Evidence map›Paper›PMID 21831301›Full record

ArticleBMC musculoskeletal disorders2011

Reference ranges for bone mineral density and prevalence of osteoporosis in Vietnamese men and women.

Lan T Ho-Pham, Uyen D T Nguyen, Hoa N Pham, Nguyen D Nguyen, Tuan V Nguyen

Abstract readComparative StudyValidation Study
In one paragraph

Article in BMC musculoskeletal disorders, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Updated practice guideline for dual-energy X-ray absorptiometry (DXA).European journal of nuclear medicine and molecular imaging · 2025
    Guideline
  2. Prevalence of osteoporosis and incidence of related fractures in developed economies in the Asia Pacific region: a systematic review.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2023
    Pooled it
  3. Trial
  4. Different reference BMDs affect the prevalence of osteoporosis.Journal of bone and mineral metabolism · 2016
    Trial
  5. Article
  6. Consensus statement on the application of artificial intelligence in osteoporosis screening and management: perspectives from the Asia-Pacific region.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Article
  7. Article
  8. Muscle mass, not fat mass, predicts vertebral fracture risk: Vietnam osteoporosis study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Osteoporosis: Molecular Pathology, Diagnostics, and Therapeutics.International journal of molecular sciences · 2023
    Review
  17. Longitudinal changes in bone mineral density during perimenopausal transition: the Vietnam Osteoporosis Study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2023
    Article
  18. Article
  19. Current Status of the Diagnosis and Management of Osteoporosis.International journal of molecular sciences · 2022
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Lan T Ho-PhamDepartment of Internal Medicine, Pham Ngoc Thach University of Medicine, 86/2 Thanh Thai Street, Ho Chi Minh City, Vietnam. thuclanhopham@pnt.edu.vn
Uyen D T Nguyen
Hoa N Pham
Nguyen D Nguyen
Tuan V Nguyen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to examine the effect of different reference ranges in bone mineral density on the diagnosis of osteoporosis.

methodsThis cross-sectional study involved 357 men and 870 women aged between 18 and 89 years, who were randomly sampled from various districts within Ho Chi Minh City, Vietnam. BMD at the femoral neck, lumbar spine and whole body was measured by DXA (Hologic QDR4500). Polynomial regression models and bootstraps method were used to determine peak BMD and standard deviation (SD). Based on the two parameters, we computed T-scores (denoted by TVN) for each individual in the study. A similar diagnosis was also done based on T-scores provided by the densitometer (TDXA), which is based on the US White population (NHANES III). We then compared the concordance between TVN and TDXA in the classification of osteoporosis. Osteoporosis was defined according to the World Health Organization criteria.

resultsIn post-menopausal women, the prevalence of osteoporosis based on femoral neck TVN was 29%, but when the diagnosis was based on TDXA, the prevalence was 44%. In men aged 50+ years, the TVN-based prevalence of osteoporosis was 10%, which was lower than TDXA-based prevalence (30%). Among 177 women who were diagnosed with osteoporosis by TDXA, 35% were actually osteopenia by TVN. The kappa-statistic was 0.54 for women and 0.41 for men.

conclusionThese data suggest that the T-scores provided by the Hologic QDR4500 over-diagnosed osteoporosis in Vietnamese men and women. This over-diagnosis could lead to over-treatment and influence the decision of recruitment of participants in clinical trials.

Indexed as

Absorptiometry, PhotonAdolescentAdultAgedAged, 80 and overAsian PeopleBone DensityCross-Sectional StudiesFemaleHumansMaleMiddle AgedOsteoporosisOsteoporosis, PostmenopausalPrevalenceReference Values

Identifiers

PMID21831301
PMCPMC3163638

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.