Occupational Class and Cancer Survival in Korean Men: Follow-Up Study of Nation-Wide Working Population
Abstract
:1. Introduction
2. Materials and Methods
2.1. Data Source and Study Population
2.2. Calculation of Survival
2.3. Occupational Class
2.4. Statistical Analysis
2.5. Ethics Statement
3. Results
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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N | % | |
---|---|---|
Age of Diagnosis | ||
<20 | 42 | 0.0 |
20–29 | 2,156 | 1.6 |
30–39 | 13,590 | 10.1 |
40–49 | 31,780 | 23.7 |
50–59 | 46,729 | 34.8 |
60– | 40,087 | 29.8 |
Year of diagnosis | ||
1995–1999 | 19,804 | 14.7 |
2000–2004 | 49,771 | 37.0 |
2005–2008 | 64,820 | 48.2 |
Occupational group | ||
Group 1 (Professionals and managers) | 28,198 | 21.0 |
Group 2 (Clerks) | 23,937 | 17.8 |
Group 3 (Service and sales workers) | 8,152 | 6.1 |
Group 4 (blue-collar workers) | 74,097 | 55.1 |
Vital status | ||
Alive | 70,117 | 52.2 |
Dead | 64,267 | 47.8 |
cause of death: cancer | 58,332 | (90.8) |
cause of death: non-cancer | 3,037 | (4.7) |
cause of death: undefined | 2,898 | (4.5) |
Total | 134,384 | 100.0 |
Site of Cancer | N | % |
---|---|---|
All cancer (C00–C97) | 134,384 | 100.0 |
Lip, oral cavity and pharynx (C00–C14) | 3142 | 2.3 |
Esophagus (C15) | 2192 | 1.6 |
Stomach (C16) | 32,524 | 24.2 |
Colon, rectosigmoid junction, rectum (C18–C20) | 18,361 | 13.7 |
Liver and intrahepatic bile ducts (C22) | 23,170 | 17.2 |
Gallbladder, other and unspecified parts of biliary tract (C23–C24) | 2632 | 2.0 |
Pancreas (C25) | 3068 | 2.3 |
Larynx (C32) | 1496 | 1.1 |
Trachea, bronchus and lung (C33–C34) | 14,423 | 10.7 |
Mesothelioma (C45) | 92 | 0.1 |
Breast (C50) | 102 | 0.1 |
Prostate (C61) | 3403 | 2.5 |
Testis (C62) | 443 | 0.3 |
Kidney (C64) | 3746 | 2.8 |
Bladder (C67) | 3329 | 2.5 |
Brain and other parts of central nervous system (C70–C72) | 1775 | 1.3 |
Thyroid gland (C73) | 6059 | 4.5 |
Hodgkin lymphoma (C81) | 264 | 0.2 |
Non-Hodgkin lymphoma (C82–C85, C96) | 3706 | 2.8 |
Multiple myeloma (C90) | 701 | 0.5 |
Leukemia (C91–C95) | 2748 | 2.0 |
Adjusted HR | 95% CI | ||
---|---|---|---|
All cancer (C00–C97) | Group 1 | Reference | |
Group 2 | 1.05 | 1.02–1.08 | |
Group 3 | 1.38 | 1.33–1.43 | |
Group 4 | 1.45 | 1.42–1.48 | |
Lip, oral cavity and pharynx (C00-C14) | Group 1 | Reference | |
Group 2 | 1.20 | 0.97–1.49 | |
Group 3 | 1.89 | 1.47–2.42 | |
Group 4 | 1.78 | 1.51–2.10 | |
Esophagus (C15) | Group 1 | Reference | |
Group 2 | 1.14 | 0.91–1.41 | |
Group 3 | 1.24 | 0.94–1.61 | |
Group 4 | 1.29 | 1.11–1.51 | |
Stomach (C16) | Group 1 | Reference | |
Group 2 | 1.01 | 0.95–1.09 | |
Group 3 | 1.35 | 1.23–1.47 | |
Group 4 | 1.31 | 1.24–1.38 | |
Colon, rectosigmoid junction, rectum (C18–C20) | Group 1 | Reference | |
Group 2 | 1.15 | 1.05–1.27 | |
Group 3 | 1.39 | 1.22–1.57 | |
Group 4 | 1.37 | 1.27–1.47 | |
Liver and intrahepatic bile ducts (C22) | Group 1 | Reference | |
Group 2 | 1.06 | 1.01–1.12 | |
Group 3 | 1.36 | 1.26–1.46 | |
Group 4 | 1.44 | 1.38–1.50 | |
Gallbladder, other and unspecified parts of biliary tract (C23–C24) | Group 1 | Reference | |
Group 2 | 1.14 | 0.96–1.36 | |
Group 3 | 1.18 | 0.93–1.47 | |
Group 4 | 1.26 | 1.11–1.44 | |
Pancreas (C25) | Group 1 | Reference | |
Group 2 | 1.04 | 0.91–1.19 | |
Group 3 | 1.23 | 1.03–1.46 | |
Group 4 | 1.18 | 1.06–1.30 | |
Larynx (C32) | Group 1 | Reference | |
Group 2 | 0.94 | 0.57–1.55 | |
Group 3 | 1.66 | 0.96–2.78 | |
Group 4 | 1.84 | 1.33–2.60 | |
Trachea, bronchus and lung (C33–C34) | Group 1 | Reference | |
Group 2 | 1.10 | 1.02–1.19 | |
Group 3 | 1.21 | 1.10–1.33 | |
Group 4 | 1.26 | 1.19–1.33 | |
Prostate (C61) | Group 1 | Reference | |
Group 2 | 1.25 | 0.89–1.74 | |
Group 3 | 2.26 | 1.39–3.52 | |
Group 4 | 2.35 | 1.85–3.02 | |
Kidney (C64) | Group 1 | Reference | |
Group 2 | 0.98 | 0.77–1.24 | |
Group 3 | 1.19 | 0.84–1.65 | |
Group 4 | 1.53 | 1.28–1.85 | |
Bladder (C67) | Group 1 | Reference | |
Group 2 | 1.04 | 0.76–1.42 | |
Group 3 | 1.18 | 0.75–1.81 | |
Group 4 | 1.26 | 1.01–1.60 | |
Brain and other parts of central nervous system (C70–C72) | Group 1 | Reference | |
Group 2 | 1.04 | 0.85–1.27 | |
Group 3 | 1.11 | 0.84–1.45 | |
Group 4 | 1.22 | 1.04–1.45 | |
Thyroid gland (C73) | Group 1 | Reference | |
Group 2 | 1.07 | 0.63–1.79 | |
Group 3 | 2.59 | 1.25–4.98 | |
Group 4 | 1.43 | 0.94–2.20 | |
Non-Hodgkin lymphoma (C82–C85,C96) | Group 1 | Reference | |
Group 2 | 1.08 | 0.90–1.29 | |
Group 3 | 1.46 | 1.15–1.84 | |
Group 4 | 1.46 | 1.27–1.68 | |
Leukemia (C91–C95) | Group 1 | Reference | |
Group 2 | 1.04 | 0.89–1.23 | |
Group 3 | 1.03 | 0.82–1.27 | |
Group 4 | 1.32 | 1.16–1.50 |
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Lee, H.-E.; Zaitsu, M.; Kim, E.-A.; Kawachi, I. Occupational Class and Cancer Survival in Korean Men: Follow-Up Study of Nation-Wide Working Population. Int. J. Environ. Res. Public Health 2020, 17, 303. https://doi.org/10.3390/ijerph17010303
Lee H-E, Zaitsu M, Kim E-A, Kawachi I. Occupational Class and Cancer Survival in Korean Men: Follow-Up Study of Nation-Wide Working Population. International Journal of Environmental Research and Public Health. 2020; 17(1):303. https://doi.org/10.3390/ijerph17010303
Chicago/Turabian StyleLee, Hye-Eun, Masayoshi Zaitsu, Eun-A Kim, and Ichiro Kawachi. 2020. "Occupational Class and Cancer Survival in Korean Men: Follow-Up Study of Nation-Wide Working Population" International Journal of Environmental Research and Public Health 17, no. 1: 303. https://doi.org/10.3390/ijerph17010303