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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01807351
Other study ID # KWC_REC_5522
Secondary ID
Status Completed
Phase N/A
First received March 7, 2013
Last updated March 7, 2013
Start date July 2012

Study information

Verified date March 2013
Source Kowloon Hospital, Hong Kong
Contact n/a
Is FDA regulated No
Health authority Hong Kong: Ethics Committee
Study type Observational

Clinical Trial Summary

Retrospective cohort of all the patients with elevated blood sugar (but no Diabetes) attending the study sites from 2002 to 2007. We retrieval their records to see how many of them actually developed diabetes. The patient's record will be followed up to 6 years after their first abnormally high blood sugar checked. We will measure their parameters including sex, age, pay code and whether they have hypertension or not to see what factors will increase risk of DM development.


Description:

We aim at find out the progression of impaired fasting glucose (IFG) to type 2 Diabetes Mellitus (T2DM) among patients in general practice setting. We can understand the progress of the target patients so as to improve patient education, improve patient motivation in lifestyle modification.We are going to find out the annual incidence of Type 2 DM developement among the patients with and without hypertension Hypertensive patients with impaired fasting glucose are more likely to develop type 2 diabetes mellitus compare with normal tensive patients


Recruitment information / eligibility

Status Completed
Enrollment 10000
Est. completion date
Est. primary completion date December 2012
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:We include all subjects age =18 attended the study centers with laboratory diagnosis of IFG by blood sugar 6.1 mmol/l to 6.9 mmol/l checked from 2002 to 2007 in the 6 study centres.

Exclusion Criteria:We excluded the subjects who have diagnosis of T2DM the years prior to the year of blood taken. We define T2DM by physician coding ICPC-2 of T90 Diabetes non-insulin dependent or prescription of antidiabetic drugs (British National Formulary(23) (BNF) section 6.1 and 6.2). We exclude the patients who had been admitted to Hong Kong Hospital Authority (HKHA)or attended HKHA specialty Clinic, or attended any GOPC with dispensing history of drug used in diabetes in BNF Section 6.1.1 insulins or 6.1.2 anti-diabetic drugs, or with ICPC coded with T90) during 1 Jan 2005 - 31 Dec 2006 (i.e. 2 year prior to starting of study period). We also excluded patient with the date of diagnosis of DM by above criteria earlier than the date of laboratory test results of IFG.

Study Design

Observational Model: Cohort, Time Perspective: Retrospective


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Kowloon Hospital, Hong Kong

Outcome

Type Measure Description Time frame Safety issue
Primary Number of subjects develope Diabetes Mellitus We use the subject list drawn by the above criterion to retrieval the subsequent attendance record results annually (see Table 1 for the study method). Subjects are defined to have diagnosis of diabetes if they have physician coded of T90 or they have been prescribed of antidiabetic drugs (BNF(24) section 6.1 and 6.2). Each subjects of the cohort was followed to the date of IFG diagnosis and date of T2DM diagnosis. For IFG subjects who fulfilled the DM diagnosis criteria twice, only the earliest occurrence of T2DM diagnosis was recorded.
Other outcomes we are going to measure include age, sex, paying status in the consultation we first diagnosed to have IFG. We will see whether they have physician diagnosis of hypertension by coding International Classification of Primary Care (ICPC-2) coded as K86 uncomplicated hypertension or K87 complicated hypertension, or they have been prescribed with antihypertensive drugs (British National Formulary BNF(24) section 2.5).
2005 to 2012 No
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