References
- International Labour Organization, Organisation for Economic Co-operation and Development. Ensuring Better Social Protection for Self-Employed Workers. Geneva, Switzerland: International Labour Organization; 2020.
- Self-employment rate. https://www.oecd-ilibrary.org/content/data/fb58715e-en. Updated 2018. Accessed August, 2021.
- Statistics Korea. Statistics on Self-Employment. Daejeon, Korea: Statistics Korea; 2020.
- Sohn M, Che X, Park HJ. Unmet healthcare needs, catastrophic health expenditure, and health in South Korea's Universal healthcare system: progression towards improving equity by NHI type and income level. Healthcare (Basel) 2020;8(4):408.
- Shi L. Vulnerable populations and health insurance. Med Care Res Rev 2000;57(1):110-34. https://doi.org/10.1177/107755870005700107
- Park J, Han B, Kim Y. Comparison of occupational health problems of employees and self-employed individuals who work in different fields. Arch Environ Occup Health 2020;75(2):98-111. https://doi.org/10.1080/19338244.2019.1577209
- Jahangiri M, Rostamabadi A, Yekzamani P, Mahmood Abadi B, Behbood F, Ahmadi SF, et al. A descriptive study of occupational health services in self-employed enterprises (nanoscale enterprises), Shiraz, Iran. Saf Health Work 2016;7(4):317-21. https://doi.org/10.1016/j.shaw.2016.05.004
- Kim HJ, Min JY, Min KB. Physical and mental health problems of self-employed small business owners in South Korea. Am J Ind Med 2019;62(9):783-90. https://doi.org/10.1002/ajim.23023
- Park J, Han B, Kim Y. Self-employed individuals performing different types of work have different occupational safety and health problems. Am J Ind Med 2018;61(8):681-90. https://doi.org/10.1002/ajim.22862
- Global Health Data Exchange. Global Burden of Disease Study 2017 Data Resources. Seattle, WA, USA: Institute for Health Metrics and Evaluation; 2019.
- Yong LC, Li J, Calvert GM. Sleep-related problems in the US working population: prevalence and association with shiftwork status. Occup Environ Med 2017;74(2):93-104. https://doi.org/10.1136/oemed-2016-103638
- Liu MY, Li N, Li WA, Khan H. Association between psychosocial stress and hypertension: a systematic review and meta-analysis. Neurol Res 2017;39(6):573-80. https://doi.org/10.1080/01616412.2017.1317904
- Chandola T, Ferrie JE, Perski A, Akbaraly T, Marmot MG. The effect of short sleep duration on coronary heart disease risk is greatest among those with sleep disturbance: a prospective study from the Whitehall II cohort. Sleep 2010;33(6):739-44. https://doi.org/10.1093/sleep/33.6.739
- Vgontzas AN, Liao D, Bixler EO, Chrousos GP, Vela-Bueno A. Insomnia with objective short sleep duration is associated with a high risk for hypertension. Sleep 2009;32(4):491-7. https://doi.org/10.1093/sleep/32.4.491
- Vgontzas AN, Liao D, Pejovic S, Calhoun S, Karataraki M, Bixler EO. Insomnia with objective short sleep duration is associated with type 2 diabetes: a population-based study. Diabetes Care 2009;32(11):1980-5. https://doi.org/10.2337/dc09-0284
- Jain A, Sharma R, Choudhary PK, Yadav N, Jain G, Maanju M. Study of fatigue, depression, and associated factors in type 2 diabetes mellitus in industrial workers. Ind Psychiatry J 2015;24(2):179-84. https://doi.org/10.4103/0972-6748.181731
- Kessler RC, Berglund PA, Coulouvrat C, Hajak G, Roth T, Shahly V, et al. Insomnia and the performance of US workers: results from the America insomnia survey. Sleep (Basel) 2011;34(9):1161-71. https://doi.org/10.5665/SLEEP.1230
- Lombardi DA, Folkard S, Willetts JL, Smith GS. Daily sleep, weekly working hours, and risk of workrelated injury: US National Health Interview Survey (2004-2008). Chronobiol Int 2010;27(5):1013-30. https://doi.org/10.3109/07420528.2010.489466
- Williamson A, Lombardi DA, Folkard S, Stutts J, Courtney TK, Connor JL. The link between fatigue and safety. Accid Anal Prev 2011;43(2):498-515. https://doi.org/10.1016/j.aap.2009.11.011
- Ivandic I, Kamenov K, Rojas D, Ceron G, Nowak D, Sabariego C. Determinants of work performance in workers with depression and anxiety: a cross-sectional study. Int J Environ Res Public Health 2017;14(5):466.
- Chung YK, Park CY. The effects of injury and accidents on self-rated depression in male municipal firefighters. Saf Health Work 2011;2(2):158-68. https://doi.org/10.5491/SHAW.2011.2.2.158
- Park J, Lee N. First Korean working conditions survey: a comparison between South Korea and EU countries. Ind Health 2009;47(1):50-4. https://doi.org/10.2486/indhealth.47.50
- Kim YS, Park J, Rhee KY, Kim HM. A comparison between the second Korean Working Conditions Survey (KWCS) and the first KWCS. Saf Health Work 2015;6(2):85-9. https://doi.org/10.1016/j.shaw.2015.02.005
- Kim SY, Shin YC, Oh KS, Shin DW, Lim WJ, Cho SJ, et al. Association between work stress and risk of suicidal ideation: a cohort study among Korean employees examining gender and age differences. Scand J Work Environ Health 2020;46(2):198-208. https://doi.org/10.5271/sjweh.3852
- Eager B, Grant S, Maritz A, editors. Entrepreneurs and the stress-coping-strain process: how relevant are existing theoretical frameworks? Australian Centre for Entrepreneurship Research Exchange (ACERE) Conference; 2015 Feb 3-6; Adelaide, Australia. Melbourne: Swinburne University of Technology; 2015.
- Chrousos GP. Stress as a medical and scientific idea and its implications. Adv Pharmacol 1998;42:552-6. https://doi.org/10.1016/S1054-3589(08)60810-8
- Dahlgren A, Kecklund G, Akerstedt T. Different levels of work-related stress and the effects on sleep, fatigue and cortisol. Scand J Work Environ Health 2005;31(4):277-85. https://doi.org/10.5271/sjweh.883
- Chokroverty S. Principles and practice of sleep medicine, 2nd ed. Neurology 1994;44(10):1991.
- Boyer P. Do anxiety and depression have a common pathophysiological mechanism? Acta Psychiatr Scand Suppl 2000;102(406):24-9. https://doi.org/10.1111/j.0065-1591.2000.acp29-04.x
- Grote NK, Bledsoe SE, Larkin J, Lemay EP Jr, Brown CJ. Stress exposure and depression in disadvantaged women: the protective effects of optimism and perceived control. Soc Work Res 2007;31(1):19-33. https://doi.org/10.1093/swr/31.1.19
- Vgontzas AN, Tsigos C, Bixler EO, Stratakis CA, Zachman K, Kales A, et al. Chronic insomnia and activity of the stress system: a preliminary study. J Psychosom Res 1998;45(1):21-31. https://doi.org/10.1016/S0022-3999(97)00302-4
- Vgontzas AN, Bixler EO, Lin HM, Prolo P, Mastorakos G, Vela-Bueno A, et al. Chronic insomnia is associated with nyctohemeral activation of the hypothalamic-pituitary-adrenal axis: clinical implications. J Clin Endocrinol Metab 2001;86(8):3787-94. https://doi.org/10.1210/jcem.86.8.7778
- Rissler A, Elgerot A. Stress Reactions During Overtime at Work. Longitudinal Study of Psychological Reactions During and After Work. Stockholm, Sweden: University of Stockholm, Department of Psychology; 1978.
- Melamed S, Ugarten U, Shirom A, Kahana L, Lerman Y, Froom P. Chronic burnout, somatic arousal and elevated salivary cortisol levels. J Psychosom Res 1999;46(6):591-8. https://doi.org/10.1016/S0022-3999(99)00007-0
- Gregoris M, Deschamps F, Salles J, Sanchez S. Health assessment of self-employed in the food service industry. Int J Occup Environ Health 2017;23(3):234-42. https://doi.org/10.1080/10773525.2018.1470788
- Andersson P. Happiness and health: well-being among the self-employed. Int J Soc Econ 2008;37(1):213-36. https://doi.org/10.1016/j.socec.2007.03.003
- Willeke K, Janson P, Zink K, Stupp C, Kittel-Schneider S, Berghofer A, et al. Occurrence of mental illness and mental health risks among the self-employed: a systematic review. Int J Environ Res Public Health 2021;18(16):8617.
- Hessels J, Rietveld CA, van der Zwan P. Self-employment and work-related stress: the mediating role of job control and job demand. J Bus Venturing 2017;32(2):178-96. https://doi.org/10.1016/j.jbusvent.2016.10.007
- Min JY, Kim HJ, Min KB. Self-employment's vulnerability to socioeconomic and working conditions: results from the Korean Working Condition Survey (2006-2014). J Glob Health Rep 2019;3:e2019039.
- Shin KY. Economic crisis, neoliberal reforms, and the rise of precarious work in South Korea. Am Behav Sci 2012;57(3):335-53. https://doi.org/10.1177/0002764212466241