The role of alcohol use in pesticide suicide and self-harm: a scoping review.

PURPOSE: Suicide and self-harm by pesticide self-poisoning is common in low- and middle-income countries (LMICs). Alcohol is an important risk factor for self-harm; however, little is known about its role in pesticide self-poisoning. This scoping review explores the role that alcohol plays in pesticide self-harm and suicide. METHODS: The review followed the Joanna Briggs Institute scoping review guidance. Searches were undertaken in 14 databases, Google Scholar, and relevant websites. Articles were included if they focussed on pesticide self-harm and/or suicide and involvement of alcohol. RESULTS: Following screening of 1281 articles, 52 were included. Almost half were case reports (n = 24) and 16 focussed on Sri Lanka. Just over half described the acute impact of alcohol (n = 286), followed by acute and chronic alcohol use (n = 9), chronic use, (n = 4,) and only two articles addressed harm to others. One systematic review/meta-analysis showed increased risk of intubation and death in patients with co-ingested alcohol and pesticides. Most individuals who consumed alcohol before self-harming with pesticides were men, but alcohol use among this group also led to pesticide self-harm among family members. Individual interventions were recognised as reducing or moderating alcohol use, but no study discussed population-level alcohol interventions as a strategy for pesticide suicide and self-harm prevention. CONCLUSION: Research on alcohol's role in pesticide self-harm and suicide is limited. Future studies are needed to: further assess the toxicological effects of combined alcohol and pesticide ingestion, explore harm to others from alcohol including pesticide self-harm, and to integrate efforts to prevent harmful alcohol use and self-harm.

Differences in the characteristics of people who purchase pesticides from shops for self-harm versus those who use pesticides available in the domestic environment in Sri Lanka.

OBJECTIVE: Data from South Asia indicate that for 15%-20% of suicide attempts, pesticides are purchased from shops; otherwise, pesticides are obtained from an individual's house or nearby environment. We aimed to investigate the difference between individuals who directly purchase pesticides from shops for suicide attempts and suicide deaths versus those related to accessing the pesticides from an individual's house or nearby environment. METHODS: We conducted two comparative studies in rural Sri Lanka: (1) non-fatal shop cases (n = 50) were survivors of self-poisoning with pesticides who ingested the pesticides after purchasing them from a shop; non-fatal domestic cases (n = 192) were survivors who accessed pesticides from their house or nearby environment. (2) fatal shop cases (n = 50) were individuals who died after ingesting pesticides they purchased for the act; fatal domestic cases (n = 102) were patients who died after ingesting pesticides they accessed at house or nearby environment. Logistic regression analysis was used to assess the characteristics which distinguished between the shop and domestic cases. RESULTS: Data indicate that 20.7% and 32.9% of individuals who used pesticides for suicide attempts and suicide deaths had purchased them from shops, respectively. Being a non-farmer was the main distinguishing characteristic of shop cases: adjusted odds ratios (AOR) 8.9, 95% confidence intervals (CI) 3.2-24.4 for non-fatal shop cases, and AOR 4.0, 95% CI 1.5-10.6 for fatal shop cases. Non-fatal shop cases also had higher suicide intent (AOR 3.0, CI 1.0-8.9), and ingesting an insecticide (AOR 4.8, CI 1.8-1.0-8.9) than non-fatal domestic cases. CONCLUSION: A high suicide intent of individuals who purchase pesticides for the event explains the high proportion of such fatal cases. Such high suicide intent makes the prevention implications difficult to spell out for those individuals who purchase pesticides for self-poisoning. However, our findings are valuable for clinicians to assess pesticide poisoning cases in hospitals.

Gatekeeper training for vendors to reduce pesticide self-poisoning in rural South Asia: a study protocol for a stepped-wedge cluster randomised controlled trial.

INTRODUCTION: Pesticide self-poisoning kills an estimated 110 000-168 000 people worldwide annually. Data from South Asia indicate that in 15%-20% of attempted suicides and 30%-50% of completed suicides involving pesticides these are purchased shortly beforehand for this purpose. Individuals who are intoxicated with alcohol and/or non-farmers represent 72% of such customers. We have developed a 'gatekeeper' training programme for vendors to enable them to identify individuals at high risk of self-poisoning (gatekeeper function) and prevent such individuals from accessing pesticides (means restriction). The primary aim of the study is to evaluate the effectiveness of the gatekeeper intervention in preventing pesticide self-poisoning in Sri Lanka. Other aims are to identify method substitution and to assess the cost and cost-effectiveness of the intervention. METHODS AND ANALYSIS: A stepped-wedge cluster randomised trial of a gatekeeper intervention is being conducted in rural Sri Lanka with a population of approximately 2.7 million. The gatekeeper intervention is being introduced into 70 administrative divisions in random order at each of 30 steps over a 40-month period. The primary outcome is the number of pesticide self-poisoning cases identified from surveillance of hospitals and police stations. Secondary outcomes include: number of self-poisoning cases using pesticides purchased within the previous 24 hours, total number of all forms of self-harm and suicides. Intervention effectiveness will be estimated by comparing outcome measures between the pretraining and post-training periods across the divisions in the study area. The original study protocol has been adapted as necessary in light of the impact of the COVID-19. ETHICS AND DISSEMINATION: The Ethical Review Committee of the Faculty of Medicine and Allied Sciences, Rajarata University, Sri Lanka (ERC/2018/30), and the ACCORD Medical Research Ethics Committee, Edinburgh University (18-HV-053) approved the study. Results will be disseminated in scientific peer-reviewed journals. TRIAL REGISTRATION NUMBER: SLCTR/2019/006, U1111-1220-8046.

Risk factors for deliberate self-harm in young people in rural Sri Lanka: a prospective cohort study of 22,000 individuals.

Background: Over 90% of youth suicide deaths occur in low- and middle-income countries. Despite this relatively little is known about risk factors in this context. Aims: Investigate risk factors for deliberate self-harm (non-fatal) in young people in rural Sri Lanka. Methods: A prospective cohort study of 22,401 individuals aged 12-18 years with complete data on sex, student status, household asset score, household access to pesticides and household problematic alcohol use. Deliberate self-harm was measured prospectively by reviewing hospital records. Poisson regression estimated incidence rate ratios (IRRs) for the association of risk factors with deliberate self-harm. Results: Females were at higher risk of deliberate self-harm compared to males (IRR 2.05; 95%CI 1.75 - 2.40). Lower asset scores (low compared to high: IRR 1.46, 95%CI 1.12 - 2.00) and having left education (IRR 1.61 95%CI 1.31 - 1.98) were associated with higher risks of deliberate self-harm, with evidence that the effect of not being in school was more pronounced in males (IRR 1.94; 95%CI 1.40 - 2.70) than females. There was no evidence of an association between household pesticide access and deliberate self-harm risk, but problematic household alcohol use was associated with increased risk (IRR 1.23; 95%CI 1.04 - 1.45), with evidence that this was more pronounced in females than males (IRR for females 1.42; 95%CI 1.17 - 1.72). There was no evidence of deliberate self-harm risk being higher at times of school exam stress. Conclusion: Indicators of lower socioeconomic status, not being in school, and problematic alcohol use in households, were associated with increased deliberate self-harm risk in young people.

A Qualitative Analysis of Self-Harm and Suicide in Sri Lankan Printed Newspapers.

Background: Media reporting may influence suicidal behavior. In-depth exploration of how self-harm and suicide are portrayed in newspaper articles in a middle-income country such as Sri Lanka is lacking. Aims: We aimed to explore how self-harm and suicide are portrayed in Sri Lankan printed newspapers. Method: Seven English- and Sinhala-language Sri Lankan newspapers were screened for articles reporting on self-harm and suicide (December 1, 2014 to January 31, 2015). A thematic analysis was conducted. Results: In the 78 articles identified for analysis, certain aspects were overemphasized (inappropriate behavior) and others underemphasized (alcohol and complexities of self-harm). Explanations of self-harm were one-sided and a suicide prevention narrative was lacking. Limitations: Another time-frame and inclusion of Tamil newspapers as well as social media and online publications would provide additional understanding. Conclusion: The study found an indication of simplistic reporting. Greater focus on prevention and a nuanced portrayal of self-harm could reduce stigma and imitative behavior.

Using ex-ante economic evaluation to inform research priorities in pesticide self-poisoning prevention: the case of a shop-based gatekeeper training programme in rural Sri Lanka.

OBJECTIVES: Suicide by pesticide self-poisoning is a major public health challenge in low- and middle-income countries. While effectiveness studies are required to test alternative prevention approaches, economic evidence is lacking to inform decision-making in research priority setting. Therefore, this study aimed to estimate the costs of a shop-based gatekeeper training programme for pesticide vendors seeking to prevent pesticide self-poisoning in rural Sri Lanka and assess its potential for cost-effectiveness. METHODS: Ex-ante cost and cost-effectiveness threshold (CET) analyses were performed from a governmental perspective based on a three-year analytic horizon, using 'no programme' as a comparator. A programme model targeting all 535 pesticide shops in the North Central Province and border areas was applied. Total programme costs (TPC) were estimated in 2019 USD using an ingredients approach and 3% annual discounting. The Sri Lankan gross domestic product per capita and life years saved were used as CET and effectiveness measure, respectively. Sensitivity analyses were performed. RESULTS: TPC were estimated at 31 603.03 USD. TPC were sensitive to cost changes of training material and equipment and the programme lifetime. The programme needs to prevent an estimated 0.23 fatal pesticide self-poisoning cases over three years to be considered cost-effective. In the sensitivity analyses, the highest number of fatal cases needed to be prevented to obtain cost-effectiveness was 4.55 over three years. CONCLUSIONS: From an economic perspective, the programme has a very high potential to be cost-effective. Research assessing its effectiveness should therefore be completed, and research analysing its transferability to other settings prioritised.

OBJECTIFS: Le suicide par auto-intoxication par les pesticides est un défi majeur de santé publique dans les pays à revenu faible ou intermédiaire. Bien que des études d'efficacité soient nécessaires pour tester d'autres approches de prévention, les données économiques manquent pour informer la prise de décision dans les priorités de recherche. Par conséquent, cette étude visait à estimer les coûts d'un programme de formation des vendeurs dans les magasins de pesticides visant à prévenir l'auto-intoxication par les pesticides dans les régions rurales du Sri Lanka et à évaluer son potentiel de rentabilité. MÉTHODES: Les analyses ex-ante des coûts et des seuils de rentabilité (SR) ont été réalisées dans une perspective gouvernementale sur la base d'un horizon analytique de trois ans, en utilisant «l'absence de programme¼ comme comparateur. Un modèle de programme ciblant les 535 magasins de pesticides de la province du Centre-Nord et des zones frontalières a été appliqué. Les coûts totaux du programme (CTP) ont été estimés en USD 2019 en utilisant une approche d'ingrédients et une remise annuelle de 3%. Le produit intérieur brut sri-lankais par habitant et les années de vie sauvées ont été utilisés comme SR et mesure d'efficacité, respectivement. Des analyses de sensibilité ont été effectuées. RÉSULTATS: le CTP a été estimé à 31.603,03 USD. Le CTP était sensible aux changements de coût du matériel et de l'équipement de formation et de la durée de vie du programme. Le programme devrait prévenir environ 0,23 cas d'auto-intoxication mortelle par des pesticide sur trois ans pour être considéré comme rentable. Dans les analyses de sensibilité, le plus grand nombre de cas mortels à prévenir pour obtenir une rentabilité était de 4,55 sur trois ans. CONCLUSIONS: D'un point de vue économique, le programme a un potentiel très élevé pour être rentable. La recherche évaluant son efficacité doit donc être complétée et la recherche analysant sa transférabilité à d'autres contextes doit être priorisée.

The Rajarata Pregnancy Cohort (RaPCo): study protocol.

BACKGROUND: Ending preventable maternal deaths remains a global priority and in the later stages of obstetric transition, identifying the social determinants of maternal health outcomes is essential to address stagnating maternal mortality rates. Countries would hardly achieve the Sustainable Development Goal (SGD) targets on maternal health, unless the complex and context-specific socio-economic aetiologies associated with maternal mental health and suicide are identified. The Rajarata Pregnancy Cohort (RaPCo) is a prospective cohort study, designed to explore the interactions between social determinants and maternal mental health in determining pregnancy and new-born outcomes. METHODS: The study will recruit all eligible pregnant women in the maternal care programme of Anuradhapura district, Sri Lanka from July to September 2019. The estimated sample size is 2400. We will assess the socio-demographic and economic status, social capital, gender-based violence and mental health, including a clinical examination and biochemical investigations during the first trimester. Participants will undergo four follow-ups at 2nd and 3rd trimesters, at delivery and in early postpartum. The new-borns will be followed up at birth, neonatal period, at 6 six months and at 1 year. Pregnancy and child outcome data will be collected using direct contact. Qualitative studies will be carried out to understand the complex social factors and behavioural dimensions related to abortion, antenatal depression, maternal deaths and near misses. DISCUSSION: This is the first reported maternal cohort in Sri Lanka focusing on social determinants and mental health. As a country in stage four of obstetric transition, these findings will provide generalizable evidence on achieving SGD targets in low- and middle-income countries. The study will be conducted in a district with multi-cultural, multi-ethnic and diverse community characteristics; thus, will enable the evidence generated to be applied in many different contexts. The study also possesses the strength of using direct participant contact, data collection, measurement, examination and biochemical testing to minimise errors in routinely collected data. The RaPCo study will be able to generate evidence to strengthen policies to further reduce maternal deaths in the local, regional and global contexts particularly focusing on social factors and mental health, which are not optimally addressed in the global agenda.

Emerging pesticides responsible for suicide in rural Sri Lanka following the 2008-2014 pesticide bans.

BACKGROUND: Sri Lanka has reduced its overall suicide rate by 70% over the last two decades through means restriction, through a series of government regulations and bans removing highly hazardous pesticides from agriculture. We aimed to identify the key pesticide(s) now responsible for suicides in rural Sri Lanka to provide data for further pesticide regulation. METHODS: We performed a secondary analysis of data collected prospectively during a cluster randomized controlled trial in the Anuradhapura district of Sri Lanka from 2011 to 16. The identity of pesticides responsible for suicides were sought from medical or judicial medical notes, coroners' records, and the person's family. Trend analysis was done using a regression analysis with curve estimation to identify relative importance of key pesticides. RESULTS: We identified 337 suicidal deaths. Among them, the majority 193 (57.3%) were due to ingestion of pesticides while 82 (24.3%) were due to hanging. A specific pesticide was identified in 105 (54.4%) of the pesticide suicides. Ingestion of carbosulfan or profenofos was responsible for 59 (56.2%) of the suicides with a known pesticide and 17.5% of all suicides. The increasing trend of suicides due to carbosulfan and profenofos over time was statistically significant (R square 0.846, F 16.541, p 0.027). CONCLUSION: Ingestion of pesticides remains the most important means of suicides in rural Sri Lanka. The pesticides that were once responsible for most pesticide suicides have now been replaced by carbosulfan and profenofos. Their regulation and replacement in agriculture with less hazardous pesticides will further reduce the incidence of both pesticide and overall suicides in rural Sri Lanka.

Factors associated with purchasing pesticide from shops for intentional self-poisoning in Sri Lanka.

OBJECTIVE: In South Asia, up to one in five individuals who ingest pesticides for self-poisoning and survive purchased them from a shop immediately prior to the event. Thus far, no research has taken place to determine whether interventions implemented through the pesticide sellers might be acceptable or effective, despite the hundreds of thousands of such risk purchases each year. We aimed to investigate factors associated with purchasing pesticides for self-poisoning in Sri Lanka. METHODS: We used a case-control study. Cases (n = 50) were individuals who ingested pesticides after purchasing them for the act, and controls (n = 200) were customers who bought pesticides but did not use them for self-harm. Logistic regression analysis was used to assess socio-demographic and purchase-specific risk factors. RESULTS: Alcohol intoxication (adjusted odds ratios [AOR] 36.5, 95% confidence intervals [CI] 1.7-783.4) and being a non-farmer AOR 13.3, 95% CI 1.8-99.6 were the main distinguishing factors when purchasing pesticides for self-poisoning. The positive predictive values were 93.3% (95% CI 68.0-99.8%) and 88.2% (95% CI 72.5-96.7%), respectively. One and/or other of these factors characterised 72.0% of cases but only 2.5% controls. CONCLUSION: While results need to be interpreted cautiously, sales restrictions to prevent alcohol-intoxicated persons and non-farmers purchasing pesticides for self-poisoning may be effective.

OBJECTIF: En Asie du Sud, jusqu'à une personne sur cinq qui ingère des pesticides pour s'auto­intoxiquer et survi les a achetés dans un magasin immédiatement avant l'événement. Jusqu'à présent, aucune recherche n'a eu lieu pour déterminer si les interventions mises en œuvre chez les vendeurs de pesticides pourraient être acceptables ou efficaces, malgré les centaines de milliers d'achats à risque chaque année. Nous visions à étudier les facteurs associés à l'achat de pesticides pour l'auto­intoxication au Sri Lanka. MÉTHODES: Nous avons utilisé une étude cas­témoins. Les cas (n = 50) étaient des personnes qui avaient ingéré des pesticides après les avoir achetés pour l'acte et les témoins (n = 200) étaient des clients qui achetaient des pesticides mais ne les utilisaient pas pour se faire du mal. Une analyse de régression logistique a été utilisée pour évaluer les facteurs de risque sociodémographiques et spécifiques à l'achat. RÉSULTATS: L'intoxication alcoolique (rapport de cotes ajusté [AOR] 36,5, intervalles de confiance à 95% [IC] 1,7­783,4) et étant un non­agriculteur AOR 13,3 ; IC95%: 1,8­99,6 étaient les principaux facteurs distinctifs lors de l'achat de pesticides pour l'auto­intoxication. Les valeurs prédictives positives étaient respectivement de 93,3% (IC95%: 68,0% ­99,8%) et 88,2% (IC95%: 72,5% ­96,7%). L'un et/ou l'autre de ces facteurs caractérisaient 72,0% des cas mais seulement 2,5% des témoins. CONCLUSION: Bien que les résultats doivent être interprétés avec prudence, des restrictions de vente visant à empêcher les personnes intoxiquées à l'alcool et les non­agriculteurs d'acheter des pesticides pour l'auto­intoxication peuvent être efficaces.

Estimating the government health-care costs of treating pesticide poisoned and pesticide self-poisoned patients in Sri Lanka.

Background: Pesticide self-poisoning as a method of suicide is a major global health problem.Objectives: To estimate the cost and per patient cost of treating pesticide self-poisoning at different hospital levels in a Sri Lankan district, and to examine the distribution of cost components. Another objective was to investigate changes in total cost of treatment of pesticide poisoning for all causes at different administrative levels in Sri Lanka in 2005 and 2015.Methods: The economic framework was a costing analysis, adopting a government perspective. Cost data were collected prospectively over a 4-month period in 2016 for patients admitted for pesticide self-poisoning to six hospitals in the Anuradhapura District. Assumption-based scenario analyses were run to determine changes in total pesticide poisoning treatment costs.Results: We included 67 self-poisoned patients in the study. The total cost of treatment was US$ 5,714 at an average treatment cost of US$ 85.3 (9.7-286.6) per patient (across all hospital levels). Hospital costs constituted 67% of the total cost for treating self-poisoning cases and patient-specific costs accounted for 29%. Direct cost of patient hospital transfer constituted the smallest share of costs (4%) but accounted for almost half of the total costs at primary level. The estimated total cost of treating all causes of pesticide poisoning in Sri Lanka was US$ 2.5 million or 0.19% of the total government health expenditure (GHE) in 2015.Conclusion: Our findings indicate that the average per patient cost of pesticide self-poisoning treatment has increased while the total cost of pesticide poisoning treatment as a percentage of the total GHE in Sri Lanka has declined over the past decade. A continuous focus on banning the most hazardous pesticides available would likely further drive down the cost of pesticide self-poisoning and pesticide poisoning to the government.

Self-Harm and Suicide Coverage in Sri Lankan Newspapers.

BACKGROUND: Irresponsible media reporting may influence suicidal behavior. Adherence to guidelines for responsible reporting of suicide has not been examined in Sri Lanka in recent times. AIMS: To examine the quality of reporting on self-harm and suicide in Sri Lankan newspapers and compare the quality between Sinhala and English newspapers. METHOD: From December 1, 2014 to January 31, 2015, 407 editions of newspapers were screened. Reporting quality was measured using the PRINTQUAL tool. RESULTS: We identified 68 articles covering an episode of self-harm or suicide (42 Sinhala and 26 English). The majority of articles were noncompliant with guidelines for sensitive reporting. Indicators of noncompliance included that newspaper articles frequently reported method in the headline (53%), included detailed characteristics of the individual (100%), used insensitive language (58% of English articles), and attributed a single-factor cause to the self-harm (52%). No information about help-seeking was included. LIMITATIONS: The study involved a relatively short period of data collection. Including social media, Tamil language newspapers, and online publications would have provided additional understanding of reporting practices. CONCLUSION: The majority of Sri Lankan newspapers did not follow the principles of good reporting, indicating a need for further training of journalists.

Potential Interventions for Preventing Pesticide Self-Poisoning by Restricting Access Through Vendors in Sri Lanka.

BACKGROUND: In South Asia, up to one in five individuals who use pesticides for self-harm purchase them immediately prior to the event. AIMS: From reviewing the literature we proposed four interventions: (a) farmer identification cards (ID); (b) prescriptions; (c) cooling-off periods; and (d) training pesticide vendors. We aimed to identify the most promising intervention. METHOD: The study was conducted in Sri Lanka. We mapped stakeholders' interest and power in relation to each intervention, and followed this by a ranking exercise. Seven focus group discussions (FGDs) were conducted to assess facilitators and barriers to implementation. RESULTS: Vendor training was the most supported intervention, being ranked first by the stakeholders. The participants in the FGDs strongly supported training of vendors as it was seen to be easy to implement and was considered more convenient. Farmer IDs, prescriptions, and cooling-off periods were thought to have more barriers than facilitators and they were strongly opposed by end users (farmers and vendors), who would potentially block their implementation. LIMITATIONS: Cost considerations for implementing the proposed intervention were not considered. CONCLUSION: Training vendors might be the most appropriate intervention to restrict sales of pesticides to people at risk of suicidal behavior. This requires field testing.

Vendor-based restrictions on pesticide sales to prevent pesticide self-poisoning - a pilot study.

BACKGROUND: In South Asia, up to 20% of people ingesting pesticides for self-poisoning purchase the pesticide from a shop with the sole intention of self-harm. Individuals who are intoxicated with alcohol and/or non-farmers represent 72% of such high-risk individuals. We aimed to test the feasibility and acceptability of vendor-based restrictions on pesticide sales for such high-risk individuals. METHODS: We conducted a pilot study in 14 (rural = 7, urban = 7) pesticide shops in Anuradhapura District of Sri Lanka. A two-hour training program was delivered to 28 pesticide vendors; the aim of the training was to help vendors recognize and respond to customers at high risk of pesticide self-poisoning. Knowledge and attitudes of vendors towards preventing access to pesticides for self-poisoning at baseline and in a three month follow-up was evaluated by questionnaire. Vendors were interviewed to explore the practice skills taught in the training and their assessment of the program. RESULTS: The scores of knowledge and attitudes of the vendors significantly increased by 23% (95% CI 15%-32%, p < 0.001) and by 16% (95% CI 9%-23%, p < 0.001) respectively in the follow-up. Fifteen (60%) vendors reported refusing sell pesticides to a high-risk person (non-farmer or intoxicated person) in the follow-up compared to three (12%) at baseline. Vendors reported that they were aware from community feedback that they had prevented at least seven suicide attempts. On four identified occasions, vendors in urban shops had been unable to recognize the self-harming intention of customers who then ingested the pesticide. Only 2 (8%) vendors were dissatisfied with the training and 23 (92%) said they would recommend it to other vendors. CONCLUSIONS: Our study suggests that vendor-based sales restriction in regions with high rates of self-poisoning has the potential to reduce access to pesticides for self-poisoning. A large-scale study of the effectiveness and sustainability of this approach is needed.

Effectiveness of household lockable pesticide storage to reduce pesticide self-poisoning in rural Asia: a community-based, cluster-randomised controlled trial.

BACKGROUND: Agricultural pesticide self-poisoning is a major public health problem in rural Asia. The use of safer household pesticide storage has been promoted to prevent deaths, but there is no evidence of effectiveness. We aimed to test the effectiveness of lockable household containers for prevention of pesticide self-poisoning. METHODS: We did a community-based, cluster-randomised controlled trial in a rural area of North Central Province, Sri Lanka. Clusters of households were randomly assigned (1:1), with a sequence computer-generated by a minimisation process, to intervention or usual practice (control) groups. Intervention households that had farmed or had used or stored pesticide in the preceding agricultural season were given a lockable storage container. Further promotion of use of the containers was restricted to community posters and 6-monthly reminders during routine community meetings. The primary outcome was incidence of pesticide self-poisoning in people aged 14 years or older during 3 years of follow-up. Identification of outcome events was done by staff who were unaware of group allocation. Analysis was by intention to treat. This trial is registered with ClinicalTrials.gov, number NCT1146496. FINDINGS: Between Dec 31, 2010, and Feb 2, 2013, we randomly assigned 90 rural villages to the intervention group and 90 to the control group. 27 091 households (114 168 individuals) in the intervention group and 26 291 households (109 693 individuals) in the control group consented to participate. 20 457 household pesticide storage containers were distributed. In individuals aged 14 years or older, 611 cases of pesticide self-poisoning had occurred by 3 years in the intervention group compared with 641 cases in the control group; incidence of pesticide self-poisoning did not differ between groups (293·3 per 100 000 person-years of follow-up in the intervention group vs 318·0 per 100 000 in the control group; rate ratio [RR] 0·93, 95% CI 0·80-1·08; p=0·33). We found no evidence of switching from pesticide self-poisoning to other forms of self-harm, with no significant difference in the number of fatal (82 in the intervention group vs 67 in the control group; RR 1·22, 0·88-1·68]) or non-fatal (1135 vs 1153; RR 0·97, 0·86-1·08) self-harm events involving all methods. INTERPRETATION: We found no evidence that means reduction through improved household pesticide storage reduces pesticide self-poisoning. Other approaches, particularly removal of highly hazardous pesticides from agricultural practice, are likely to be more effective for suicide prevention in rural Asia. FUNDING: Wellcome Trust, with additional support from the American Foundation for Suicide Prevention, Lister Institute of Preventive Medicine, Chief Scientist Office of Scotland, University of Copenhagen, and NHMRC Australia.

Utilization of Boxes for Pesticide Storage in Sri Lanka.

Pesticide self-poisoning is now considered one of the two most common methods of suicide worldwide. Encouraging safe storage of pesticides is one particular approach aimed at reducing pesticide self-poisoning. CropLife Sri Lanka (the local association of pesticide manufacturers), with the aid of the Department of Agriculture, distributed lockable in-house pesticide storage boxes free of charge to a farming community in a rural district of Sri Lanka. Padlocks were not provided with the boxes. These storage boxes were distributed to the farmers without prior education. The authors carried out a cross-sectional follow-up survey to assess the usage of boxes at 7 months after distribution. In an inspection of a sample of 239 box recipients' households, 142 households stored pesticides in the provided box at the time of survey. Among them, only 42 (42/142, 29.65%) households had locked the box; the remaining households (100/142, 70.4%) had not locked the box. A simple hand over of in-house pesticide storage boxes without awareness/education results in poor use of boxes. Additionally, providing in-house storage boxes may encourage farmers to store pesticides in and around houses and, if they are not locked, may lead to unplanned adverse effects.

Overdose of oral contraceptive pills as a means of intentional self-poisoning amongst young women in Sri Lanka: considerations for family planning.

OBJECTIVE: Oral contraceptive pills (OCPs) are one of the most popular family planning methods in Sri Lanka. As part of two hospital-based studies on self-harm, the use of OCPs was identified, from yet unpublished results, as a means of intentional self-poisoning. To inform future guidelines for better OCP promotion, this article aims to describe the extent, patient characteristics and outcomes of OCP self-poisoning in the North Central Province of Sri Lanka. METHODS: A secondary analysis was carried out on two hospital-based self-harm case series, from January 2011 to June 2014. RESULTS: Fifty-four patients (52 women and two men) with an overdose of OCP as a means of intentional self-poisoning were admitted to one of the surveyed hospitals. The median age of the patients was 19 (interquartile range, 5) years. None of the patients were severely sick from their overdose and two-thirds of the patients were discharged within a day of admission. Intentional self-poisoning with OCPs represented less than 5% of all types of intentional medicine self-poisonings recorded at the hospitals. Information available for a subset of female patients indicates that many cases (13/23, 56.5%) were in their first year of marriage. CONCLUSIONS: More research is required to understand why young women in rural Sri Lanka overdose with OCPs as a means of intentional self-poisoning. Although the toxicity of OCPs is low and the public health significance of OCP poisoning remains minor, reproductive health service providers should be attentive to OCP overdose, monitor the development of this problem, and ensure appropriate information to OCP users.

Risk factors associated with purchasing pesticide from shops for self-poisoning: a protocol for a population-based case-control study.

INTRODUCTION: Pesticide self-poisoning is one of the most frequently used methods of suicide worldwide, killing over 300,000 people annually. Around 15-20% of pesticide self-poisonings occur soon after the person has bought the pesticide from a shop. We aim to determine the characteristics of individuals who purchase pesticides directly from shops and how they differ from individuals who access pesticides from other sources such as home, home garden or farmland. This information will help inform possible vendor/shop-based intervention strategies aimed at reducing access to pesticides used for self-harm. METHODS AND ANALYSIS: This study will investigate risk factors associated with purchasing pesticides for acts of self-poisoning from pesticide shops, including cases identified over a 9-month period using a population-based case-control group approach. Four interviewer-administered data collection tools will be used for this study: a semistructured questionnaire, Beck Suicidal Intent Scale (SIS), Clinical Interview Schedule-Sinhalese version (CIS-Sn) and Alcohol Use Disorders Identification Test (AUDIT). Each case (expected n=33) will be compared with two groups of individuals: (1) those who have self-poisoned using pesticides from the home, home garden or farmland and (2) those who bought pesticides from the same shops as the above cases, but not did not self-poison. Logistic regression models will be used to identify risk factors of purchasing pesticides for self-poisoning from shops. ETHICS AND DISSEMINATION: The study has received ethical approval from the Ethical Review Committee of the Faculty of Medicine and Allied Sciences, Rajarata University of Sri Lanka. A sensitive data collection technique will be used and ethical issues will be considered throughout the study. Results will be disseminated in scientific peer-reviewed articles.

Challenges and opportunities of a paperless baseline survey in Sri Lanka.

BACKGROUND: Personal digital assistants (PDAs) have been shown to reduce costs associated with survey implementation and digitisation, and to improve data quality when compared to traditional paper based data collection. Few studies, however, have shared their experiences of the use of these devices in rural settings in Asia. This paper reports on our experiences of using a PDA device for data collection in Sri Lanka as part of a large cluster randomised control trial. FINDINGS: We found that PDAs were useful for collecting data for a baseline survey of a large randomised control trial (54,000 households). We found that the PDA device and survey format was easy to use by inexperienced field staff, even though the survey was programmed in English. The device enabled the rapid digitisation of survey data, providing a good basis for continuous data quality assurance, supervision of staff and survey implementation. An unexpected advantage was the improved community opinion of the research project as a result of the device, because the use of the technology gave data collectors an elevated status amongst the community. In addition the global positioning system (GPS) functionality of the device allowed precise mapping of households, and hence distinct settlements to be identified as randomisation clusters. Future users should be mindful that to save costs the piloting should be completed before programming. In addition consideration of a local after-care service is important to avoid costs and time delays associated with sending devices back to overseas providers. DISCUSSION: Since the start of this study, PDA devices have rapidly developed and are increasingly used. The use of PDA or similar devices for research is not without its problems; however we believe that the universal lessons learnt as part of this study are even more important for the effective utilisation of these rapidly developing technologies in resource poor settings.

The role of private pesticide vendors in preventing access to pesticides for self-poisoning in rural Sri Lanka.

In 15% to 20% of self-poisoning cases, the pesticides used are purchased from shops just prior to ingestion. We explored how pesticide vendors interacted with customers at risk of self-poisoning to identify interventions to prevent such poisonings. Two strategies were specifically discussed: selling pesticides only to farmers bearing identity cards or customers bearing pesticide 'prescriptions'. Vendors reported refusing to sell pesticides to people thought to be at risk of self-poisoning, but acknowledged the difficulty of distinguishing them from legitimate customers; vendors also stated they did want to help to improve identification of such customers. The community did not blame vendors when pesticides used for self-poison were purchased from their shops. Vendors have already taken steps to restrict access, including selling low toxic products, counselling and asking customer to return the next day. However, there was little support for the proposed interventions of 'identity cards' and 'prescriptions'. Novel public health approaches are required to complement this approach.