Journal of Preventive Medicine and Public Health

Hoo Sun Chang

3 Articles

Association Between Socioeconomic Status and All-Cause Mortality After Breast Cancer Surgery: Nationwide Retrospective Cohort Study.: Mi Jin Park, Woojin Chung, Sunmi Lee, Jong Hyock Park, Hoo Sun Chang; J Prev Med Public Health. 2010;43(4):330-340.; DOI: https://doi.org/10.3961/jpmph.2010.43.4.330

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OBJECTIVES
This study aims to evaluate and explain the socioeconomic inequalities of all-cause mortality after breast cancer surgery in South Korea. METHODS: This population based study included all 8868 females who underwent radical mastectomy for breast cancer between January 2002 and June 2003. Follow-up for mortality continued from January 2002 to June 2006. The patients were divided into 4 socioeconomic classes according to their socioeconomic status as defined by the National Health Insurance contribution rate. The relationship between socioeconomic status and all-cause mortality after breast cancer surgery was assessed using the Cox proportional hazards model with adjusting for age, the Charlson's index score, emergency hospitalization, the type of hospital and the hospital ownership. RESULTS: Those in the lowest socioeconomic status group had a significantly higher hazard ratio of 2.09 (95% CI =1.50 - 2.91) compared with those in the highest socioeconomic group after controlling for all the identifiable confounding variables. For all-cause mortality after radical mastectomy, all the other income groups showed significantly higher 3-year mortality rates than did the highest income group. CONCLUSIONS: The socioeconomic status of breast cancer patients should be considered as an independent prognostic factor that affects all-cause mortality after radical mastectomy, and this is possibly due to a delayed diagnosis, limited access or minimal treatment leading to higher mortality. This study may provide tangible support to intensify surveillance and treatment for breast cancer among low socioeconomic class women.

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Jeffrey M Henstenburg, Alexander M Lieber, Anthony J Boniello, Yehuda E Kerbel, Mitesh Shah
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Income Disparity in Breast Cancer Incidence and Stage at Presentation: A National Population Study of South Korea
Seung-Ah Choe, Minji Roh, Hye Ri Kim, Soohyeon Lee, Myung Ki, Domyung Paek, Mia Son
Journal of Breast Cancer.2022; 25(5): 415. CrossRef
Pain-related Prescribing Patterns and Associated Factor in Breast Cancer Patients
Jin Lee, Ie Byung Park, Hwa Jeong Seo
Korean Journal of Clinical Pharmacy.2021; 31(2): 115. CrossRef
Higher breast cancer prevalence associated with higher socioeconomic status in the South Korean population; Has it resulted from overdiagnosis?
Seong-Woo Choi, So-Yeon Ryu, Mi-ah Han, Jong Park, Antonio Palazón-Bru
PLOS ONE.2018; 13(7): e0200484. CrossRef
Barriers to Cancer Care, Perceived Social Support, and Patient Navigation Services for Korean Breast Cancer Patients
Jung-won Lim
Social Work in Health Care.2015; 54(1): 47. CrossRef
Equity in health care: current situation in South Korea
Hong-Jun Cho
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Cancer Control and the Communication Innovation in South Korea: Implications for Cancer Disparities
Minsoo Jung
Asian Pacific Journal of Cancer Prevention.2013; 14(6): 3411. CrossRef
Performance of Papanicolaou Testing and Detection of Cervical Carcinoma In Situ in Participants of Organized Cervical Cancer Screening in South Korea
Mi Ah Han, Kui Son Choi, Hoo-Yeon Lee, Jae Kwan Jun, Kyu Won Jung, Sokbom Kang, Eun-Cheol Park, Konradin Metze
PLoS ONE.2012; 7(4): e35469. CrossRef

Socioeconomic Costs of Stroke in Korea: Estimated from the Korea National Health Insurance Claims Database.: Seung ji Lim, Han joong Kim, Chung mo Nam, Hoo sun Chang, Young Hwa Jang, Sera Kim, Hye Young Kang; J Prev Med Public Health. 2009;42(4):251-260.; DOI: https://doi.org/10.3961/jpmph.2009.42.4.251

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OBJECTIVES
To estimate the annual socioeconomic costs of stroke in Korea in 2005 from a societal perspective. METHODS: We identified those 20 years or older who had at least one national health insurance (NHI) claims record with a primary or a secondary diagnosis of stroke (ICD-10 codes: I60-I69, G45) in 2005. Direct medical costs of the stroke were measured from the NHI claims records. Direct non-medical costs were estimated as transportation costs incurred when visiting the hospitals. Indirect costs were defined as patients' and caregivers' productivity loss associated with office visits or hospitalization. Also, the costs of productivity loss due to premature death from stroke were calculated. RESULTS: A total of 882,143 stroke patients were identified with prevalence for treatment of stroke at 2.44%. The total cost for the treatment of stroke in the nation was estimated to be 3,737 billion Korean won (KRW) which included direct costs at 1,130 billion KRW and indirect costs at 2,606 billion KRW. The per-capita cost of stroke was 3 million KRW for men and 2 million KRW for women. The total national spending for hemorrhagic and ischemic stroke was 1,323 billion KRW and 1,553 billion KRW, respectively, which together consisted of 77.0% of the total cost for stroke. Costs per patient for hemorrhagic and ischemic stroke were estimated at 6 million KRW and 2 million KRW, respectively. CONCLUSIONS: Stroke is a leading public health problem in Korea in terms of the economic burden. The indirect costs were identified as the largest component of the overall cost.

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Suicidal ideation and attempts in patients with stroke: a population-based study
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Impact of Multiple Cardiovascular Risk Factors on the Carotid Intima-media Thickness in Young Adults: The Kangwha Study.: Hoo Sun Chang, Hyeon Chang Kim, Song Vogue Ahn, Nam Wook Hur, Il Suh; J Prev Med Public Health. 2007;40(5):411-417.; DOI: https://doi.org/10.3961/jpmph.2007.40.5.411

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Abstract PDF

OBJECTIVES
Although risk factors for coronary artery disease are also associated with increased carotid intima-media thickness (IMT), there is little information available on the asymptomatic, young adult population. We examined the association between multiple cardiovascular risk factors and the common carotid IMT in 280 young Korean adults. METHODS: The data used for this study was obtained from 280 subjects (130 men and 150 women) aged 25 years who participated in the Kangwha Study follow-up examination in 2005. We measured cardiovascular risk factors, including anthropometrics, blood pressure, blood chemistry, carotid ultrasonography, and reviewed questionnaires on health behaviors. Risk factors were defined as values above the sex-specific 75th percentile of systolic blood pressure, body mass index, total cholesterol/high-density lipoprotein cholesterol ratio, fasting blood glucose and smoking status. RESULTS: The mean carotid IMT+/-standard deviation observed was 0.683+/-0.079 mm in men and 0.678+/-0.067 mm in women (p=0.567) and the evidence of plaque was not observed in any individuals. Mean carotid IMT increased with an increasing number of risk factors(p for trend <0.001) and carotid IMT values were 0.665 mm, 0.674 mm, 0.686 mm, 0.702 mm, and 0.748 mm for 0, 1, 2, 3, and 4 to 5 risk factors, respectively. The odds ratio for having the top quartile carotid IMT in men with 3 or more risk factors versus 0-2 risk factors was 5.09 (95% CI, 2.05-12.64). CONCLUSIONS: Current findings indicate the need for prevention and control of cardiovascular risk factors in young adults and more focus on those with multiple cardiovascular risk factors.

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