Skip to main content
Top
Published in: Health and Quality of Life Outcomes 1/2020

Open Access 01-12-2020 | Intoxication | Research

Health-related quality of life (EQ-5D + C) among people living in artisanal and small-scale gold mining areas in Zimbabwe: a cross-sectional study

Authors: Friederike-Marie Butscher, Stefan Rakete, Myriam Tobollik, Viola Mambrey, Dingani Moyo, Dennis Shoko, Shamiso Muteti-Fana, Nadine Steckling-Muschack, Stephan Bose-O’Reilly

Published in: Health and Quality of Life Outcomes | Issue 1/2020

Login to get access

Abstract

Background

In Zimbabwe, an estimated 500,000 people work in the sector of artisanal and small-scale gold mining (ASGM). Two million Zimbabweans are dependent on this sector. Using mercury is common to extract gold from ore. Long term exposure to mercury can cause various adverse health conditions including chronic mercury intoxication. The influence of these adverse health effects on the health-related quality of life (HRQoL) is still unknown. The aim of this study is to assess the HRQoL of people who identify themselves as miners, and to analyze potential influencing factors, such as age, years of working with mercury and health conditions caused by mercury exposure.

Methods

This cross-sectional study assessed the HRQoL using the standardized EQ-5D + C (3 L) questionnaire and collected human specimens (blood, urine) of people living and possibly working in ASGM areas in Zimbabwe. Factors such as age, years of working with mercury and adverse health conditions possibly caused by mercury exposure were analyzed with regards to their influence on the HRQoL.

Results

The 207 participants (82% male, mean age 38 years) reported 40 different health states. Of the study participants 42.5% reported to be in complete good health while 57.5% reported being unwell in different ways. Nine participants (4.3%) were identified with chronic mercury intoxication, whereas 92 participants (33.3%) had mercury levels above the “Alert” threshold in at least one specimen. Having chronic mercury intoxication has a significant negative influence on the HRQoL, when taking into account age, gender and years of working with mercury. Cognitive problems were the most reported in the questionnaire, however, the association between this domain separately and the HRQoL was not verified.

Conclusion

This study shows that adverse health effects caused by chronic exposure to mercury, have a negative influence on the HRQoL among people living in ASGM areas.
Appendix
Available only for authorised users
Literature
2.
go back to reference World Health Organisation. Mercury Exposure and Health Impacts among Individuals in the Artisanal and Small-Scale Gold Mining (ASGM) Community. Public Health and Environment, World Health Organization, Geneva, Switzerland. 2013. World Health Organisation. Mercury Exposure and Health Impacts among Individuals in the Artisanal and Small-Scale Gold Mining (ASGM) Community. Public Health and Environment, World Health Organization, Geneva, Switzerland. 2013.
5.
go back to reference Bose-O'Reilly S, Drasch G, Beinhoff C, Tesha A, Drasch K, Roider G, et al. Health assessment of artisanal gold miners in Tanzania. Sci Total Environ. 2010;408(4):796–805.PubMed Bose-O'Reilly S, Drasch G, Beinhoff C, Tesha A, Drasch K, Roider G, et al. Health assessment of artisanal gold miners in Tanzania. Sci Total Environ. 2010;408(4):796–805.PubMed
6.
go back to reference Bose-O'Reilly S, Drasch G, Beinhoff C, Rodrigues-Filho S, Roider G, Lettmeier B, et al. Health assessment of artisanal gold miners in Indonesia. Sci Total Environ. 2010;408(4):713–25.PubMed Bose-O'Reilly S, Drasch G, Beinhoff C, Rodrigues-Filho S, Roider G, Lettmeier B, et al. Health assessment of artisanal gold miners in Indonesia. Sci Total Environ. 2010;408(4):713–25.PubMed
10.
go back to reference United Nations Environment Programme. Global Mercury Assessment 2013: Sources, emissions, releases and environmental transport 2013. United Nations Environment Programme. Global Mercury Assessment 2013: Sources, emissions, releases and environmental transport 2013.
11.
go back to reference United Nations Environment Programme. Reducing mercury use in artisanal and small-scale gold mining: a practical guide; final technical report-output. 2012. United Nations Environment Programme. Reducing mercury use in artisanal and small-scale gold mining: a practical guide; final technical report-output. 2012.
12.
go back to reference Seccatore J, Veiga M, Origliasso C, Marin T, De Tomi G. An estimation of the artisanal small-scale production of gold in the world. Sci Total Environ. 2014;496:662–7.PubMed Seccatore J, Veiga M, Origliasso C, Marin T, De Tomi G. An estimation of the artisanal small-scale production of gold in the world. Sci Total Environ. 2014;496:662–7.PubMed
13.
go back to reference Hentschel T, Hruschka F, Priester M. Global report on artisanal and small-scale mining. Report commissioned by the Mining, Minerals and Sustainable Development of the International Institute for Environment and Development. 2002;20(08):2008. Download from https://pubs.iied.org/pdfs/G00723.pdf. Accessed 13 Aug 2020. Hentschel T, Hruschka F, Priester M. Global report on artisanal and small-scale mining. Report commissioned by the Mining, Minerals and Sustainable Development of the International Institute for Environment and Development. 2002;20(08):2008. Download from https://​pubs.​iied.​org/​pdfs/​G00723.​pdf. Accessed 13 Aug 2020.
14.
go back to reference United Nations Industrial Development Organisation. Follow the money: A rapid assessment of gold supply chains and financial flows linked to artisanal and small-scale gold mining in Zimbabwe. 2018. United Nations Industrial Development Organisation. Follow the money: A rapid assessment of gold supply chains and financial flows linked to artisanal and small-scale gold mining in Zimbabwe. 2018.
15.
go back to reference Steckling N, Tobollik M, Plass D, Hornberg C, Ericson B, Fuller R, et al. Global burden of disease of mercury used in artisanal small-scale gold mining. Ann Glob Health. 2017;83(2):234–47.PubMed Steckling N, Tobollik M, Plass D, Hornberg C, Ericson B, Fuller R, et al. Global burden of disease of mercury used in artisanal small-scale gold mining. Ann Glob Health. 2017;83(2):234–47.PubMed
16.
go back to reference Buxton A. Responding to the challenge of artisanal and small-scale mining. In: How can knowledge networks help; 2013. Buxton A. Responding to the challenge of artisanal and small-scale mining. In: How can knowledge networks help; 2013.
18.
go back to reference Amponsah-Tawiah K, Leka S, Jain A, Hollis D, Cox T. The impact of physical and psychosocial risks on employee well-being and quality of life: the case of the mining industry in Ghana. Saf Sci. 2014;65:28–35. Amponsah-Tawiah K, Leka S, Jain A, Hollis D, Cox T. The impact of physical and psychosocial risks on employee well-being and quality of life: the case of the mining industry in Ghana. Saf Sci. 2014;65:28–35.
19.
go back to reference Guyatt GH, Feeny DH, Patrick DL. Measuring health-related quality of life. Ann Intern Med. 1993;118(8):622–9.PubMed Guyatt GH, Feeny DH, Patrick DL. Measuring health-related quality of life. Ann Intern Med. 1993;118(8):622–9.PubMed
20.
go back to reference Clancy CM, Eisenberg JM. Outcomes research: measuring the end results of health care: American Association for the Advancement of Science. Science 1998;282(5387):245–6. Clancy CM, Eisenberg JM. Outcomes research: measuring the end results of health care: American Association for the Advancement of Science. Science 1998;282(5387):245–6.
21.
go back to reference Becker J, Bose-O’Reilly S, Shoko D, Singo J, Steckling N. Comparing the self-reported health-related quality of life (HRQoL) of artisanal small-scale gold miners and the urban population in Zimbabwe using the EuroQol (EQ-5D-3L+C) questionnaire: a cross-sectional study; 2020. Becker J, Bose-O’Reilly S, Shoko D, Singo J, Steckling N. Comparing the self-reported health-related quality of life (HRQoL) of artisanal small-scale gold miners and the urban population in Zimbabwe using the EuroQol (EQ-5D-3L+C) questionnaire: a cross-sectional study; 2020.
22.
go back to reference Steckling N, Plass D, Bose-O’Reilly S, Kobal AB, Krämer A, Hornberg C. Disease profile and health-related quality of life (HRQoL) using the EuroQol (EQ-5D+ C) questionnaire for chronic metallic mercury vapor intoxication. Health Qual Life Outcomes. 2015;13(1):196.PubMedPubMedCentral Steckling N, Plass D, Bose-O’Reilly S, Kobal AB, Krämer A, Hornberg C. Disease profile and health-related quality of life (HRQoL) using the EuroQol (EQ-5D+ C) questionnaire for chronic metallic mercury vapor intoxication. Health Qual Life Outcomes. 2015;13(1):196.PubMedPubMedCentral
23.
go back to reference Mudzwiti P, Mukwakwami N, Mungoni M. Madzivaidze I. a Golden opportunity: scoping study of artisanal and small scale mining in Zimbabwe. Harare: Pact; 2015. Mudzwiti P, Mukwakwami N, Mungoni M. Madzivaidze I. a Golden opportunity: scoping study of artisanal and small scale mining in Zimbabwe. Harare: Pact; 2015.
24.
go back to reference Bose-O’Reilly S, Dahlmann F, Lettmeier B, Drasch G. Removal of barriers to the introduction of cleaner artisanal gold mining and extraction Technologies in Kadoma, Zimbabwe—final report, part B: health assessment. UNIDO project EG. Orleans: Bureau de Recherches Geologiques et Minieres; 2004. Bose-O’Reilly S, Dahlmann F, Lettmeier B, Drasch G. Removal of barriers to the introduction of cleaner artisanal gold mining and extraction Technologies in Kadoma, Zimbabwe—final report, part B: health assessment. UNIDO project EG. Orleans: Bureau de Recherches Geologiques et Minieres; 2004.
26.
go back to reference Mtetwa C, Shava S. A sociological survey of small-scale artisanal gold mining in the kadoma-chakari area. Vienna: United Nations Industiral Development Organization; 2003. Mtetwa C, Shava S. A sociological survey of small-scale artisanal gold mining in the kadoma-chakari area. Vienna: United Nations Industiral Development Organization; 2003.
27.
go back to reference World Health Organization. Guidance for identifying populations at risk from mercury exposure. Geneva: WHO; 2008. World Health Organization. Guidance for identifying populations at risk from mercury exposure. Geneva: WHO; 2008.
28.
go back to reference Doering S, Bose-O’Reilly S, Berger U. Essential indicators identifying chronic inorganic mercury intoxication: pooled analysis across multiple cross-sectional studies. PLoS One. 2016;11(8):e0160323.PubMedPubMedCentral Doering S, Bose-O’Reilly S, Berger U. Essential indicators identifying chronic inorganic mercury intoxication: pooled analysis across multiple cross-sectional studies. PLoS One. 2016;11(8):e0160323.PubMedPubMedCentral
29.
go back to reference Drasch G, Böse-O'Reilly S, Beinhoff C, Roider G, Maydl S. The Mt. Diwata study on the Philippines 1999—assessing mercury intoxication of the population by small scale gold mining. Sci Total Environ. 2001;267(1–3):151–68.PubMed Drasch G, Böse-O'Reilly S, Beinhoff C, Roider G, Maydl S. The Mt. Diwata study on the Philippines 1999—assessing mercury intoxication of the population by small scale gold mining. Sci Total Environ. 2001;267(1–3):151–68.PubMed
30.
go back to reference Rabin R. Charro Fd. EQ-5D: a measure of health status from the EuroQol group. Ann Med. 2001;33(5):337–43.PubMed Rabin R. Charro Fd. EQ-5D: a measure of health status from the EuroQol group. Ann Med. 2001;33(5):337–43.PubMed
31.
go back to reference EuroQol Research Foundation. EQ-5D-3L User Guide. 2018. EuroQol Research Foundation. EQ-5D-3L User Guide. 2018.
32.
go back to reference Stouthard ME, Essink-Bot M, Bonsel G, Barendregt J, Kramers P, Van de Water H, et al. Disability weights for diseases in the Netherlands. 1997. Stouthard ME, Essink-Bot M, Bonsel G, Barendregt J, Kramers P, Van de Water H, et al. Disability weights for diseases in the Netherlands. 1997.
33.
go back to reference Krabbe PF, Stouthard ME, Essink-Bot M-L, Bonsel GJ. The effect of adding a cognitive dimension to the EuroQol multiattribute health-status classification system. J Clin Epidemiol. 1999;52(4):293–301.PubMed Krabbe PF, Stouthard ME, Essink-Bot M-L, Bonsel GJ. The effect of adding a cognitive dimension to the EuroQol multiattribute health-status classification system. J Clin Epidemiol. 1999;52(4):293–301.PubMed
34.
go back to reference Baeuml J, Bose-O’Reilly S, Gothe RM, Lettmeier B, Roider G, Drasch G, et al. Human biomonitoring data from mercury exposed miners in six artisanal small-scale gold mining areas in Asia and Africa. Minerals. 2011;1(1):122–43. Baeuml J, Bose-O’Reilly S, Gothe RM, Lettmeier B, Roider G, Drasch G, et al. Human biomonitoring data from mercury exposed miners in six artisanal small-scale gold mining areas in Asia and Africa. Minerals. 2011;1(1):122–43.
35.
go back to reference Jelsma J, Hansen K, De Weerdt W, De Cock P, Kind P. How do Zimbabweans value health states? Popul Health Metrics. 2003;1(1):11. Jelsma J, Hansen K, De Weerdt W, De Cock P, Kind P. How do Zimbabweans value health states? Popul Health Metrics. 2003;1(1):11.
36.
go back to reference Schulz C, Wilhelm M, Heudorf U, Kolossa-Gehring M. Update of the reference and HBM values derived by the German human biomonitoring commission. Int J Hyg Environ Health. 2011;215(1):26–35.PubMed Schulz C, Wilhelm M, Heudorf U, Kolossa-Gehring M. Update of the reference and HBM values derived by the German human biomonitoring commission. Int J Hyg Environ Health. 2011;215(1):26–35.PubMed
37.
go back to reference Ha E, Basu N, Bose-O’Reilly S, Dórea JG, McSorley E, Sakamoto M, et al. Current progress on understanding the impact of mercury on human health. Environ Res. 2017;152:419–33.PubMed Ha E, Basu N, Bose-O’Reilly S, Dórea JG, McSorley E, Sakamoto M, et al. Current progress on understanding the impact of mercury on human health. Environ Res. 2017;152:419–33.PubMed
38.
go back to reference Veiga MM, Baker RF, Fried MB, Withers D. Protocols for environmental and health assessment of mercury released by artisanal and small-scale gold miners: United Nations publications; 2004. Veiga MM, Baker RF, Fried MB, Withers D. Protocols for environmental and health assessment of mercury released by artisanal and small-scale gold miners: United Nations publications; 2004.
39.
go back to reference Kwak SK, Kim JH. Statistical data preparation: management of missing values and outliers. Korean J Anesthesiol. 2017;70(4):407.PubMedPubMedCentral Kwak SK, Kim JH. Statistical data preparation: management of missing values and outliers. Korean J Anesthesiol. 2017;70(4):407.PubMedPubMedCentral
42.
go back to reference Hoppe S. Chronic illness as a source of happiness: paradox or perfectly normal? Health Cult Soc. 2013;5(1):265–78. Hoppe S. Chronic illness as a source of happiness: paradox or perfectly normal? Health Cult Soc. 2013;5(1):265–78.
44.
go back to reference Hayes K. Small-scale mining in Africa—a case for sustainable livelihood. Common Fund for Commodities; 2008. Hayes K. Small-scale mining in Africa—a case for sustainable livelihood. Common Fund for Commodities; 2008.
45.
go back to reference United Nations. Minerals and Africa's development: the international study group report on Africa's mineral regimes. Addis Ababa: Economic Commission for Africa; 2011. United Nations. Minerals and Africa's development: the international study group report on Africa's mineral regimes. Addis Ababa: Economic Commission for Africa; 2011.
46.
go back to reference Szende A, Janssen B, Cabases J. Self-reported population health: an international perspective based on EQ-5D. Dordrecht: Springer Netherlands; 2014. Szende A, Janssen B, Cabases J. Self-reported population health: an international perspective based on EQ-5D. Dordrecht: Springer Netherlands; 2014.
47.
go back to reference Noronha L, Nairy S. Assessing quality of life in a mining region. Econ Polit Wkly. 2005;40(1):72–8. Noronha L, Nairy S. Assessing quality of life in a mining region. Econ Polit Wkly. 2005;40(1):72–8.
48.
go back to reference Jelsma J, Ferguson G. The determinants of self-reported health-related quality of life in a culturally and socially diverse south African community. Bull World Health Organ. 2004;82:206–12.PubMedPubMedCentral Jelsma J, Ferguson G. The determinants of self-reported health-related quality of life in a culturally and socially diverse south African community. Bull World Health Organ. 2004;82:206–12.PubMedPubMedCentral
49.
go back to reference Mambrey V, Rakete S, Tobollik M, Shoko D, Moyo D, Schutzmeier P, et al. Artisanal and small-scale gold mining: a cross-sectional assessment of occupational mercury exposure and exposure risk factors in Kadoma and Shurugwi, Zimbabwe. Environ Res. 2020;184:109379.PubMed Mambrey V, Rakete S, Tobollik M, Shoko D, Moyo D, Schutzmeier P, et al. Artisanal and small-scale gold mining: a cross-sectional assessment of occupational mercury exposure and exposure risk factors in Kadoma and Shurugwi, Zimbabwe. Environ Res. 2020;184:109379.PubMed
50.
go back to reference Coons SJ, Rao S, Keininger DL, Hays RD. A comparative review of generic quality-of-life instruments. Pharmacoeconomics. 2000;17(1):13–35.PubMed Coons SJ, Rao S, Keininger DL, Hays RD. A comparative review of generic quality-of-life instruments. Pharmacoeconomics. 2000;17(1):13–35.PubMed
51.
go back to reference Gow J, George G, Govender K. A comparison of quality of life between HIV positive and negative diamond miners in South Africa. SAHARA-J: J Soc Aspects HIV/AIDS. 2013;10(2):89–95. Gow J, George G, Govender K. A comparison of quality of life between HIV positive and negative diamond miners in South Africa. SAHARA-J: J Soc Aspects HIV/AIDS. 2013;10(2):89–95.
52.
go back to reference Jelsma J, Mhundwa K, De WW, De PC, Chimera J, Chivaura V. The reliability of the Shona version of the EQ-5D. Central Afr J Med. 2001;47(1):8–13. Jelsma J, Mhundwa K, De WW, De PC, Chimera J, Chivaura V. The reliability of the Shona version of the EQ-5D. Central Afr J Med. 2001;47(1):8–13.
53.
go back to reference The EuroQol Group. EuroQol-a new facility for the measurement of health-related quality of life. Health Policy. 1990;16(3):199–208. The EuroQol Group. EuroQol-a new facility for the measurement of health-related quality of life. Health Policy. 1990;16(3):199–208.
54.
go back to reference De Smedt D, Clays E, Annemans L, De Bacquer D. EQ-5D versus SF-12 in coronary patients: are they interchangeable? Value Health. 2014;17(1):84–9.PubMed De Smedt D, Clays E, Annemans L, De Bacquer D. EQ-5D versus SF-12 in coronary patients: are they interchangeable? Value Health. 2014;17(1):84–9.PubMed
55.
go back to reference Bharmal M, Thomas J III. Comparing the EQ-5D and the SF-6D descriptive systems to assess their ceiling effects in the US general population. Value Health. 2006;9(4):262–71.PubMed Bharmal M, Thomas J III. Comparing the EQ-5D and the SF-6D descriptive systems to assess their ceiling effects in the US general population. Value Health. 2006;9(4):262–71.PubMed
56.
go back to reference Efthymiadou O, Mossman J, Kanavos P. Health related quality of life aspects not captured by EQ-5D-5L: results from an international survey of patients. Health Policy. 2019;123(2):159–65.PubMed Efthymiadou O, Mossman J, Kanavos P. Health related quality of life aspects not captured by EQ-5D-5L: results from an international survey of patients. Health Policy. 2019;123(2):159–65.PubMed
58.
go back to reference Kristensen AKB, Thomsen JF, Mikkelsen S. A review of mercury exposure among artisanal small-scale gold miners in developing countries. Int Arch Occup Environ Health. 2013;87(6):579–90.PubMed Kristensen AKB, Thomsen JF, Mikkelsen S. A review of mercury exposure among artisanal small-scale gold miners in developing countries. Int Arch Occup Environ Health. 2013;87(6):579–90.PubMed
59.
go back to reference Kyeremateng-Amoah E, Clarke E. Injuries among artisanal and small-scale gold miners in Ghana. Int J Environ Res Public Health. 2015;12(9):10886–96.PubMedPubMedCentral Kyeremateng-Amoah E, Clarke E. Injuries among artisanal and small-scale gold miners in Ghana. Int J Environ Res Public Health. 2015;12(9):10886–96.PubMedPubMedCentral
Metadata
Title
Health-related quality of life (EQ-5D + C) among people living in artisanal and small-scale gold mining areas in Zimbabwe: a cross-sectional study
Authors
Friederike-Marie Butscher
Stefan Rakete
Myriam Tobollik
Viola Mambrey
Dingani Moyo
Dennis Shoko
Shamiso Muteti-Fana
Nadine Steckling-Muschack
Stephan Bose-O’Reilly
Publication date
01-12-2020
Publisher
BioMed Central
Keyword
Intoxication
Published in
Health and Quality of Life Outcomes / Issue 1/2020
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/s12955-020-01530-w

Other articles of this Issue 1/2020

Health and Quality of Life Outcomes 1/2020 Go to the issue