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Article: Dietary fiber intake from fresh and preserved food and risk of nasopharyngeal carcinoma: observational evidence from a Chinese population

TitleDietary fiber intake from fresh and preserved food and risk of nasopharyngeal carcinoma: observational evidence from a Chinese population
Authors
KeywordsDietary fiber
Fresh vegetable and fruit
Soybean product
Preserved food
Epstein-Barr virus
Issue Date2021
PublisherBioMed Central Ltd. The Journal's web site is located at http://www.nutritionj.com
Citation
Nutrition Journal, 2021, v. 20 n. 1, p. article no. 14 How to Cite?
AbstractBackground: The role of dietary fiber intake on risk of nasopharyngeal carcinoma (NPC) remains unclear. We examined the associations of dietary fiber intake on the risk of NPC adjusting for a comprehensive list of potential confounders. Methods: Using data from a multicenter case-control study, we included 815 histologically confirmed NPC incident cases and 1502 controls in Hong Kong, China recruited in 2014–2017. Odds ratios (ORs) of NPC (cases vs controls) for dietary fiber intake from different sources at different life periods (age 13–18, age 19–30, and 10 years before recruitment) were evaluated using unconditional logistic regression, adjusting for sex, age, socioeconomic status, smoking and drinking status, occupational hazards, family history of cancer, salted fish, and total energy intake in Model 1, Epstein-Barr virus viral capsid antigen serological status in Model 2, and duration of sun exposure and circulating 25-hydroxyvitamin D in Model 3. Results: Higher intake of total dietary fiber 10 years before recruitment was significantly associated with decreased NPC risk, with demonstrable dose-response relationship (P-values for trend = 0.001, 0.020 and 0.024 in Models 1–3, respectively). The adjusted ORs (95% CI) in the highest versus the lowest quartile were 0.51 (0.38–0.69) in Model 1, 0.48 (0.33–0.69) in Model 2, and 0.48 (0.33–0.70) in Model 3. However, the association was less clear after adjustment of other potential confounders (e.g. EBV) in the two younger periods (age of 13–18 and 19–30 years). Risks of NPC were significantly lower for dietary fiber intake from fresh vegetables and fruits and soybean products over all three periods, with dose-response relationships observed in all Models (P-values for trend for age 13–18, age 19–30 and 10 years before recruitment were, respectively, 0.002, 0.009 and 0.001 for Model1; 0.020, 0.031 and 0.003 for Model 2; and 0.022, 0.037 and 0.004 for Model 3). No clear association of NPC risk with dietary fiber intake from preserved vegetables, fruits and condiments was observed. Conclusion: Our study has shown the protective role of dietary fiber from fresh food items in NPC risk, but no association for total dietary fiber intake was observed, probably because total intake also included intake of preserved food. Further studies with detailed dietary information and in prospective settings are needed to confirm this finding, and to explore the possible underlying biological mechanisms.
Persistent Identifierhttp://hdl.handle.net/10722/296384
ISSN
2023 Impact Factor: 4.4
2023 SCImago Journal Rankings: 1.288
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMai, ZM-
dc.contributor.authorNgan, RKC-
dc.contributor.authorKwong, DLW-
dc.contributor.authorNg, WT-
dc.contributor.authorYuen, KT-
dc.contributor.authorIp, DKM-
dc.contributor.authorChan, YH-
dc.contributor.authorLee, AWM-
dc.contributor.authorHo, SY-
dc.contributor.authorLung, ML-
dc.contributor.authorLam, TH-
dc.date.accessioned2021-02-22T04:54:31Z-
dc.date.available2021-02-22T04:54:31Z-
dc.date.issued2021-
dc.identifier.citationNutrition Journal, 2021, v. 20 n. 1, p. article no. 14-
dc.identifier.issn1475-2891-
dc.identifier.urihttp://hdl.handle.net/10722/296384-
dc.description.abstractBackground: The role of dietary fiber intake on risk of nasopharyngeal carcinoma (NPC) remains unclear. We examined the associations of dietary fiber intake on the risk of NPC adjusting for a comprehensive list of potential confounders. Methods: Using data from a multicenter case-control study, we included 815 histologically confirmed NPC incident cases and 1502 controls in Hong Kong, China recruited in 2014–2017. Odds ratios (ORs) of NPC (cases vs controls) for dietary fiber intake from different sources at different life periods (age 13–18, age 19–30, and 10 years before recruitment) were evaluated using unconditional logistic regression, adjusting for sex, age, socioeconomic status, smoking and drinking status, occupational hazards, family history of cancer, salted fish, and total energy intake in Model 1, Epstein-Barr virus viral capsid antigen serological status in Model 2, and duration of sun exposure and circulating 25-hydroxyvitamin D in Model 3. Results: Higher intake of total dietary fiber 10 years before recruitment was significantly associated with decreased NPC risk, with demonstrable dose-response relationship (P-values for trend = 0.001, 0.020 and 0.024 in Models 1–3, respectively). The adjusted ORs (95% CI) in the highest versus the lowest quartile were 0.51 (0.38–0.69) in Model 1, 0.48 (0.33–0.69) in Model 2, and 0.48 (0.33–0.70) in Model 3. However, the association was less clear after adjustment of other potential confounders (e.g. EBV) in the two younger periods (age of 13–18 and 19–30 years). Risks of NPC were significantly lower for dietary fiber intake from fresh vegetables and fruits and soybean products over all three periods, with dose-response relationships observed in all Models (P-values for trend for age 13–18, age 19–30 and 10 years before recruitment were, respectively, 0.002, 0.009 and 0.001 for Model1; 0.020, 0.031 and 0.003 for Model 2; and 0.022, 0.037 and 0.004 for Model 3). No clear association of NPC risk with dietary fiber intake from preserved vegetables, fruits and condiments was observed. Conclusion: Our study has shown the protective role of dietary fiber from fresh food items in NPC risk, but no association for total dietary fiber intake was observed, probably because total intake also included intake of preserved food. Further studies with detailed dietary information and in prospective settings are needed to confirm this finding, and to explore the possible underlying biological mechanisms.-
dc.languageeng-
dc.publisherBioMed Central Ltd. The Journal's web site is located at http://www.nutritionj.com-
dc.relation.ispartofNutrition Journal-
dc.rightsNutrition Journal. Copyright © BioMed Central Ltd.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectDietary fiber-
dc.subjectFresh vegetable and fruit-
dc.subjectSoybean product-
dc.subjectPreserved food-
dc.subjectEpstein-Barr virus-
dc.titleDietary fiber intake from fresh and preserved food and risk of nasopharyngeal carcinoma: observational evidence from a Chinese population-
dc.typeArticle-
dc.identifier.emailNgan, RKC: rkcngan@hku.hk-
dc.identifier.emailKwong, DLW: dlwkwong@hku.hk-
dc.identifier.emailNg, WT: ngwt1@hkucc.hku.hk-
dc.identifier.emailYuen, KT: ktyuen@hkucc.hku.hk-
dc.identifier.emailIp, DKM: dkmip@hku.hk-
dc.identifier.emailLee, AWM: awmlee@hkucc.hku.hk-
dc.identifier.emailHo, SY: syho@hku.hk-
dc.identifier.emailLung, ML: mlilung@hku.hk-
dc.identifier.emailLam, TH: hrmrlth@hkucc.hku.hk-
dc.identifier.authorityNgan, RKC=rp02371-
dc.identifier.authorityKwong, DLW=rp00414-
dc.identifier.authorityNg, WT=rp02671-
dc.identifier.authorityIp, DKM=rp00256-
dc.identifier.authorityLee, AWM=rp02056-
dc.identifier.authorityHo, SY=rp00427-
dc.identifier.authorityLung, ML=rp00300-
dc.identifier.authorityLam, TH=rp00326-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1186/s12937-021-00667-8-
dc.identifier.pmid33531022-
dc.identifier.pmcidPMC7856716-
dc.identifier.scopuseid_2-s2.0-85100381585-
dc.identifier.hkuros321286-
dc.identifier.volume20-
dc.identifier.issue1-
dc.identifier.spagearticle no. 14-
dc.identifier.epagearticle no. 14-
dc.identifier.isiWOS:000614051000001-
dc.publisher.placeUnited Kingdom-

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