Socio-economic inequalities: A review of methodological issues and the relationships with cancer survival

Critical Reviews in Oncology/Hematology

Volumn 85, Issue 3, 2013, Pages 266-277

  Quaglia, Alberto ^a,f   Lillini, Roberto ^a,b,c,f   Mamo, Carlo ^d,k   Ivaldi, Enrico ^e   Vercelli, Marina ^a,e,f   Capocaccia, R ^b   De Angelis, R ^b   Gatta, G ^g   Pannozzo, F ^f   Ramazzotti, V ^h   Fusco, M ^f   Cilia, S ^f   De Felice, E ^f   Vattiato, R ^f   Senatore, R ^f   Zucchetto, A ^f   Buzzoni, C ^f   Tognazzo, S ^f   Bellu F ^f   Piffer, S ^f   Stracci, F ^f   Zarcone, M ^f   Rashid, I ⁱ   Caranci, N ^j   more..

^a UNIVERSITY OF GENOA   (Italy)

^b ISTITUTO SUPERIORE DI SANITÀ   (Italy)

^c VITA SALUTE SAN RAFFAELE UNIVERSITY   (Italy)

^d Azienda Sanitaria Locale TO 3   (Italy)

^e UNIVERSITY OF GENOA   (Italy)

^f Registro Tumori Liguria ^*  (Italy)

^g Istituto Nazionale Tumori   (Italy)

^h REGINA ELENA NATIONAL CANCER INSTITUTE   (Italy)

ⁱ Unit of Infecious Diseases and Vaccination   (Italy)

^j Agenzia Sanitaria Regione Emilia Romagna   (Italy)

^k Azienda Sanitatria Locale di Torino 3   (Italy)

more..

Author keywords

Access to health care; Cancer survival; Deprivation indexes; Social class; Social support; Socioeconomic factors

Indexed keywords

ANTINEOPLASTIC AGENT;

BLADDER CANCER; BREAST CANCER; CANCER ADJUVANT THERAPY; CANCER INCIDENCE; CANCER MORTALITY; CANCER RADIOTHERAPY; CANCER SCREENING; CANCER STAGING; CANCER SURGERY; CANCER SURVIVAL; CENTRAL NERVOUS SYSTEM TUMOR; COLORECTAL CANCER; DEMOGRAPHY; DIGESTIVE SYSTEM CANCER; EARLY DIAGNOSIS; EUROPE; HEAD AND NECK CANCER; HEALTH CARE ACCESS; HEALTH CARE DISPARITY; HUMAN; LARYNX CANCER; LUNG CANCER; MARRIAGE; MELANOMA; PARTIAL MASTECTOMY; PROGNOSIS; PROSTATE CANCER; PROSTATECTOMY; REVIEW; SOCIAL CLASS; SOCIAL ISOLATION; SOCIAL PSYCHOLOGY; SOCIAL STATUS; SOCIOECONOMICS; UTERINE CERVIX CANCER;

HEALTHCARE DISPARITIES; HUMANS; NEOPLASMS; SOCIAL CLASS; SOCIOECONOMIC FACTORS;

EID: 84873523199     PISSN: 10408428     EISSN: 18790461     Source Type: Journal    
DOI: 10.1016/j.critrevonc.2012.08.007     Document Type: Review

References (122)

1. Ferlay J., Shin H.R., Bray F., Forman D., Mathers C., Parkin D.M. GLOBOCAN 2008 v1.2, cancer incidence and mortality worldwide: IARC CancerBase No. 10 [Internet] 2010, International Agency for Research on Cancer, Lyon, France.
2. Evans B.T., Pritchard C. Cancer survival rates and GDP expenditure on health: a comparison of England and Wales and the USA, Denmark, Netherlands, Finland, France, Germany, Italy Spain and Switzerland in the 1990s. Public Health 2000, 114(5):336-339.
3. Verdecchia A., Baili P., Quaglia A., et al. Patient survival for all cancers combined as indicator of cancer control in Europe. European Journal of Public Health 2008, 18:527-532.
4. Vercelli M., Lillini R., Capocaccia R., et al. Cancer survival in the elderly: effects of socio-economic factors and health care system features. European Journal of Cancer 2006, 42:234-242.
5. Quaglia A., Vercelli M., Lillini R., et al. Socio-economic factors and health care system characteristics related to cancer survival in the elderly. A population-based analysis in sixteen European countries. Critical Reviews in Oncology/Hematology 2005, 54:117-128.
6. Lillini R., Vercelli M., Quaglia A., Micheli A., Capocaccia R. Use of socio-economic factors and healthcare resources to estimate cancer survival in European countries with partial national cancer registration. Tumori 2011, 97:265-274.
7. Monfardini S., Yancik R. Cancer in the elderly: meeting the challenge of an aging population. Journal of the National Cancer Institute 1993, 85:532-538.
8. PubMed. United States National Library of Medicine (NLM). http://www.ncbi.nlm.nih.gov/PubMed/.
9. http://www.info.sciverse.com/scopus.
10. Social inequalities and cancer 1997, IARC Scientific Publications No. 138, Lyon. M. Kogevinas, N. Pearce, M. Susser, P. Boffetta (Eds.).
11. Woods L.M., Rachet B., Coleman M.P. Origins of socio-economic inequalities in cancer survival: a review. Annals of Oncology 2006, 17:5-19.
12. Weber M. Class status and power. From Max Weber: essays in sociology 1946, Oxford University Press, New York. H. Gerth, C.W. Mills (Eds.).
13. Houser R.M., Featherman D.L. The process of stratification: trends and analyses 1977, Academic Press, New York.
14. Nam C.B., Terrie E.W. Measurements of socioeconomic status from United Stated census data. Measures of socioeconomic status: current issues 1982, Westwiew Press, Boulder, CO. M.G. Powers (Ed.).
15. Barber B. Introduction to social stratification. International Encyclopedia of the Social Sciences 1968, 15:288-298.
16. Liberatos P., Link B.G., Kensey J.L. The measurements of social class in epidemiology. Epidemiologic Reviews 1988, 10:87-121.
17. Spadea T., Zengarini N., Kunst A., Zanetti R., Rosso S., Costa G. Cancer risk in relationship to different indicators of adult socioeconomic position in Turin, Italy. Cancer Causes and Control 2010, 21:1117-1130.
18. Woods L.M., Rachet B., Coleman M.P. Choice of geographic unit influences socioeconomic inequalities in breast cancer survival. British Journal of Cancer 2005, 92(7):1279-1282.
19. Robert S.A., Strombom I., Trentham-Dietz A., et al. Socioeconomic risk factors for breast cancer: distinguishing individual- and community-level effects. Epidemiology 2004, 15(4):442-450.
20. Donnelly D.W., Gavin A. Socio-economic inequalities in cancer incidence - the choice of deprivation measure matters. Cancer Epidemiology 2011, August. [Epub ahead of print].
21. Keirn W., Metter G. Survival of cancer patients by economic status in a free care setting. Cancer 1985, 55:1552-1555.
22. Page W.F., Kuntz A.J. Racial and socioeconomic factors in cancer survival. Cancer 1980, 45:1029-1040.
23. Berg J.W., Ross R., Latourette H.B. Economic status and survival of cancer patients. Cancer 1977, 39:467-477.
24. Linden G. The influence of social class in the survival of cancer patients. American Journal of Public Health 1969, 59:267-274.
25. Lipworth L., Bennett B., Parker P. Prognosis of non private cancer patients. Journal of the National Cancer Institute 1972, 48:11-16.
26. Schrijvers C.T.M., Mackenbach J.P. Cancer patient survival by socioeconomic status in the Netherlands: a review for six common cancer sites. Journal of Epidemiology and Community Health 1994, 48:441-446.
27. Testi A., Ivaldi E. Material versus social deprivation and health: a case study of an urban area. The European Journal of Health Economics 2009, 10:323-328.
28. Townsend P., Phillimore P., Beattie A. Health and deprivation: inequality and the North 1988, Croom Helm, London.
29. Murray C., Frenk J., Gakidou E. Measuring health inequality: challenges and new directions. Poverty inequality and health 2001, Oxford University Press, Oxford. D. Leon, G. Walt (Eds.).
30. Caranci N., Biggeri A., Grisotto L., Pacelli B., Spadea T., Costa G. L' indice di deprivazione italiano a livello di sezione di censimento: definizione, descrizione e associazione con la mortalità. Epidemiologia e Prevenzione 2010, 34(4):167-176.
31. Mackenbach J.P., Looman C.W.N. Living standards and mortality in the European Community. Journal of Epidemiology and Community Health 1994, 48:140-145.
32. AIRT Working Group Italian cancer figures - report 2006. Epidemiologia e Prevenzione 2006, 30(1, Suppl. 2):1-147.
33. Teppo L. Cancer incidence by living area, social class and occupation. Scandinavian Journal of Work, Environment and Health 1984, 10:361-366.
34. Kanavos P., Mossialos E. International comparisons of health care expenditures: what we know and what we do not know. Journal of Health Services Research and Policy 1999, 4:122-126.
35. Waaler H.T., Starky C. What is the best indicator of health care?. World Health Forum 1984, 5:276-279.
36. Tresserras R., Canela J., Alvarez J., Sentis J., Salleras L. Infant mortality, per capita income and adult illiteracy: an ecological approach. American Journal of Public Health 1992, 82:435-438.
37. Gerdtham U.G., Sogaard J., Jonsson B., Andersson F. A pooled cross-section analysis of the health care expenditures of the OECD countries. Developments in Health Economics and Public Policy 1992, 1:287-310.
38. Musgrove P., Zeramdini R., Carrin G. Basic patterns in national health expenditure. Bulletin of the World Health Organization 2002, 80:134-142.
39. Micheli A., Coebergh J.W., Mugno E., et al. European health systems and cancer care. Annals of Oncology 2003, 5:41-60.
40. Young J.L., Gloeckler-Ries L., Pollack E.S. Cancer patient survival among ethnic groups in the United States. Journal of the National Cancer Institute 1984, 73:341-352.
41. Coleman M.P., Babb P., Damiecki P., et al. Cancer survival trends in England and Wales 1971-1995: deprivation and NHS Region Series SMPS No. 61 1999, The Stationery Office, London.
42. Schillinger J.A., Grosclaude P.C., Honjo S., et al. Survival after acute lymphocytic leukaemia: effects of socioeconomic status and geographic region. Archives of Disease in Childhood 1999, 80:311-317.
43. Supramaniam R., Smith D., Coates M., et al. Breast cancer survival in NSW in 1973 to 1995. Cancer Epidemiology Research Unit and NSW Central Cancer Registry Cancer Control Information Centre 1998, NSW Cancer Council, Sydney.
44. Berrino F., Capocaccia R., Coleman M.P., et al. Survival of cancer patients in Europe: the EUROCARE-3 study. Annals of Oncology 2003, 14(Suppl. 5):v1-v155.
45. Sant M., Allemani C., Capocaccia R., et al. Stage at diagnosis is a key explanation of differences in breast cancer survival across Europe. International Journal of Cancer 2003, 106:416-422.
46. Ciccolallo L., Capocaccia R., Coleman M.P., et al. Survival differences between European and US patients with colorectal cancer: role of stage at diagnosis and surgery. Gut 2005, 54:268-273.
47. O'Malley C.D., Le G.M., Glaser S.L., et al. Socioeconomic status and breast carcinoma survival in four racial/ethnic groups: a population-based study. Cancer 2003, 97:1303-1311.
48. Roetzheim R.G., Pal N., Gonzalez E.C., et al. Effects of health insurance and race on colorectal cancer treatments and outcomes. American Journal of Public Health 2000, 90:1746-1754.
49. Baquet C.R., Commiskey P. Socioeconomic factors and breast carcinoma in multicultural women. Cancer 2000, 88:1256-1264.
50. Prout G.R., Wesley M.N., McCarron P.G., et al. Survival experience of black patients and white patients with bladder carcinoma. Cancer 2004, 100:621-630.
51. Egeberg R., Halkjaer J., Rottmann N., Hansen L., Holten I. Social inequality and incidence of and survival from cancers of the colon and rectum in a population-based study in Denmark, 1994-2003. European Journal of Cancer 2008, 44:1978-1988.
52. Wrigley H., Roderick P., George S., et al. Inequalities in survival from colorectal cancer: a comparison of the impact of deprivation, treatment, and host factors on observed and cause specific survival. Journal of Epidemiology and Community Health 2003, 57:301-309.
53. Campbell N.C., Elliott A.M., Sharp L., Ritchie L.D., Cassidy J., Little J. Rural and urban differences in stage at diagnosis of colorectal and lung cancers. British Journal of Cancer 2001, 84(7):910-914.
54. Bradley C.J., Given C.W., Roberts C. Disparities in cancer diagnosis and survival. Cancer 2001, 91(1):178-188.
55. Polednak A.P. Poverty, comorbidity, and survival of colorectal cancer patients diagnosed in Connecticut. Journal of Health Care for the Poor and Underserved 2001, 12(3):302-310.
56. Hole D.J., McArdle C.S. Impact of socioeconomic deprivation on outcome after surgery for colorectal cancer. British Journal of Surgery 2002, 89(5):586-590.
57. Schwartz K.L., Crossley-May H., Vigneau F.D., Brown K., Banerjee M. Race, socioeconomic status and stage at diagnosis for five common malignancies. Cancer Causes and Control 2003, 14(8):761-766.
58. Munro A.J., Bentley A.H. Deprivation, comorbidity and survival in a cohort of patients with colorectal cancer. European Journal of Cancer Care 2004, 13(3):254-262.
59. Villingshøj M., Ross L., Thomsen B.L., Johansen C. Does marital status and altered contact with the social network predict colorectal cancer survival?. European Journal of Cancer 2006, 42(17):3022-3027.
60. Parikh-Patel A., Bates J.H., Campleman S. Colorectal cancer stage at diagnosis by socioeconomic and urban/rural status in California, 1988-2000. Cancer 2006, 107:1189-1195.
61. Wu X., Cokkinides V., Chen V.W., et al. Associations of subsite-specific colorectal cancer incidence rates and stage of disease at diagnosis with county-level poverty, by race and sex. Cancer 2006, 107:1121-1127.
62. Clegg L.X., Reichman M.E., Miller B.A., et al. Impact of socioeconomic status on cancer incidence and stage at diagnosis: selected findings from the surveillance, epidemiology, and end results: National Longitudinal Mortality Study. Cancer Causes and Control 2009, 20:417-435.
63. Yabroff K.R., Gordis L. Does stage at diagnosis influence the observed relationship between socioeconomic status and breast cancer incidence, case fatality, and mortality?. Social Science and Medicine 2003, 57:2265-2279.
64. Auvinen A., Karjalainen S. Possible explanations for social class differences in cancer patient survival. Social Inequalities and cancer 1997, 377-439. IARC Scientific Publications No. 138, IARC, Lyon. M. Kogevinas, N. Pearce, M. Susser, P. Boffetta (Eds.).
65. Macleod U., Ross S., Gillis C., McConnachie A., Twelves C., Watt G.C. Socio-economic deprivation and stage of disease at presentation in women with breast cancer. Annals of Oncology 2000, 11(1):105-107.
66. McGinnis L.S., Menck H.R., Eyre H.J., et al. National Cancer Data Base survey of breast cancer management for patients from low income zip codes. Cancer 2000, 88(4):933-945.
67. Polednak A.P. Survival of breast cancer patients in Connecticut in relation to socio-economic and health care access indicators. Journal of Urban Health 2002, 79(2):211-218.
68. Osborne C., Ostir G.V., Du X., Peek M.K., Goodwin J.S. The influence of marital status on the stage at diagnosis, treatment, and survival of older women with breast cancer. Breast Cancer Research and Treatment 2005, 93(1):41-47.
69. Rutqvist L.E., Bern A. Socioeconomic gradients in clinical stage at presentation and survival among breast cancer patients in the Stockholm area 1977-1997. International Journal of Cancer 2006, 119(6):1433-1439. Stockholm Breast Cancer Study Group.
70. Bouchardy C., Verkooijen H.M., Fioretta G. Social class is an important and independent prognostic factor of breast cancer mortality. International Journal of Cancer 2006, 119(5):1145-1151.
71. MacKinnon J.A., Duncan R.C., Huang Y., et al. Detecting an association between socioeconomic status and late stage breast cancer using spatial analysis and area-based measures. Cancer Epidemiology, Biomarkers and Prevention 2007, 16(4):756-762.
72. Reyes-Ortiz C.A., Goodwin J.S., Freeman J.L., Kuo Y.F. Socioeconomic status and survival in older patients with melanoma. Journal of the American Geriatrics Society 2006, 54(11):1758-1764.
73. Reyes Ortiz C.A., Freeman J.L., Kuo Y.F., Goodwin J.S. The influence of marital status on stage at diagnosis and survival of older persons with melanoma. Journals of Gerontology. Series A, Biological Sciences and Medical Sciences 2007, 62(8):892-898.
74. Stitzenberg K.B., Thomas N.E., Dalton K., et al. Distance to diagnosing provider as a measure of access for patients with melanoma. Archives of Dermatology 2007, 143(8):991-998.
75. Singh G.K., Miller B.A., Hankey B.F., Edwards B.K. Persistent area socioeconomic disparities in U.S. incidence of cervical cancer, mortality, stage, and survival, 1975-2000. Cancer 2004, 101(5):1051-1057.
76. Liu L., Cozen W., Bernstein L., Ross R.K., Deapen D. Changing relationship between socioeconomic status and prostate cancer incidence. Journal of the National Cancer Institute 2001, 93(9):705-709.
77. Konski A., Berkey B.A., Kian Ang K., Fu K.K. Effect of education level on outcome of patients treated on Radiation Therapy Oncology Group Protocol 90-03. Cancer 2003, 98(7):1497-1503.
78. Paterson I.C., John G., Adams J.D. Effect of deprivation on survival of patients with head and neck cancer: a study of 20,131 cases. Clinical Oncology (Royal College of Radiologists) 2002, 14:455-458.
79. Groome P.A., Schulze K.M., Keller S., et al. Explaining socioeconomic status effects in laryngeal cancer. Clinical Oncology (Royal College of Radiologists) 2006, 18(4):283-292.
80. Gore J.L., Kwan L., Saigal C.S., Litwin M.S. Marriage and mortality in bladder carcinoma. Cancer 2005, 104(6):1188-1194.
81. Chang S.M., Barker F.G. Marital status, treatment, and survival in patients with glioblastoma multiforme: a population based study. Cancer 2005, 104(9):1975-1984.
82. Kaffashian F., Godward S., Davies T., et al. Socioeconomic effects on breast cancer survival: proportion attributable to stage and morphology. British Journal of Cancer 2003, 89:1693-1696.
83. Schrijvers C.T., Mackenbach J.P., Lutz J.M., et al. Deprivation and survival from breast cancer. British Journal of Cancer 1995, 72:738-743.
84. Gakidou E., Nordhagen S., Obermeyer Z. Coverage of cervical cancer screening in 57 countries: low average levels and large inequalities. PLoS Medicine 2008, 17:e132.
85. Moser K., Patnick J., Beral V. Inequalities in reported use of breast and cervical screening in Great Britain: analysis of cross sectional survey data. British Medical Journal 2009, 338:b2025.
86. Challier B., Meslans Y., Viel J.F. Deprived areas and attendance to screening of cervix uteri cancer in a French region. Cancer Causes and Control 2000, 11(2):157-162.
87. Zackrisson S., Andersson I., Manjer J., Janzon L. Non-attendance in breast cancer screening is associated with unfavourable socio-economic circumstances and advanced carcinoma. International Journal of Cancer 2004, 108(5):754-760.
88. Schenck A.P., Peacock S.C., Klabunde C.N., Lapin P., Coan J.F., Brown M.L. Trends in colorectal cancer test use in the medicare population, 1998-2005. American Journal of Preventive Medicine 2009, 37(1):1-7.
89. Singh S.M., Paszat L.F., Li C., He J., Vinden C., Rabeneck L. Association of socioeconomic status and receipt of colorectal cancer investigations: a population-based retrospective cohort study. CMAJ: Canadian Medical Association Journal 2004, 171(5):461-465.
90. Spadea T., Bellini S., Kunst A., Stirbu I., Costa G. The impact of intervention to improve attendance in female cancer screening among lower socioeconomic groups: a review. Preventive Medicine 2010, 50:159-164.
91. Puliti D., Miccinesi G., Manneschi G., et al. Does an organised screening programme reduce the inequalities in breast cancer survival?. Annals of Oncology 2011, April. [Epub ahead of print].
92. Schrijvers C.T., Coebergh J.W., Mackenbach J.P. Socioeconomic status and comorbidity among newly diagnosed cancer patients. Cancer 1997, 80:1482-1488.
93. Dalton S.O., Ross L., Düring M., et al. Influence of socioeconomic factors on survival after breast cancer-a nationwide cohort study of women diagnosed with breast cancer in Denmark 1983-1999. International Journal of Cancer 2007, 121(11):2524-2531.
94. Sant M., Francisci S., Capocaccia R., Verdecchia A., Allemani C., Berrino F. Time trends of breast cancer survival in Europe in relation to incidence and mortality. International Journal of Cancer 2006, 119:2417-2422.
95. Berry D.A., Cronin K.A., Plevritis S.K., et al. Effect of screening and adjuvant therapy on mortality from breast cancer. New England Journal of Medicine 2005, 353:1784-1792.
96. Pollock A.M., Vickers N. Deprivation and emergency admissions for cancers of colorectum, lung, and breast in south east England: ecological study. British Medical Journal 1998, 317:245-252.
97. Thomson C.S., Hole D.J., Twelves C.J., Brewster D.H., Black R.J. Scottish Cancer Therapy Network Prognostic factors in women with breast cancer: distribution by socio-economic status and effect on differences in survival. Journal of Epidemiology and Community Health 2001, 55(5):308-315.
98. Montella M., Crispo A., Botti G., et al. An assessment of delays in obtaining definitive breast cancer treatment in Southern Italy. Breast Cancer Research and Treatment 2001, 66(3):209-215.
99. Quaglia A., Lillini R., Casella C., Giachero G., Izzotti A., Vercelli M. The combined effect of age and socio-economic status on breast cancer survival. Critical Reviews in Oncology/Hematology 2011, 77(March (3)):210-220.
100. Rapiti E., Fioretta G., Schaffar R., et al. Impact of socioeconomic status on prostate cancer diagnosis, treatment, and prognosis. Cancer 2009, 115(23):5556-5565.
101. Ou S.H., Zell J.A., Ziogas A., Anton-Culver H. Low socioeconomic status is a poor prognostic factor for survival in stage I nonsmall cell lung cancer and is independent of surgical treatment, race, and marital status. Cancer 2008, 112(May (9)):2011-2020.
102. Lyratzopoulos G., Barbiere J.M., Rachet B., Baum M., Thompson M.R., Coleman M.P. Changes over time in socioeconomic inequalities in breast and rectal cancer survival in England and Wales during a 32-year period (1973-2004): the potential role of health care. Annals of Oncology 2011, 22(7):1661-1666.
103. Herbert C., Lefevre H., Gignoux M., Launoy G. Influence of social and occupational class and area of residence on management and survival in patients with digestive tract cancer: a population study in the Calvados area (France). Revue d Epidemiologie et de Sante Publique 2002, 50:253-264.
104. Blais S., Dejardin O., Boutreux S., Launoy G. Social determinants of access to reference care centres for patients with colorectal cancer-a multilevel analysis. European Journal of Cancer 2006, 42(17):3041-3048.
105. Kingsmore D., Ssemwogerere A., Hole D., Gillis C. Specialisation and breast cancer survival in the screening era. British Journal of Cancer 2003, 88:1708-1712.
106. Kingsmore D., Hole D., Gillis C. Why does specialist treatment of breast cancer improve survival? The role of surgical management. British Journal of Cancer 2004, 90:1920-1925.
107. Stavraky K.M., Kincade J.E., Stewart M.A., Donner A.P. The effect of socioeconomic factors on the early prognosis of cancer. Journal of Chronic Diseases 1987, 40:237-244.
108. Guralnik J.M., Land K.C., Blazer D., Fillenbaun G.G., Branch L.G. Educational status and active life expectancy among older blacks and whites. New England Journal of Medicine 1993, 329:110-116.
109. Feldman J.J., Makuc D.M., Kleinman J.C., Cornoni-Huntley J. National trends in educational differentials in mortality. American Journal of Epidemiology 1988, 129:919-933.
110. Goodwin J.S., Samet J.M., Hunt W.C. Determinants of survival in older cancer patients. Journal of the National Cancer Institute 1996, 88:1031-1038.
111. Hussain S.K., Lenner P., Sundquist J., Hemminki K. Influence of education level on cancer survival in Sweden. Annals of Oncology 2008, 19:156-162.
112. Hussain S.K., Altieri A., Sundquist J. Influence of education level on breast cancer risk and survival in Sweden between 1990 and 2004. International Journal of Cancer 2008, 122:165-169.
113. Oksbjerg D.S., Steding-Jessen M., Gislum M., Frederiksen K., Engholm G., Schüz J. Social inequality and incidence of and survival from cancer in a population-based study in Denmark, 1994-2003: background, aims, material and methods. European Journal of Cancer 2008, 44:1938-1949.
114. Roberts C.S. Social support and the elderly cancer patient. Comprehensive geriatric oncology 1998, Harwood Academic Publishers, Amsterdam. L. Balducci, G.H. Lyman, W.B. Ershler (Eds.).
115. Goodwin J.S., Hunt C., Samet J. Relationship of marital status to stage at diagnosis, choice of treatment and survival in individuals with cancer. JAMA 1987, 258:3125-3130.
116. Suarez L., Lloyd L., Weiss N., Rainbolt T., Pulley L. Effect of social networks on cancer screening behavior of older Mexican-American women. Journal of the National Cancer Institute 1994, 86:775-779.
117. Ryan M.C., Austin A.G. Social support and social networks in the aged. Image 1989, 21:176-180.
118. Goodwin J.S., Hunt W.C., Samet J.M. Determinants of cancer therapy in elderly patients. Cancer 1993, 72:594-601.
119. Harvei S., Kravdal O. The importance of marital and socioeconomic status in incidence and survival of prostate cancer. An analysis of complete Norwegian birth cohorts. Preventive Medicine 1997, 26:623-632.
120. Kravdal Ø. Social inequalities in cancer survival. Population Studies 2000, 54:1-18.
121. Vercelli M., Capocaccia R., Quaglia A., Casella C., Puppo A., Coebergh J.W.W. Relative survival in elderly European cancer patients: evidence for health care inequalities. Critical Reviews in Oncology/Hematology 2000, 35:161-179. the EUROCARE Working group.
122. Quaglia A., Capocaccia R., Micheli A., Carrani E., Vercelli M., the EUROCARE-3 Working group A wide difference in cancer survival between middle aged and elderly patients in Europe. International Journal of Cancer 2007, 120:2196-2201.