Adding Sputum Collection and Transportation Services for Early Identification TB Cases in Hard-to-Reach Difficult Terrain — Will It Help ?

A community engagement project was designed and implemented to reach 10.6 million population in 13 districts of Uttarakhand state—India, to identify presumptive TB patients (PTBPs) and link to free diagnostics services, either through referral or sputum collection and transportation (SCT). The objective of this study is to determine additional yield of TB patients achieved by providing SCT services in comparison to referrals of PTBPs identified in hard-to-reach areas. This was before and after comparative study conducted between April-June 2014 (2Q2014-before) to July-September 2014 (3Q2014-after). SCT was advised for all PTBPs identified from community level interventions between July-September 2014 (3Q2014-after). In 3Q2014, additional 279 (34%) PTBPs were examined in the microscopy centre with an additional 36 (51%) new smear positive (NSP) patient diagnosed. A total of 46 NSP (128%) were contributed by SCT alone. Higher proportion (94%) of TB patients was initiated on treatment in 3Q2014 in comparison to 2Q2014 (91%). SCT as a strategy for early case detection in hard-to-reach difficult terrain yields positive results in comparison to mere referral of PTBPs.


Introduction
The recent Global TB report raised concerns over the missing "million" Tuberculosis (TB) cases and this is believed to be concentrated around countries with high TB burden-including India [1].The burden is believed to be under-reported as a million cases (estimated) are being missed from routine programme reporting system [2].Few evidences relate missing cases to: lack of awareness in community about TB services provided by government, prevailing stigma and misconceptions about TB, diagnosis and treatment seeking behaviour, low notification from heterogeneous private sector who are first point of contact, and missed diagnosis after the patients reaches the microscopy centers under programme

Study Setting, Design and Interventions
The study was conducted between April-June 2015 in through these groups), and mid-media activities (creating TB awareness through wall painting, public announcements using mike speakers, street plays etc.) [11].
In addition, CVs made house-to-house visits (active case finding-ACF), to create awareness about TB which is known as Axshya SAMVAD (sensitization, awareness among marginalized and vulnerable areas of district).Local healthcare providers in the village-Rural Healthcare providers (RHCPs) were sensitized and engaged in the project who were regularly visited by CVs for referrals or SCT of PTBPs to microscopy centers (MC) (see Figure 1).This holistic approach led to identification of PTBPs who were referred for examination and those who were found sputum positive were put on treatment as per programme guideline [12].Those who had these symptoms were given the choice of referral or SCT services.For SCT services, CVs were trained to collect quality sputum and adhere to infection control measures while transporting the sputum.CVs were paid sum of Rs 100 (USD 1.62) for two samples collected per PTBPs identified.Payment was made when the sputum smear positivity was at 7% of the total samples collected.This cut-off was arrived using programme and project data.
Of the total 10.6 million, about 400,000 individuals were reached through the project activities during the 6 months and were included in the study for screening of PTBPs, diagnosis and treatment.In 2Q2014, the project referred identified PTBPs residing within 5 km (in hilly area) and 10 km (plain area) of nearest public health facility with microscopy centre (MC) for sputum smear examination.PTBPs who did not meet these criteria were given a choice of referral or SCT (two samples-spot and morning samples).Only 18% of those referred reached the MC.In 3Q2014, the strategy was revised to offer SCT services for all PTBPs irrespective of the distance from the MC.PTBPs denying the SCT services were referred with a referral slip.The results were collected by the CVs and communicated to PTBPs and those smear positives were initiated on treatment as per National Tuberculosis Programme (NTP) guideline [12].The project referrals and SCTs were recorded in the special forms designed for the project and TB laboratory register of the MC.The project staff at district level randomly verified about 10% of all PTBTs and validated the receipt of services during the routine monitoring and supervision visits.Second level of monitoring was conducted by programme managers placed at the state head quarter.

Data Collection, Entry, and Analysis
The aggregated secondary data collected from project forms of community volunteers included variables-number of household visited, community meetings and mid-media activity conducted, PTBPs identified, total referred and SCT done for smear examination.In addition to these variables we analysed data col-

Results
In  1).Almost 73% of the LTR could have been examined by promoting SCT.In 3Q2014, 200,000 individuals were reached, of which 2321 PTBPs were identified and 241 reached the MC.The referrals declined from 74% in 2Q2014 to 63% in 3Q2014 (p ≤ 0.001) with no significant difference in referrals reaching the MC (18%-2Q2014 vs 16%-3Q2014) (p = 0.14) (Table 2).SCT services was promoted in 3Q2014, which almost doubled from 494 in 2Q2014 to 855 in 3Q2014 with an additional 361 SCTs (73%) (p ≤ 0.001).SCT led to more PTBPs examination in 3Q2014 (n = 1096, 47%) in comparison to 2Q2014 (n = 817, 43%) (p ≤ 0.001) with an additional 279 examinations (34% increase).This also led to an additional 36 (51% increase) new smear positive diagnosed without the loss in the quality of smear examinations and no difference in smear positivity rate between two periods (p = 0.77).Similarly higher proportions of TB patients were initiated on treatment-94% in 3Q2014 versus 91% in 2Q2014.

Discussion
Uttarakhand is among the highest TB burden states in India (95 new smear positives/100,000 populations) [2].Nearly 40% of the public health facilities where MCs are located (for sputum diagnosis) is categorised as "difficult to reach" [13].As a result one would need to travel to district hospitals and this would incur additional cost for transportation, stay at district and loss of day wages.For these reasons, the referrals of the identified PTBPs from these community will have X-rays, and these were not recorded under project or as project contribution.
Conceptually, SCT would support early diagnosis, minimize TB infection transmission in community, reduce the number of doctor visits thereby preventing delay in diagnosis and treatment, and also contribute to additional TB cases in the hard-to-reach communities [19] [20].SCT services also provide patient centred approach as the communities have language barriers, are selfstigmatized and discriminated which are prevalent in marginalized and vulnerable communities.The cost of identifying one TB patient through these interventions is estimated to be less than 100 USD [21].However, a cost utility analysis of this intervention is underway.
Few limitations to this study are, 1) findings of the study are applicable to similar hard-to-reach hilly terrains where there is difficulty in reaching the health facilities 2) routine project data reports were used and lacks information on age and gender, 3) the project focused on smear positive cases only and other TB cases, like smear negative and extra-pulmonary were not included.

Conclusion
The results of this study highlight the need for establishment of SCT services in hard-to-reach areas.Forty-six additional new sputum smear positive TB patients were identified by offering SCT services which could have been missed by referral alone.In the absence of these services, PTBPs would have sought care from various service providers and not notified to the system contributing to the missing cases.This strategy would benefit TB programmes, however, one needs to prioritize the areas and create a network of volunteers to offer quality SCT services in hard-to-reach locations in India and elsewhere.

[ 3 ]
[4] [5][6].Taking cognisance of the Global Technical Strategy; Government of India, developed National Strategic Plan for TB with an aim to reach, sensitize and engage, communities in hard-to-reach areas for TB prevention and care, thereby reduce the missing million cases[7] [8].In lieu with global and national strategy, The International Union against Tuberculosis and Lung Disease (The Union), South East Asia Office launched Project Axshya (meaning TB free) to support the programme with an objective to engage civil society to increase awareness about TB in community through Advocacy, Communication, and Social Mobilization (ACSM) strategy.The project, Project Axshya, was implemented in 300 districts of India across 21 states and reaching millions of households with support from The Global Fund[9].Project Axshya implemented series of community engagement activities through a network of Non-governmental Organizations (NGOs) and community volunteers.Local community volunteers were identified and trained, who would then visit the mapped villages, interact with village members and inform them about Tuberculosis, prevention and care.All Presumptive TB Patients (PTBPs) identified during the community level activities would then be referred for diagnosis at publicly funded microscopy centers (MC).In addition sputum collection and transportation (SCT) services were also provided for needy PTBPs.Over the period, identified PTBPs were given the choice of referral or SCT services through volunteers and the additional yield of TB patients through SCT services over referrals were not known.Therefore, the objective of this study is to determine additional yield of TB patients achieved by providing SCT services in comparison to referrals of PTBPs identified in hard-to-reach areas.
Community volunteers engaged under the NGOs were given two day training on TB basics-signs and symptoms, diagnosis, treatment, referrals and sputum collection and transportation.The main criteria for identification of PTBPs during the activities (outlined above) or during the visit to house-to-house were 1) cough ≥ 2 weeks 2) weight loss 3) loss of appetite 4) evening rise in temperature.
by volunteers regarding reasons for referrals not reaching MC during their follow-up visits.The consolidated number of PTBPs identified, examined, total smear positive TB patients diagnosed and initiated on treatment were analysed.The comparison of proportions was done by Chi-square test.The p-value ≤ 0.05 were considered statistically significant.This study did not use individual patient information and identifiers.The Ethics Advisory Group of the International Union Against Tuberculosis and Lung Disease (The Union), Paris, France approved the study (approval no 17/16).

higher
LTRs.Higher LTRs are associated with distance from health facility (>10 km) and farming; results in delay in diagnosis and treatment[14] [15].Despite promoting SCT in 3Q2014, 63% of PTBPs patients were still referred for diagnosis for several reasons; 1) village to MC distance was > 40 km and CVs were reluctant to travel twice to collect spot and early morning samples, 2) PTBPs denied for SCT, and 3) PTBPs opted for referrals.Other reasons that could have contributed in LTR are; a) PTBPs visited MC without the referral slips and had not been registered as project referrals or visited another MC of their choice, b) visited qualified and unqualified private practitioners not engaged by the project, c) might have related the symptoms with underlying chronic conditions or to smoking or to seasonal cold environment condition and did not visit the MC, d) underlying stigma with TB, difficult terrain, limited availability of transportation facility, and need for multiple visits[15] [16].The results of this study highlight SCT services could increase number of PTBPs examined for Tuberculosis in hard-to-reach areas.Secondly, community interventions activities like ACF need to be supported by SCT services for early identification of PTBPs and reduce LTR[17] [18].In this study, SCT alone contributed to the diagnosis of additional 128% smear positive TB patients.The smear positivity rate for SCT was 10% (82/855) and 7% (32/494) in 3Q2014 and 2Q2014, respectively, highlight the quality sputum collected for examination.Additional training on quality sputum collection and hands-on guidance note to CVs in 3Q2014 could have improved the quality of SCT and overall increase in smear positivity.The project focused on the smear positive cases and those PTBPs who were negative on smear examinations were referred for the chest B. Thapa et al.DOI: 10.4236/jtr.2017.54023226 Journal of Tuberculosis Research 2Q2014, 30,835 households were covered through active case finding activity (ACF-known as Axshya SAMVAD), organized 641 community meetings and sensitized 138 RHCPs while in 3Q2014, 45,068 households were visited through ACF (48% increase), organized 744 community meetings (16% increase) and B. Thapa et al.DOI: 10.4236/jtr.2017.

Table 1 .
Reasons for referrals not reaching MC during 2Q2014.

Table 2 .
Change in the PTBPs identified and examined by referrals and sputum collection and transportation before and after the intervention.