Dietary consumption and diet diversity and risk of developing bladder cancer: results from the South and East China case–control study

Isa, Fatima; Xie, Liping; Hu, Zhiquan; Zhong, Zhaohui; Hemelt, Marjolein; Reulen, Raoul C.; Wong, Yong Chuan; Tam, Po‐Chor; Yang, Kai; Chai, Chao; Zeng, Xing; Deng, Yaxiong; Zhong, Weide

doi:10.1007/s10552-013-0165-5

Cited by 42 publications

(36 citation statements)

References 44 publications

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“…The study by Sacerdote et al (2007) provided two categories of exposure and was thus not included. The other 11 studies were excluded because of lack of data on person-time (Shibata et al, 1992;George et al, 2009;Grant et al, 2012), the dose (g/day) of each category (Riboli et al, 1991;La Vecchia et al, 1999;Wakai et al, 2004;Wu et al, 2012;Isa et al, 2013;Park et al, 2013) and noncases or total cases of each category (Wakai et al, 2000;Aune et al, 2009). We found a decreased bladder cancer risk of 8% for every 200 g/day increment in vegetable consumption (RR = 0.92; 95% CI: 0.87-0.97; Fig.…”

Section: Dose-response Analysismentioning

confidence: 77%

“…The remaining 57 were considered to be of potential value and the full text was reviewed for detailed evaluation. Finally, 12 cohort studies (Shibata et al, 1992;Chyou et al, 1993;Michaud et al, 1999Michaud et al, , 2002Zeegers et al, 2001;Holick et al, 2005;Sakauchi et al, 2005;Larsson et al, 2008;George et al, 2009;Grant et al, 2012;Ros et al, 2012;Park et al, 2013) and 15 case-control studies (Riboli et al, 1991;Bruemmer et al, 1996;Yu et al, 1997;La Vecchia et al, 1999;Pohlabeln et al, 1999;Wakai et al, 2000;Pelucchi et al, 2002;Wakai et al, 2004;Kellen et al, 2006;García-Closas et al, 2007;Tang et al, 2008;Aune et al, 2009;Lin et al, 2009;Wu et al, 2012;Isa et al, 2013) involving 12 417 cases and 1 766 557 participants were Table 1). The characteristics of the included cohort studies and case-control studies are summarized in Supplementary Tables 2 and 3, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Two studies provided fewer than three categories of exposure (Pohlabeln et al, 1999;Sacerdote et al, 2007) and three studies lacked data on person-time (Shibata et al, 1992;George et al, 2009;Grant et al, 2012), and thus were excluded. The other eight studies were also excluded for lack of data on dose or total cases (La Vecchia et al, 1999;Wakai et al, 2000Wakai et al, , 2004Riboli and Norat, 2003;Aune et al, 2009;Wu et al, 2012;Isa et al, 2013;Park et al, 2013). For every 200 g/day increment in fruit consumption, the risk of bladder cancer decreased by 9% (RR = 0.91; 95% CI: 0.83-0.99; Fig.…”

Section: Dose-response Analysismentioning

confidence: 99%

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Fruit and vegetable consumption and risk of bladder cancer

Liu

Wang

et al. 2015

European Journal of Cancer Prevention

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This meta-analysis was conducted to assess the association between fruit and vegetable intake and bladder cancer risk. Eligible studies published up to August 2014 were retrieved both through a computer search of PubMed, Embase and the Cochrane library and through a manual review of references. The summary relative risks with 95% confidence intervals (CIs) for the highest versus the lowest intakes of fruits and vegetables were calculated with random-effects models. Heterogeneity and publication bias were also evaluated. Potential sources of heterogeneity were detected with metaregression. Subgroup analyses and sensitivity analyses were also performed. A total of 27 studies (12 cohort and 15 case-control studies) were included in this meta-analysis. The summary relative risks for the highest versus lowest were 0.84 (95% CI: 0.72-0.96) for vegetable intake and 0.81 (95% CI: 0.73-0.89) for fruit intake. The dose-response analysis showed that the risk of bladder cancer decreased by 8% (relative risk=0.92; 95% CI: 0.87-0.97) and 9% (relative risk=0.91; 95% CI: 0.83-0.99) for every 200 g/day increment in vegetable and fruit consumption, respectively. Sensitivity analysis confirmed the stability of the results. Our findings suggest that intake of vegetables and fruits may significantly reduce the risk of bladder cancer. Further well-designed prospective studies are warranted to confirm these findings.

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Section: Dose-response Analysismentioning

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Section: Dose-response Analysismentioning

confidence: 99%

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Fruit and vegetable consumption and risk of bladder cancer

Liu

Wang

et al. 2015

European Journal of Cancer Prevention

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“…In Korea, Kim et al (33) reported significant inverse association between milk and milk products and gastric cancer risk with case-control study design, whereas Chun et al (32) reported a positive association between milk intake and colorectal cancer risk with similar study design. In China, a case-control study on bladder cancer (34) reported strong health benefits of dairy foods, and another case-control study demonstrated potential protective effects of milk intake on breast cancer (41) . In Japan, a case-control study (42) found statistically significant inverse association between calcium and vitamin C intake and colorectal cancer, and potential inverse association between milk and other dairy food intake, and colorectal cancer risk.…”

Section: Association Of Meat and Milk Consumption With Cancer And Metmentioning

confidence: 99%

Meat and milk intake in the rice-based Korean diet: impact on cancer and metabolic syndrome

Jun

Chung

et al. 2016

Proc. Nutr. Soc.

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Over a few decades, Korean diet has changed from traditional diet, mainly composed of rice and vegetables, to Westernised diet rich, in meat and milk, along with the economic development and globalisation. Increasing prevalence of diet-related chronic diseases such as cancer and metabolic syndrome (MetS) is becoming a heavy burden to society and requires further attention. In this review, the association of meat and milk consumption with cancer and MetS among Koreans was discussed. Previous meta-analyses showed that meat intake was positively associated with increased risk of cancers, especially colon, as well as obesity and type 2 diabetes mellitus, and that the intake of milk and dairy products was negatively associated with colorectal cancer, obesity, and type 2 diabetes mellitus, based on studies conducted mostly in Western countries. In Korea and other Asian countries, the association of meat and milk intake with cancers were inconclusive and varied by types of cancers. Conversely, milk intake was negatively associated with MetS risk as reported in Western countries. The difference in results between Korea and Western countries might come from the differences in dietary patterns and study designs. Most Koreans still maintain traditional dietary pattern, although rapid change towards Westernised diet is underway among the younger age group. Randomised clinical trials or prospective cohort studies with consideration of combined effects of various dietary factors in Korea and other Asian countries are needed to elucidate the impact of meat and milk or related dietary patterns in their diet.

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“…Of the 14 articles, two were population-based case-control studies (Castelao et al, 2004;Kellen et al, 2006), six were hospital-based case-control studies (Balbi et al, 2001;De Stefani et al, 2008;García-Closas et al, 2007;Isa et al, 2013;Lin et al, 2009;Sacerdote et al, 2007), and six were cohort studies (Buchner et al, 2009;Holick et al, 2005;Larsson et al, 2008;Li et al, 2010;Michaud et al, 1999;Park et al, 2013). Seven studies had been conducted in North or South America (Balbi et al, 2001;Castelao et al, 2004;De Stefani et al, 2008;Holick et al, 2005;Lin et al, 2009;Michaud et al, 1999;Park et al, 2013), five in Europe (Buchner et al, 2009;García-Closas et al, 2007;Kellen et al, 2006;Larsson et al, 2008;Sacerdote et al, 2007), and two in Asia (Isa et al, 2013;Li et al, 2010). Five studies assessed citrus fruit consumption by mailed questionnaire (Holick et al, 2005;Larsson et al, 2008;Li et al, 2010;Michaud et al, 1999;Park et al, 2013); the remainder were assessed by interview (Balbi et al, 2001;Buchner et al, 2009;Castelao et al, 2004;De Stefani et al, 2008;García-Closas et al, 2007;<...>…”

Section: Literature Searchmentioning

confidence: 99%

Citrus fruit intake and bladder cancer risk: a meta-analysis of observational studies

Liang¹,

Lv²,

Chen³

et al. 2014

International Journal of Food Sciences and Nutrition

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Epidemiological studies have investigated the association between citrus fruit and bladder cancer risk; however, the results are inconsistent. To assess these issues, we conducted a meta-analysis of currently available studies. We identified relevant articles by searching the MEDLINE and EMBASE databases. We calculated the summary relative risk (RR) with 95% confidence interval (95% CI) using a random effect model. We included eight case-control studies and six cohort studies in the meta-analysis. There was a significant inverse association between citrus fruit intake and bladder cancer risk in all pooled studies (RR: 0.85; 95% CI, 0.76-0.94) and case-control studies (RR: 0.77; 95% CI, 0.64-0.92), but not in the cohort studies (RR: 0.96; 95% CI, 0.87-1.07). Our results suggest that citrus fruit intake is related to decreased bladder cancer risk. Subsequent well-designed, large prospective studies are needed to obtain better understanding of this relationship.

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Dietary consumption and diet diversity and risk of developing bladder cancer: results from the South and East China case–control study

Abstract: Our results indicate that a diet with higher total diet diversity and in particular fruit diversity may reduce the risk of bladder cancer.

Cited by 42 publications

References 44 publications

Fruit and vegetable consumption and risk of bladder cancer

Fruit and vegetable consumption and risk of bladder cancer

Meat and milk intake in the rice-based Korean diet: impact on cancer and metabolic syndrome

Citrus fruit intake and bladder cancer risk: a meta-analysis of observational studies

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