tobacco use. A survey of health care providers in 23 CHCs in Hanoi found that 90% strongly agreed that they would refer patients to a trained VHW for smoking cessation treatment, and 84% strongly agreed that VHWs could be trained to provide counseling [
28].
Other challenges to expanding VHWs’ roles to include smoking cessation counseling were noted by focus group participants. These included a need for training that would both expand content knowledge and communication skills, an already heavy work load with salaries that do not necessarily match the time commitment required, and a need to engage other health care providers, community organizations and village leadership in any new smoking cessation initiative. However, next to training, the most commonly described challenge was the lack of a national program to integrate tobacco use treatment into the delivery of preventive services. According to focus group participants, explicitly making this a priority prevention program would address many of the other barriers.
This study has several limitations. First, the study was conducted with VHWs from urban CHCs. We therefore cannot be sure that the findings are generalizable to more rural settings. However, the scope of the work that the VHWs described, which is consistent, from their perspective, with offering cessation assistance, is standardized nationwide. Given the hierarchical nature of the public health care delivery system, the barriers described would likely apply to settings in other geographic location, but this requires additional confirmation. Second, the transcripts were translated into and coded in English. However, all translations were conducted by a bilingual RA and then reviewed by a second bilingual researcher (Dr. Nguyen). We believe this approach adequately addressed concerns about ensuring “conceptual equivalence” [
29],[
30].
Our findings suggest that a team approach to treating tobacco use that allows providers to refer smokers to VHWs for further assistance is a promising model for extending the treatment of tobacco use beyond primary care settings and increasing access to evidence-based care. There is an urgent need to test the effectiveness and cost-effectiveness of this and other strategies for implementing tobacco use treatment guidelines in order to support and inform national tobacco control policies in Vietnam and other LMICs.
Competing interests
The authors declare that they have no competing interests.