The journal of nutrition, health & aging

, Volume 17, Issue 10, pp 866–874

The association of a priori and a posterior dietary patterns with the risk of incident stroke in Chinese older people in Hong Kong

Article

DOI: 10.1007/s12603-013-0334-y

Cite this article as:
Chan, R., Chan, D. & Woo, J. J Nutr Health Aging (2013) 17: 866. doi:10.1007/s12603-013-0334-y

Abstract

Background

Dietary patterns can be identified by a priori and a posterior approaches. Limited data have related dietary patterns with stroke risk in Chinese population. This study examined stroke risk associated with patterns identified by both approaches.

Methods

Data on 1,338 Chinese men and 1,397 Chinese women aged >= 65 years participating in a cohort study examining the risk factors for osteoporosis in Hong Kong were analyzed. Baseline dietary data were collected between 2001 and 2003 using a validated food frequency questionnaire. Adherence to a priori dietary patterns including the Mediterranean Diet Score (MDS) and the Dietary Approaches to Stop Hypertension (DASH) was assessed. Factor analysis (FA) identified three a posterior dietary patterns: “vegetables-fruits”, “snacks-drinks-milk products”, and “meat-fish”. Data on incidence of stroke were retrieved from an official database in 2008. Cox regression was used to estimate hazard ratios (HRs) for stroke risk adjusted for potential confounders.

Results

There were 156 incident stroke events during a median follow up of 5.7 years. A posterior dietary patterns derived by FA were not associated with risk of incident stroke in either men or women. MDS was inversely associated with risk of incident stroke [Adjusted HR=0.55 (95% CI: 0.31–0.99) of the highest level of MDS compared with the lowest level, ptrend=0.008] in men but not in women. Similar non-significant inverse association was observed between DASH accordance and stroke risk in men [Multivariate HR (95% CI) of the DASH score of >=4.5 = 0.62 (0.38–1.04) compared with the DASH score of <=4, ptrend = 0.068] but not in women.

Conclusion

Our findings suggest that higher MDS and possibly higher DASH scores were associated with lower stroke risk in Chinese older people in Hong Kong.

Key words

Dietary patternstrokeChineseMediterranean dietDASH

Copyright information

© Serdi and Springer-Verlag France 2013

Authors and Affiliations

  1. 1.Department of Medicine and TherapeuticsThe Chinese University of Hong KongShatin, Hong KongChina
  2. 2.Jockey Club Centre for Osteoporosis Care and ControlThe Chinese University of Hong KongShatin, Hong KongChina
  3. 3.Rm 124021, 10/F Clinical Sciences BuildingPrince of Wales HospitalShatin, New Territories, Hong Kong SARChina