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Published in: Applied Health Economics and Health Policy 4/2004

01-12-2004 | Article

How much might universal health insurance reduce socioeconomic disparities in health?

A comparison of the US and Canada

Authors: Dr Sandra L. Decker, Dahlia K. Rentier

Published in: Applied Health Economics and Health Policy | Issue 4/2004

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Abstract

A strong association between lower socioeconomic status and worse health has been documented within many countries, but little work has been done to compare the strength of this relationship across countries. We compare the strength of the relationship between income and self-reported health in the US and Canada. We find that being below median income raises the likelihood that a middle-aged person is in poor or fair health by about 15 percentage points in the US, compared with less than 8 percentage points in Canada. We also find that this 7 percentage points stronger relationship between low income and poor health in the US compared with Canada is reduced by about 4 percentage points after age 65, the age at which virtually all US citizens receive basic health insurance through the Medicare programme. Income differences in the probability that an individual lacks a usual source of care are also significantly larger in the US than in Canada before the age of 65, but about the same after age 65. Our results are therefore consistent with the theory that the availability of universal health insurance in the US, or at least some other difference that occurs around the age of 65 in one country but not the other, decreases the difference in the strength of the income-health relationship in the US compared with Canada.
Literature
1.
go back to reference Backlund E, Sorlie PD, Johnson NJ. The shape of the relationship between income and mortality in the United States. Ann Epidemiol 1996; 6(1): 12–20PubMedCrossRef Backlund E, Sorlie PD, Johnson NJ. The shape of the relationship between income and mortality in the United States. Ann Epidemiol 1996; 6(1): 12–20PubMedCrossRef
2.
go back to reference Mustard CA, Derkson S, Berthelot JM, et al. Age-specific education and income gradients in morbidity and mortality in a Canadian province. Soc Sci Med 1997: 45(3): 383–97PubMedCrossRef Mustard CA, Derkson S, Berthelot JM, et al. Age-specific education and income gradients in morbidity and mortality in a Canadian province. Soc Sci Med 1997: 45(3): 383–97PubMedCrossRef
3.
go back to reference Deaton A. Policy implications of the gradient of health and wealth. Health Aff 2002; 21(2): 31–46CrossRef Deaton A. Policy implications of the gradient of health and wealth. Health Aff 2002; 21(2): 31–46CrossRef
4.
go back to reference Marmot M. The influence of income on health: views of an epidemiologist. Health Aff 2002; 21(2): 31–46CrossRef Marmot M. The influence of income on health: views of an epidemiologist. Health Aff 2002; 21(2): 31–46CrossRef
5.
go back to reference Kunst AE, Geurts JJM, van den Berg J. International variation in socioeconomic inequalities in self reported health. J Epidemiol Community Health 1995; 49: 117–23PubMedCrossRef Kunst AE, Geurts JJM, van den Berg J. International variation in socioeconomic inequalities in self reported health. J Epidemiol Community Health 1995; 49: 117–23PubMedCrossRef
6.
go back to reference Van Doorslaer E, Wagstaff A, Van der Burg H, et al. Equity in the delivery of health care in Europe and the US. J Health Econ 2000; 19(5): 553–84PubMedCrossRef Van Doorslaer E, Wagstaff A, Van der Burg H, et al. Equity in the delivery of health care in Europe and the US. J Health Econ 2000; 19(5): 553–84PubMedCrossRef
7.
go back to reference Deaton A, Paxson CH. Aging and inequality in income and health. Am Econ Rev 1998; 88(2): 248–53 Deaton A, Paxson CH. Aging and inequality in income and health. Am Econ Rev 1998; 88(2): 248–53
8.
go back to reference House JS, Kessler RC, Herzog AR. Age, socioeconomic status, and health. Milbank Q 1990; 68: 383–411PubMedCrossRef House JS, Kessler RC, Herzog AR. Age, socioeconomic status, and health. Milbank Q 1990; 68: 383–411PubMedCrossRef
9.
go back to reference Preston SH, Taubman P. Socioeconomic differences in adult mortality and health status. In: Martin LG, Preston SH, editors. Demography of aging. Washington, DC: National Academy Press, 1994 Preston SH, Taubman P. Socioeconomic differences in adult mortality and health status. In: Martin LG, Preston SH, editors. Demography of aging. Washington, DC: National Academy Press, 1994
10.
go back to reference Prus SG. The relationship between age, socio-economic status, and health among adult Canadians. Program for Research on Social and Economic Dimensions of an Aging Population (SEDAP) research paper no. 57. Hamilton (ON): McMaster University, 2001 Prus SG. The relationship between age, socio-economic status, and health among adult Canadians. Program for Research on Social and Economic Dimensions of an Aging Population (SEDAP) research paper no. 57. Hamilton (ON): McMaster University, 2001
11.
go back to reference Ettner S. New evidence on the relationship between income and health. J Health Econ 1996; 15: 67–85PubMedCrossRef Ettner S. New evidence on the relationship between income and health. J Health Econ 1996; 15: 67–85PubMedCrossRef
12.
go back to reference Smith JP. Healthy bodies and thick wallets: the dual relation between health and economic status. J Econ Perspect 1999; 13(2): 145–66CrossRef Smith JP. Healthy bodies and thick wallets: the dual relation between health and economic status. J Econ Perspect 1999; 13(2): 145–66CrossRef
13.
go back to reference House JS, Lepkowski JM, Kinney AM. The social stratification of aging and health. J Health Soc Behav 1994 Sep; 35(3): 213–34PubMedCrossRef House JS, Lepkowski JM, Kinney AM. The social stratification of aging and health. J Health Soc Behav 1994 Sep; 35(3): 213–34PubMedCrossRef
14.
go back to reference Cohen S, Line S, Manuck SB, et al. Chronic social stress, social status, and susceptibility to upper respiratory infections in nonhuman primates. Psychosom Med 1997 May–Jun; 59(3): 222–3 Cohen S, Line S, Manuck SB, et al. Chronic social stress, social status, and susceptibility to upper respiratory infections in nonhuman primates. Psychosom Med 1997 May–Jun; 59(3): 222–3
15.
go back to reference Cohen S. Social status and susceptibility to upper respiratory infections. Ann N Y Acad Sci 1999; 896: 246–53PubMedCrossRef Cohen S. Social status and susceptibility to upper respiratory infections. Ann N Y Acad Sci 1999; 896: 246–53PubMedCrossRef
16.
go back to reference Wolfson M, Rowe G, Gentleman JF, et al. Career earnings and death: a longitudinal analysis of older Canadian men. J Gerontol 1993 Jul; 48(4): S167–79PubMedCrossRef Wolfson M, Rowe G, Gentleman JF, et al. Career earnings and death: a longitudinal analysis of older Canadian men. J Gerontol 1993 Jul; 48(4): S167–79PubMedCrossRef
17.
go back to reference Williams DR. Socioeconomic differences in health: a review and redirection. Soc Psychol Q 1990 Jun; 53: 81–99CrossRef Williams DR. Socioeconomic differences in health: a review and redirection. Soc Psychol Q 1990 Jun; 53: 81–99CrossRef
18.
go back to reference Lantz PM, House JS, Lepkowski JM, et al. Socioeconomic factors, health behaviors, and mortality: results from a nationally representative prospective study of US adults. JAMA 1998; 279(21): 1703–8PubMedCrossRef Lantz PM, House JS, Lepkowski JM, et al. Socioeconomic factors, health behaviors, and mortality: results from a nationally representative prospective study of US adults. JAMA 1998; 279(21): 1703–8PubMedCrossRef
19.
go back to reference Marmot MG. Social differences in health within and between populations. Daedalus 1994; Fall: 197–216 Marmot MG. Social differences in health within and between populations. Daedalus 1994; Fall: 197–216
20.
go back to reference McKeown T. The role of medicine: dream, mirage, or nemesis. Princeton: Princeton University Press, 1979 McKeown T. The role of medicine: dream, mirage, or nemesis. Princeton: Princeton University Press, 1979
21.
go back to reference Fogel RW. New findings on secular trends in nutrition and mortality: some implications for population theory. In: Rosenzweig M, Stark, O, editors. Handbook of population and family economics. Vol. 1 A. Amsterdam: Elsevier, 1997 Fogel RW. New findings on secular trends in nutrition and mortality: some implications for population theory. In: Rosenzweig M, Stark, O, editors. Handbook of population and family economics. Vol. 1 A. Amsterdam: Elsevier, 1997
22.
go back to reference Elo IT, Preston SH. Educational differentials in mortality: United States, 1979–1985. Soc Sci Med 1996; 42: 47–57PubMedCrossRef Elo IT, Preston SH. Educational differentials in mortality: United States, 1979–1985. Soc Sci Med 1996; 42: 47–57PubMedCrossRef
23.
go back to reference Grossman M. On the concept of health capital and the demand for health. J Polit Econ 1972 Mar–Apr; 80(2): 223–55CrossRef Grossman M. On the concept of health capital and the demand for health. J Polit Econ 1972 Mar–Apr; 80(2): 223–55CrossRef
24.
go back to reference Lleras-Muney A. The relationship between education and adult mortality in the United States. National Bureau of Economic Research working paper no. 8986. Cambridge (MA): National Bureau of Economic Research, 2002 Lleras-Muney A. The relationship between education and adult mortality in the United States. National Bureau of Economic Research working paper no. 8986. Cambridge (MA): National Bureau of Economic Research, 2002
25.
go back to reference Beckett M. Converging health inequalities in later life: an artifact of mortality selection? J Health Soc Behav 2002; 41: 106–19CrossRef Beckett M. Converging health inequalities in later life: an artifact of mortality selection? J Health Soc Behav 2002; 41: 106–19CrossRef
26.
go back to reference Gruber J. The incidence of mandated maternity benefits. Am Econ Rev 1994; 84(3): 622–41PubMed Gruber J. The incidence of mandated maternity benefits. Am Econ Rev 1994; 84(3): 622–41PubMed
27.
go back to reference Joyce T, Kaestner R. State reproductive policies and adolescent pregnancy resolution: the case of parental involvement laws. J Health Econ 1996; 15(5): 579–608PubMedCrossRef Joyce T, Kaestner R. State reproductive policies and adolescent pregnancy resolution: the case of parental involvement laws. J Health Econ 1996; 15(5): 579–608PubMedCrossRef
28.
go back to reference Baker M, Gruber J, Milligan L. Income security programs and retirement in Canada. In: Gruber J, Wise DA, editors. Social security programs and retirement around the world: micro-estimation. Chicago: The University of Chicago Press, 2004: 99–152 Baker M, Gruber J, Milligan L. Income security programs and retirement in Canada. In: Gruber J, Wise DA, editors. Social security programs and retirement around the world: micro-estimation. Chicago: The University of Chicago Press, 2004: 99–152
29.
go back to reference Dwyer DS, Mitchell OS. Health problems as determinants of retirement: are self-rated measures endogenous? J Health Econ 1999; 18(2): 173–93PubMedCrossRef Dwyer DS, Mitchell OS. Health problems as determinants of retirement: are self-rated measures endogenous? J Health Econ 1999; 18(2): 173–93PubMedCrossRef
30.
go back to reference Bound J. Self-reported versus objective measures of health in retirement models. J Hum Resour 1991; 26(1): 106–38CrossRef Bound J. Self-reported versus objective measures of health in retirement models. J Hum Resour 1991; 26(1): 106–38CrossRef
31.
go back to reference Tambay J-L, Catllin G. Sample design of the National Population Health Survey. Health Rep 1995; 7(1): 29–38PubMed Tambay J-L, Catllin G. Sample design of the National Population Health Survey. Health Rep 1995; 7(1): 29–38PubMed
32.
go back to reference US Department of Health and Human Services, National Center for Health Statistics. National Health Interview Survey, 1998 [computer file]. Hyattsville (MD): US Department of Health and Human Services, National Center for Health Statistics, 1998 US Department of Health and Human Services, National Center for Health Statistics. National Health Interview Survey, 1998 [computer file]. Hyattsville (MD): US Department of Health and Human Services, National Center for Health Statistics, 1998
33.
go back to reference Sveinbjorn B, Scarpetta S. The retirement decision in OECD countries. OECD Economics Department working papers no. 202. Paris: Organisation for Economic Cooperation and Development, 1999 Sveinbjorn B, Scarpetta S. The retirement decision in OECD countries. OECD Economics Department working papers no. 202. Paris: Organisation for Economic Cooperation and Development, 1999
34.
go back to reference Kerckhoff AC, Dylan M. Problems with international measures of education. J Socioecon 1999; 28: 759–75 Kerckhoff AC, Dylan M. Problems with international measures of education. J Socioecon 1999; 28: 759–75
35.
go back to reference Idler EL, Kasl SV. Health perceptions and survival: do global evaluations of health status really predict mortality? J Gerontol 1991; 46(2): S55–65PubMedCrossRef Idler EL, Kasl SV. Health perceptions and survival: do global evaluations of health status really predict mortality? J Gerontol 1991; 46(2): S55–65PubMedCrossRef
36.
go back to reference Idler EL, Angel RJ. Self-rated health and mortality in the NHANES-I Epidemiologic Follow-Up Study. Am J Public Health 1990; 80(4): 446–52PubMedCrossRef Idler EL, Angel RJ. Self-rated health and mortality in the NHANES-I Epidemiologic Follow-Up Study. Am J Public Health 1990; 80(4): 446–52PubMedCrossRef
37.
go back to reference Mossey JM, Shapiro E. Self-rated health: a predictor of mortality among the elderly. Am J Public Health 1982; 72(8): 800–7PubMedCrossRef Mossey JM, Shapiro E. Self-rated health: a predictor of mortality among the elderly. Am J Public Health 1982; 72(8): 800–7PubMedCrossRef
38.
go back to reference Larson R. Thirty years of research on the subjective well-being of older Americans. J Gerontol 1978; 33(1): 109–25PubMedCrossRef Larson R. Thirty years of research on the subjective well-being of older Americans. J Gerontol 1978; 33(1): 109–25PubMedCrossRef
39.
go back to reference Angel R, Thoits P. The impact of culture on the cognitive structure of illness. Cult Med Psychiatry 1987; 11: 465–94PubMedCrossRef Angel R, Thoits P. The impact of culture on the cognitive structure of illness. Cult Med Psychiatry 1987; 11: 465–94PubMedCrossRef
40.
go back to reference Natividad JN, Cruz G. Patterns in living arrangements and familial support for the elderly in the Philippines. Asia Pac Popul J 1997; 12(4): 17–34PubMed Natividad JN, Cruz G. Patterns in living arrangements and familial support for the elderly in the Philippines. Asia Pac Popul J 1997; 12(4): 17–34PubMed
41.
go back to reference Zimmer Z, Natividad J, Lin H-S, et al. A cross-national examination of the determinants of self-assessed health. J Health Soc Behav 2002; 41(4): 465–81CrossRef Zimmer Z, Natividad J, Lin H-S, et al. A cross-national examination of the determinants of self-assessed health. J Health Soc Behav 2002; 41(4): 465–81CrossRef
42.
go back to reference Ettner SL. The timing of preventive services for women and children: the effect of having a usual source of care. Am J Public Health 1996; 86: 1748–54PubMedCrossRef Ettner SL. The timing of preventive services for women and children: the effect of having a usual source of care. Am J Public Health 1996; 86: 1748–54PubMedCrossRef
43.
go back to reference Grootenoorst PV, O’Brien BJ, Anderson GM. On becoming 65 in Ontario: effects of drug plan eligibility on use of prescription medicines. Med Care 1997; 35(4): 386–98CrossRef Grootenoorst PV, O’Brien BJ, Anderson GM. On becoming 65 in Ontario: effects of drug plan eligibility on use of prescription medicines. Med Care 1997; 35(4): 386–98CrossRef
44.
go back to reference Currie J, Stabile M. Socioeconomic status and child health: why is the relationship stronger for older children? Am Econ Rev 2003; 93(5): 1813–23CrossRef Currie J, Stabile M. Socioeconomic status and child health: why is the relationship stronger for older children? Am Econ Rev 2003; 93(5): 1813–23CrossRef
Metadata
Title
How much might universal health insurance reduce socioeconomic disparities in health?
A comparison of the US and Canada
Authors
Dr Sandra L. Decker
Dahlia K. Rentier
Publication date
01-12-2004
Publisher
Springer International Publishing
Published in
Applied Health Economics and Health Policy / Issue 4/2004
Print ISSN: 1175-5652
Electronic ISSN: 1179-1896
DOI
https://doi.org/10.2165/00148365-200403040-00004

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