Evidence map›Paper›PMID 25452854›Full record

ArticleBMJ open diabetes research & care2014

Effect of baseline HbA1c level on the development of diabetes by lifestyle intervention in primary healthcare settings: insights from subanalysis of the Japan Diabetes Prevention Program.

Naoki Sakane, Juichi Sato, Kazuyo Tsushita, Satoru Tsujii, Kazuhiko Kotani, Makoto Tominaga, Shoji Kawazu, Yuzo Sato, Takeshi Usui, Isao Kamae and 7 more

Abstract read
In one paragraph

Article in BMJ open diabetes research & care, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 3 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

9 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Cost-effectiveness of implementing the National Health Service England Diabetes Prevention Programme in Canada: a modelling study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2026
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  5. Review
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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

17 authors.

Naoki SakaneDivision of Preventive Medicine , Clinical Research Institute , National Hospital Organization Kyoto Medical Center , Kyoto , Japan.
Juichi SatoDepartment of General Medicine/Family & Community Medicine , Nagoya University Graduate School of Medicine , Nagoya , Japan.
Kazuyo TsushitaComprehensive Health Science Center, Aichi Health Promotion Foundation, Higashiura-cho , Aichi , Japan.
Satoru TsujiiDiabetes Center, Tenri Yorozu-sodansho Hospital , Tenri , Japan.
Kazuhiko KotaniDivision of Preventive Medicine , Clinical Research Institute , National Hospital Organization Kyoto Medical Center , Kyoto , Japan ; Department of Clinical Laboratory Medicine , Jichi Medical School , Tochigi , Japan.
Makoto TominagaDivision of Internal Medicine , Hananoki Hospital , Tochigi , Japan.
Shoji KawazuDepartment of Diabetes and Metabolism , Marunouchi Hospital, The Institute for Adult Diseases, Asahi Life Foundation , Tokyo , Japan.
Yuzo SatoThe Graduate Center of Human Sciences, Aichi Mizuho College, Nagoya , Japan.
Takeshi UsuiDivision of Endocrinology , Clinical Research Institute, National Hospital Organization Kyoto Medical Center , Kyoto , Japan.
Isao KamaeGraduate School of Public Policy, The University of Tokyo , Tokyo , Japan.
Toshihide YoshidaObesity and Diabetes Center, Shimabara Hospital , Kyoto , Japan.
Yutaka KiyoharaDepartment of Medicine and Clinical Science , Graduate School of Medical Sciences, Kyusyu University , Fukuoka , Japan.
Shigeaki SatoHirakata General Hospital for Developmental Disorders , Hirakata, Osaka , Japan.
Kokoro TsuzakiDivision of Preventive Medicine , Clinical Research Institute , National Hospital Organization Kyoto Medical Center , Kyoto , Japan.
Kaoru TakahashiDivision of Preventive Medicine , Clinical Research Institute , National Hospital Organization Kyoto Medical Center , Kyoto , Japan ; Hyogo Health Service Association , Hyogo , Japan.
Hideshi KuzuyaNational Hospital Organization Kyoto Medical Center , Kyoto , Japan ; Takeda Hospital , Kyoto , Japan.
Japan Diabetes Prevention Program (JDPP) Research Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo determine the effects of a lifestyle intervention on the development of type 2 diabetes mellitus (T2DM) among participants with impaired glucose tolerance (IGT), in particular in the subgroup with baseline glycated hemoglobin (HbA1c) levels ≥5.7%, in primary healthcare settings.

designRandomized controlled trial.

setting32 healthcare centers in Japan.

participantsParticipants with IGT, aged 30-60 years, were randomly assigned to either an intensive lifestyle intervention group (ILG) or a usual care group (UCG).

interventionsDuring the initial 6 months, participants in the ILG received four group sessions on healthy lifestyles by public health providers. An individual session was further conducted biannually during the 3 years. Participants in the UCG received usual care such as one group session on healthy lifestyles. OUTCOME MEASURES: The primary endpoint was the development of T2DM based on an oral glucose tolerance test.

resultsThe mean follow-up period was 2.3 years. The annual incidence of T2DM were 2.7 and 5.1/100 person-years of follow-up in the ILG (n=145) and UCG (n=149), respectively. The cumulative incidence of T2DM was significantly lower in the ILG than in the UCG among participants with HbA1c levels ≥5.7% (log-rank=3.52, p=0.06; Breslow=4.05, p=0.04; Tarone-Ware=3.79, p=0.05), while this was not found among participants with HbA1c levels <5.7%.

conclusionsIntensive lifestyle intervention in primary healthcare setting is effective in preventing the development of T2DM in IGT participants with HbA1c levels ≥5.7%, relative to those with HbA1c levels <5.7%. TRIAL REGISTRATION NUMBER: UMIN000003136.

Indexed as

HbA1cImpaired Glucose ToleranceIntervention GroupsType 2 Diabetes

Identifiers

PMID25452854
PMCPMC4212559

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Registered trials

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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.