Evidence map›Paper›PMID 21432549›Full record

ArticleEnvironmental health and preventive medicine2010

Association between lifestyle habits and bone mineral density in Japanese juveniles.

Yoshihiko Nakagi, Toshihiro Ito, Kenzo Hirooka, Yoshihiko Sugioka, Hitoshi Endo, Yasuaki Saijo, Hirohisa Imai, Hidekatsu Takeda, Fujio Kayama, Satoshi Sasaki and 1 more

Open access · goldAbstract read
In one paragraph

Article in Environmental health and preventive medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 20% of its field
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. The effects of weight loss approaches on bone mineral density in adults: a systematic review and meta-analysis of randomized controlled trials.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Pooled it
  2. Sleep disruptions and bone health: what do we know so far?Current opinion in endocrinology, diabetes, and obesity · 2021
    Review
  3. Cross-sectional and longitudinal associations between sleep duration, sleep quality, and bone stiffness in European children and adolescents.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2021
    Article
  4. Review
  5. Calcium homeostasis during hibernation and in mechanical environments disrupting calcium homeostasis.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2020
    Review
  6. Article
  7. Article
  8. Letter to the Editor.Osteoporosis and sarcopenia · 2017
    Article
  9. Review
  10. Article
  11. Observational
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

11 authors at 6 institutions in 1 country.

Yoshihiko NakagiDepartment of Health Science, Asahikawa Medical College, Midorigaoka, E2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan. nakagi@asahikawa-med.ac.jp
Toshihiro Ito
Kenzo Hirooka
Yoshihiko Sugioka
Hitoshi Endo
Yasuaki Saijo
Hirohisa Imai
Hidekatsu Takeda
Fujio Kayama
Satoshi Sasaki
Takahiko Yoshida
Asahikawa Medical College Hospital · JPAsahikawa University · JPJichi Medical University · JPNational Institute of Public Health · JPSapporo Medical University · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe explored the relationship between bone mineral density (BMD) and lifestyle in juveniles to identify factors leading to higher peak bone mass and prevention of osteoporosis in later life.

methodsJuveniles (1,364 students: 770 boys and 594 girls, aged 6-18 years) attending school in Hokkaido prefecture, Japan, were asked to complete a brief self-administered diet history questionnaire for 10-year-olds (BDHQ10y) providing information about personal history, lifestyle, and intake of nutritional elements. In addition, BMD and grip strength were measured. We analyzed the relationship between BMD and lifestyle factors.

resultsThe difference in BMD for boys was larger among the junior and senior high school groups. The difference in BMD for girls was larger among older elementary and later school children. Anthropometric variables and grip strength were strongly correlated with BMD. Having a nap-time routine was significantly correlated with BMD, but sleep time and sports club activities were not. BMD among juveniles who attained secondary sexual characteristics was significantly higher than that of juveniles of the same age who had not attained these characteristics. Calcium intake was significantly lower in senior high school students compared with other grades. Consumption of milk by senior high school boys and junior high school girls was weakly correlated with BMD.

conclusionsOur findings encourage educational interventions to counsel students to avoid weight loss and calcium deficiency. This effective intervention should begin before the higher elementary school, when juveniles have the greatest likelihood for preventing lower peak bone mass and osteoporosis.

Identifiers

PMID21432549
PMCPMC2886892
OpenAlexW2110706792

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.