title: Management trajectories in the type 2 diabetes Integrated Delivery System project in Taiwan: accounting for behavioral therapy, nutrition education and therapeutics.
abstract: OBJECTIVE
  Glycated hemoglobin (HbA1c) assessment is basic to diabetes management. Little is done to describe the whole spectrum of the trajectory, its related temporal patterns of metabolic indices, and comorbidities.
  
  
  RESULTS
  This was a longitudinal study. In the Diabetes Management through Integrated Delivery System project in Taiwan, enrollees had diabetes, but no major comorbidities. They were randomized into intensive or conventional education (health, diet and exercise) groups. HbA1c was classified by a groupbased trajectory model on the basis of repeated six-monthly measurements. We analyzed data from 1091 subjects who had at least two measurements on HbA1c. HbA1c exhibited three distinct ranges of low (42-53 mmol/mol), intermediate (64-75 mmol/mol) and high (97 mmol/mol), all of which persisted for 4.5 years regardless of receiving intensive education or not. Temporal changes and a time-group interaction were found for triglycerides, total cholesterol, HDL-C and LDL-C. The high trajectory was associated with the major co-morbidities of retinopathy, nephropathy, neuropathy, stroke, hypoglycemia, and ketoacidosis. Patients in the intensive education group (62.4%), which were equally distributed in the three trajectories, had significantly lower HbA1cs (-0.14%= -1.5 mmol/mol, p=0.026). The intermediate trajectory patients with intensive education had HbA1cs higher than the low trajectory patients with conventional education (β=0.189, p=0.033). Though not significant, a similar pattern was found for DM education in the high group (β=0.223, p=0.154).
  
  
  CONCLUSIONS
  Novel strategies beyond current education and pharmacotherapeutic regimens are needed to lower HbA1c at least 11 mmol/mol for the high HbA1c group to minimize comorbidities.
authors.affiliation: Division of Preventive Medicine and Health Services Research, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, 35053 Taiwan. cch@nhri.org.tw.
authors.forename: Hsing-Yi
authors.initials: HY
authors.lastname: Chang
authors.forename: Mark L
authors.initials: ML
authors.lastname: Wahlqvist
authors.forename: Wen-Ling
authors.initials: WL
authors.lastname: Liu
authors.forename: Meei-Shyuan
authors.initials: MS
authors.lastname: Lee
authors.forename: Shyi-Jang
authors.initials: SJ
authors.lastname: Shin
authors.forename: Yu-Sheng
authors.initials: YS
authors.lastname: Li
authors.forename: Chih-Jen
authors.initials: CJ
authors.lastname: Chang
authors.forename: Chwen-Tzuei
authors.initials: CT
authors.lastname: Chang
authors.forename: Mao-Tsu
authors.initials: MT
authors.lastname: Fuh
authors.forename: Hung-Jen
authors.initials: HJ
authors.lastname: Yang
authors.forename: Tong-Yuan
authors.initials: TY
authors.lastname: Tai
authors.forename: Chih-Cheng
authors.initials: CC
authors.lastname: Hsu
mesh_terms: D000368:Aged; D001521:Behavior Therapy; D015992:Body Mass Index; D019033:Delivery of Health Care, Integrated; D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000150:complications / Q000628:therapy*; D004032:Diet; D015444:Exercise; D005260:Female; D006442:Glycated Hemoglobin / Q000032:analysis; D006801:Humans; D008055:Lipids / Q000097:blood; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010353:Patient Education as Topic; D013624:Taiwan; D016896:Treatment Outcome
chemical_list: D006442:Glycated Hemoglobin; D008055:Lipids