Osteoporosis International

, Volume 24, Issue 11, pp 2827–2836 | Cite as

Greater intake of fruit and vegetables is associated with a lower risk of osteoporotic hip fractures in elderly Chinese: a 1:1 matched case–control study

Original Article

Abstract

Summary

In this case–control study, we examined the relationship between the consumption of fruit and vegetables and risk of hip fractures in 646 pairs of incident cases and controls in elderly Chinese. We found that greater consumption of both fruit and vegetables in men and vegetables in women was associated with a lower risk of osteoporotic hip fractures in elderly Chinese.

Introduction

The association between fruit and vegetable consumption and the risk of osteoporotic fractures remains controversial due to limited published evidence. The purpose of this study was to determine whether consuming fruits and vegetables has a protective effect against hip fractures.

Methods

Between January 2008 and December 2012, 646 (162 males, 484 females) incident cases (70.9 ± 6.8 years) of hip fractures were enrolled from five hospitals, with 646 sex- and age-matched (±3 years) controls (70.7 ± 6.8 years) from hospitals or the community. Face-to-face interviews were conducted to assess habitual dietary intakes using a 79-item food frequency questionnaire and various covariates by structured questionnaires.

Results

Multivariate conditional logistic regression analyses showed dose-dependent inverse correlations between the intake of total fruit (p-trend = 0.014), total vegetables (p-trend <0.001), fruits and vegetables combined (p-trend < 0.001) and the risk of hip fractures after adjustment for sociodemographic characteristics, dietary factors and other potential confounders. The adjusted odds ratios (95 % confidence interval) for hip fractures in the top quartiles (vs. the lowest quartiles) for the intake of fruits, vegetables and the combination of fruits and vegetables were 0.53 (0.32–0.87), 0.37 (0.23–0.60) and 0.25 (0.15–0.41), respectively. Stratified analyses showed that the benefits remained significant in males (p = 0.001) but not in females (p = 0.210) (p-interaction 0.045). Among the subcategories of fruits and vegetables, similar associations were observed for all subgroups except light-coloured fruits.

Conclusions

Our findings suggest that greater consumption of both fruits and vegetables in men and vegetables in women may decrease the risk of osteoporotic hip fractures in elderly Chinese.

Keywords

Case–control study Chinese Elderly Fruit Hip fractures Vegetables 

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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2013

Authors and Affiliations

  • H.-L. Xie
    • 1
  • B.-H. Wu
    • 1
    • 2
  • W.-Q. Xue
    • 1
  • M.-G. He
    • 3
  • F. Fan
    • 1
  • W.-F. Ouyang
    • 1
    • 4
  • S.-l. Tu
    • 1
    • 5
  • H.-L. Zhu
    • 1
    • 7
  • Y.-M. Chen
    • 1
    • 6
  1. 1.Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public HealthSun Yat-sen UniversityGuangzhouPeople’s Republic of China
  2. 2.Guangzhou Orthopaedics Trauma HospitalGuangzhouPeople’s Republic of China
  3. 3.Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhouPeople’s Republic of China
  4. 4.Guangdong General HospitalGuangzhouPeople’s Republic of China
  5. 5.Orthopaedics Hospital of Baishi DistrictJiangmenPeople’s Republic of China
  6. 6.Department of Medical Statistics and Epidemiology, School of Public HealthSun Yat-sen UniversityGuangzhouPeople’s Republic of China
  7. 7.Department of Nutrition, School of Public HealthSun Yat-sen UniversityGuangzhouPeople’s Republic of China

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