The Relationship between Population Density and Cancer Mortality in Taiwan

Yang, Chun‐Yuh; Hsieh, Yueh‐Ling

doi:10.1111/j.1349-7006.1998.tb00571.x

Cited by 54 publications

(26 citation statements)

References 18 publications

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“…No geographic variation has been reported in surveillance [94] or survival following radical prostatectomy [95]. Urbanization has been associated with higher prostate cancer mortality [96].…”

Section: Geographymentioning

confidence: 99%

Social disparities and prostate cancer: mapping the gaps in our knowledge

Gilligan

2005

Cancer Causes Control

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To evaluate the current state of our knowledge regarding social disparities and prostate cancer and to map the domains where substantial knowledge has been acquired as well as those where little is known, with the purpose of identifying important areas for future research. A Medline research was conducted to identify published papers regarding social disparities in prostate cancer since 1990. The results of this review are presented in a social disparities and prostate cancer grid designed to highlight which domains of social disparities have been researched and which neglected. The major social disparity in prostate cancer concerns the extremely high prostate cancer incidence and mortality seen among black Americans. This is also the area where the most research has been performed. Low socioeconomic position is associated with poorer prostate cancer outcomes but not with higher prostate cancer incidence. It remains poorly defined to what extent racial/ethnic differences in prostate cancer result from differences in socioeconomic position (SEP). Understanding the causes of the high prostate cancer mortality seen among black men remains the major challenge in the area of social disparities and prostate cancer.

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Section: Geographymentioning

confidence: 99%

Social disparities and prostate cancer: mapping the gaps in our knowledge

Gilligan

2005

Cancer Causes Control

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“…We matched patients with RAS to those without RAS at a ratio of 1:1 through frequency matching. The potential cancer risk‐confounding factors of age,90 sex,91, 92 monthly insured income,93, 94 geographical region,95 and urbanization level96 were considered and matched (Table 1). As listed in Table 1, all P values were near 1, thereby demonstrating that our matching results were satisfactory and the confounding factors were controlled effectively 89.…”

Section: Discussionmentioning

confidence: 99%

Recurrent aphthous stomatitis may be a precursor or risk factor for specific cancers: A case‐control frequency‐matched study

et al. 2018

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BackgroundRecurrent aphthous stomatitis (RAS) is considered a prophase symptom in patients with specific cancers. This study assessed the association between RAS and subsequent onset of cancer based on a nationwide population‐based database in Taiwan.Materials and MethodsWe selected study participants from the National Health Insurance Research Database from January 2000 to December 2008. Patients in the non‐RAS cohort were matched to case study patients at a 1:1 ratio through frequency matching. All participants were followed up for at least 5 years, and those who received cancer diagnoses during follow‐up were identified.ResultsAmong 52 307 patients with and 52 304 patients without RAS, the combined hazard ratio (HR) of all subsequent cancer cases was 1.3 (95% confidence interval [CI]: 1.25‐1.35, P = 0). RAS diagnosis was associated with risk for cancers of the head and neck (aHR = 2, 95% CI: 1.8‐2.3), colon (aHR = 1.2, 95% CI: 1.1‐1.4), liver (aHR = 1.1, 95% CI: 1‐1.3), pancreas (aHR = 1.4, 95% CI: 1.1‐1.7), skin (aHR = 1.4, 95% CI: 1.2‐1.7), breast (aHR = 1.2, 95% CI: 1.1‐1.4), and prostate (aHR = 1.5, 95% CI: 1.3‐1.8), as well as hematologic cancers (aHR = 1.6, 95% CI: 1.3‐1.9). A higher risk was observed for male patients (aHR = 1.35, 95% CI: 1.28‐1.42) than for female patients (aHR = 1.25, 95% CI: 1.18‐1.31) with RAS.Conclusions RAS was associated with specific cancers. Susceptible RAS patients should be screened for specific cancers.

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“…In general, breast cancer mortality had been considerably higher in urban populations than non-urban ones (Blot et al, 1977;Goldsmith, 1980;Greenberg, 1983;Muir et al, 1987;Kelesy and Berkowitz, 1988;Yang and Hsieh, 1998). The only "urban factor" consistently mentioned in the literature is air pollution, suggesting that residing in an urban area is a reliable surrogate for increased air pollution exposure (Greenberg, 1983).…”

Section: Resultsmentioning

confidence: 99%

“…It was found that mortality attributed to cancer was associated with urbanization gradients (Yang and Hsieh, 1998;Reynolds et al, 2004a;Hall et al, 2005). In this study, an urbanization index (Tzeng and Wu, 1986) was used to adjust for possible confounding resulting from different urbanizational levels among the municipalities.…”

Section: Socioeconomic Factorsmentioning

confidence: 99%

Traffic Air Pollution and Risk of Death from Breast Cancer in Taiwan: Fine Particulate Matter (PM2.5) as a Proxy Marker

Hung

Tsai

Chen

et al. 2012

Aerosol Air Qual. Res.

Self Cite

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The relationship between breast cancer mortality and air pollution was examined using an ecological design. The study areas consisted of 61 municipalities in Taiwan. Air quality data for recorded concentrations of fine particulate matter (PM 2.5 ) from study municipalities for 2006-2009 were obtained as a marker of traffic emissions and were used as a proxy for polycyclic aromatic hydrocarbons (PAHs) exposure. Age-standardized mortality rates for breast cancer mortality were calculated for the study municipalities for the years 1999-2008. A weighted multiple regression model was used to calculate the adjusted risk ratio in relation to PM 2.5 levels. Results showed that individuals who resided in municipalities with the highest PM 2.5 were at an increased risk of death from breast cancer. This study is the first to suggest that exposure to high levels of PM 2.5 , a proxy measure of PAHs, may be associated with an increased risk of death from breast cancer. The findings of this study warrant further investigation into the role of air pollutants in the risk of breast cancer.

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The Relationship between Population Density and Cancer Mortality in Taiwan

Cited by 54 publications

References 18 publications

Social disparities and prostate cancer: mapping the gaps in our knowledge

Social disparities and prostate cancer: mapping the gaps in our knowledge

Recurrent aphthous stomatitis may be a precursor or risk factor for specific cancers: A case‐control frequency‐matched study

Traffic Air Pollution and Risk of Death from Breast Cancer in Taiwan: Fine Particulate Matter (PM2.5) as a Proxy Marker

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