Suicide prevention through means restriction: Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka

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Suicide prevention through means restriction : Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka. / Knipe, Duleeka W.; Chang, Shu-Sen; Dawson, Andrew; Eddleston, Michael; Konradsen, Flemming; Metcalfe, Chris; Gunnell, David.

I: PLOS ONE, Bind 12, Nr. 3, e0172893, 06.03.2017, s. 1-12.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Knipe, DW, Chang, S-S, Dawson, A, Eddleston, M, Konradsen, F, Metcalfe, C & Gunnell, D 2017, 'Suicide prevention through means restriction: Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka', PLOS ONE, bind 12, nr. 3, e0172893, s. 1-12. https://doi.org/10.1371/journal.pone.0172893

APA

Knipe, D. W., Chang, S-S., Dawson, A., Eddleston, M., Konradsen, F., Metcalfe, C., & Gunnell, D. (2017). Suicide prevention through means restriction: Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka. PLOS ONE, 12(3), 1-12. [e0172893]. https://doi.org/10.1371/journal.pone.0172893

Vancouver

Knipe DW, Chang S-S, Dawson A, Eddleston M, Konradsen F, Metcalfe C o.a. Suicide prevention through means restriction: Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka. PLOS ONE. 2017 mar 6;12(3):1-12. e0172893. https://doi.org/10.1371/journal.pone.0172893

Author

Knipe, Duleeka W. ; Chang, Shu-Sen ; Dawson, Andrew ; Eddleston, Michael ; Konradsen, Flemming ; Metcalfe, Chris ; Gunnell, David. / Suicide prevention through means restriction : Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka. I: PLOS ONE. 2017 ; Bind 12, Nr. 3. s. 1-12.

Bibtex

@article{e4f3add086ab4d0f8fa65c98292d1fb8,
title = "Suicide prevention through means restriction: Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka",
abstract = "Objective: To investigate the effect of 3-year phased bans of the pesticides dimethoate and fenthion in 2008–2010, and paraquat in 2009–2011, on suicide mortality in Sri Lanka.Methods:Age-standardised overall, sex-specific, and method-specific suicide rates were calculated using Sri Lankan police data (1989–2015). Using negative binomial regression models, we estimated the change in the rate and number of suicide deaths in post-ban years (2011–15) compared to those expected based on pre-ban trends (2001–10).Findings:Overall suicide mortality dropped by 21% between 2011 and 2015, from 18.3 to 14.3 per 100,000. The decline in pesticide suicides during this same period was larger than for overall suicides: from 8.5 to 4.2 per 100,000, a 50% reduction. This was accompanied by a smaller concurrent rise in non-pesticide suicide mortality with a 2% increase (9.9 to 10.1 per 100,000). In 2015, the ratio between the observed and expected pesticide suicide rates was 0.49 (95% confidence interval [CI] 0.40, 0.62), corresponding to an estimated 937 (95% CI 574, 1389) fewer pesticide suicides than expected from pre-ban suicide rates. Findings were similar in sensitivity analyses using 2008 or 2012 as commencement of the post intervention period.Conclusion:Bans of paraquat, dimethoate and fenthion in Sri Lanka were associated with a reduction in pesticide suicide mortality and in overall suicide mortality despite a small rise in other methods. This study provides further evidence for the effectiveness of pesticide regulation in limiting the availability of highly hazardous pesticides and thereby reducing the number of global suicides.",
author = "Knipe, {Duleeka W.} and Shu-Sen Chang and Andrew Dawson and Michael Eddleston and Flemming Konradsen and Chris Metcalfe and David Gunnell",
year = "2017",
month = mar,
day = "6",
doi = "10.1371/journal.pone.0172893",
language = "English",
volume = "12",
pages = "1--12",
journal = "P L o S One",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "3",

}

RIS

TY - JOUR

T1 - Suicide prevention through means restriction

T2 - Impact of the 2008-2011 pesticide restrictions on suicide in Sri Lanka

AU - Knipe, Duleeka W.

AU - Chang, Shu-Sen

AU - Dawson, Andrew

AU - Eddleston, Michael

AU - Konradsen, Flemming

AU - Metcalfe, Chris

AU - Gunnell, David

PY - 2017/3/6

Y1 - 2017/3/6

N2 - Objective: To investigate the effect of 3-year phased bans of the pesticides dimethoate and fenthion in 2008–2010, and paraquat in 2009–2011, on suicide mortality in Sri Lanka.Methods:Age-standardised overall, sex-specific, and method-specific suicide rates were calculated using Sri Lankan police data (1989–2015). Using negative binomial regression models, we estimated the change in the rate and number of suicide deaths in post-ban years (2011–15) compared to those expected based on pre-ban trends (2001–10).Findings:Overall suicide mortality dropped by 21% between 2011 and 2015, from 18.3 to 14.3 per 100,000. The decline in pesticide suicides during this same period was larger than for overall suicides: from 8.5 to 4.2 per 100,000, a 50% reduction. This was accompanied by a smaller concurrent rise in non-pesticide suicide mortality with a 2% increase (9.9 to 10.1 per 100,000). In 2015, the ratio between the observed and expected pesticide suicide rates was 0.49 (95% confidence interval [CI] 0.40, 0.62), corresponding to an estimated 937 (95% CI 574, 1389) fewer pesticide suicides than expected from pre-ban suicide rates. Findings were similar in sensitivity analyses using 2008 or 2012 as commencement of the post intervention period.Conclusion:Bans of paraquat, dimethoate and fenthion in Sri Lanka were associated with a reduction in pesticide suicide mortality and in overall suicide mortality despite a small rise in other methods. This study provides further evidence for the effectiveness of pesticide regulation in limiting the availability of highly hazardous pesticides and thereby reducing the number of global suicides.

AB - Objective: To investigate the effect of 3-year phased bans of the pesticides dimethoate and fenthion in 2008–2010, and paraquat in 2009–2011, on suicide mortality in Sri Lanka.Methods:Age-standardised overall, sex-specific, and method-specific suicide rates were calculated using Sri Lankan police data (1989–2015). Using negative binomial regression models, we estimated the change in the rate and number of suicide deaths in post-ban years (2011–15) compared to those expected based on pre-ban trends (2001–10).Findings:Overall suicide mortality dropped by 21% between 2011 and 2015, from 18.3 to 14.3 per 100,000. The decline in pesticide suicides during this same period was larger than for overall suicides: from 8.5 to 4.2 per 100,000, a 50% reduction. This was accompanied by a smaller concurrent rise in non-pesticide suicide mortality with a 2% increase (9.9 to 10.1 per 100,000). In 2015, the ratio between the observed and expected pesticide suicide rates was 0.49 (95% confidence interval [CI] 0.40, 0.62), corresponding to an estimated 937 (95% CI 574, 1389) fewer pesticide suicides than expected from pre-ban suicide rates. Findings were similar in sensitivity analyses using 2008 or 2012 as commencement of the post intervention period.Conclusion:Bans of paraquat, dimethoate and fenthion in Sri Lanka were associated with a reduction in pesticide suicide mortality and in overall suicide mortality despite a small rise in other methods. This study provides further evidence for the effectiveness of pesticide regulation in limiting the availability of highly hazardous pesticides and thereby reducing the number of global suicides.

U2 - 10.1371/journal.pone.0172893

DO - 10.1371/journal.pone.0172893

M3 - Journal article

C2 - 28264041

VL - 12

SP - 1

EP - 12

JO - P L o S One

JF - P L o S One

SN - 1932-6203

IS - 3

M1 - e0172893

ER -

ID: 174471225