Dietary intake of fiber, fruit and vegetables decreases the risk of incident kidney stones in women: a Women's Health Initiative report.

MedStar author(s):
Citation: Journal of Urology. 192(6):1694-9, 2014 Dec.PMID: 24859445Institution: MedStar Health Research InstituteForm of publication: Journal ArticleMedline article type(s): Journal Article | Multicenter Study | Observational Study | Research Support, N.I.H., ExtramuralSubject headings: *Diet | *Dietary Fiber | *Fruit | *Kidney Calculi/ep [Epidemiology] | *Kidney Calculi/pc [Prevention & Control] | *Vegetables | Female | Humans | Longitudinal Studies | Middle Aged | Prospective Studies | Recurrence | Risk Assessment | Women's HealthYear: 2014Local holdings: Available online from MWHC library: 1995 - present, Available in print through MWHC library: 1999 - 2006ISSN:
  • 0022-5347
Name of journal: The Journal of urologyAbstract: CONCLUSIONS: Greater dietary intake of fiber, fruits and vegetables was associated with a reduced risk of incident kidney stones in postmenopausal women. The protective effects were independent of other known risk factors for kidney stones. In contrast, there was no reduction in risk in women with a history of stones.Copyright � 2014 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.MATERIALS AND METHODS: Overall 83,922 postmenopausal women from the Women's Health Initiative observational study were included in the analysis and followed prospectively. Cox proportional hazards regression analyses were used to evaluate the associations between total dietary fiber, fruit and vegetable intake, and the risk of incident kidney stone formation, adjusting for nephrolithiasis risk factors (age, race/ethnicity, geographic region, diabetes mellitus, calcium supplementation, hormone therapy use, body mass index and calibrated caloric intake; and dietary water, sodium, animal protein and calcium intake). Women with a history of kidney stones (3,471) were analyzed separately.PURPOSE: We evaluated the relationship between dietary fiber, fruit and vegetable intake, and the risk of kidney stone formation.RESULTS: Mean age of the women was 64+/-7 years, 85% were white and 2,937 (3.5%) experienced a kidney stone in a median followup of 8 years. In women with no history of kidney stones higher total dietary fiber (6% to 26% decreased risk, p <0.001), greater fruit intake (12% to 25% decreased risk, p <0.001) and greater vegetable intake (9% to 22% decreased risk, p=0.002) were associated with a decreased risk of incident kidney stone formation in separate adjusted models. In women with a history of stones there were no significant protective effects of fiber, fruit or vegetable intake on the risk of kidney stone recurrence.All authors: Chi T, Hou L, Hsi RS, Kahn AJ, Shara N, Sorensen MD, Stoller ML, Wactawski-Wende J, Wang H, Women's Health Initiative Writing GroupFiscal year: FY2015Digital Object Identifier: Date added to catalog: 2016-01-13
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Item type Current library Collection Call number Status Date due Barcode
Journal Article MedStar Authors Catalog Article 24859445 Available 24859445

Available online from MWHC library: 1995 - present, Available in print through MWHC library: 1999 - 2006

CONCLUSIONS: Greater dietary intake of fiber, fruits and vegetables was associated with a reduced risk of incident kidney stones in postmenopausal women. The protective effects were independent of other known risk factors for kidney stones. In contrast, there was no reduction in risk in women with a history of stones.Copyright � 2014 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.

MATERIALS AND METHODS: Overall 83,922 postmenopausal women from the Women's Health Initiative observational study were included in the analysis and followed prospectively. Cox proportional hazards regression analyses were used to evaluate the associations between total dietary fiber, fruit and vegetable intake, and the risk of incident kidney stone formation, adjusting for nephrolithiasis risk factors (age, race/ethnicity, geographic region, diabetes mellitus, calcium supplementation, hormone therapy use, body mass index and calibrated caloric intake; and dietary water, sodium, animal protein and calcium intake). Women with a history of kidney stones (3,471) were analyzed separately.

PURPOSE: We evaluated the relationship between dietary fiber, fruit and vegetable intake, and the risk of kidney stone formation.

RESULTS: Mean age of the women was 64+/-7 years, 85% were white and 2,937 (3.5%) experienced a kidney stone in a median followup of 8 years. In women with no history of kidney stones higher total dietary fiber (6% to 26% decreased risk, p <0.001), greater fruit intake (12% to 25% decreased risk, p <0.001) and greater vegetable intake (9% to 22% decreased risk, p=0.002) were associated with a decreased risk of incident kidney stone formation in separate adjusted models. In women with a history of stones there were no significant protective effects of fiber, fruit or vegetable intake on the risk of kidney stone recurrence.

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