title: Randomized controlled trial of two forms of self-management group education in Japanese people with impaired glucose tolerance.
abstract: The aim of this study was to determine the effectiveness of education on diabetes prevention in subjects with impaired glucose tolerance. A total of 100 subjects of impaired glucose tolerance with hemoglobin A1c (HbA1c) levels >/=5.5 to <6.1% were assigned randomly to either support or control groups. All subjects received education in 8 sessions over a 6-month period. The support group consisted of 10 members collaborating with a dietitian or a nurse who learned coping skills by employing a participant-centered approach. Participants in the support group were required to keep a diary that monitored weight, food intake and blood glucose levels, while the control group attended several lectures. Subjects assigned to the support group had a reduction in mean HbA1c levels from 5.77 +/- 0.36% at baseline to 5.39 +/- 0.24% at the endpoint (p<0.01). Weight, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) levels also decreased (p<0.01) in the support group, whereas subjects in the control group had no observable reduction in these indices. After intervention, participants of the support group had improvements in their 2-h post-meal blood glucose levels. Support group education can be effective for improving glycemic control in participants when carried out in collaboration with educators and other team members.
authors.affiliation: Faculty of Comprehensive Rehabilitation, Osaka Prefecture University, Osaka 583-8555, Japan.
authors.forename: Saeko
authors.initials: S
authors.lastname: Imai
authors.forename: Hana
authors.initials: H
authors.lastname: Kozai
authors.forename: Yuko
authors.initials: Y
authors.lastname: Naruse
authors.forename: Kanji
authors.initials: K
authors.lastname: Watanabe
authors.forename: Michiaki
authors.initials: M
authors.lastname: Fukui
authors.forename: Goji
authors.initials: G
authors.lastname: Hasegawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Obayashi
authors.forename: Naoto
authors.initials: N
authors.lastname: Nakamura
authors.forename: Yuji
authors.initials: Y
authors.lastname: Naito
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Yoshikawa
authors.forename: Shizuo
authors.initials: S
authors.lastname: Kajiyama