Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study

Objective This study aims to examine the validity of the Framingham general cardiovascular disease (CVD) risk chart in a primary care setting. Design This is a 10-year retrospective cohort study. Setting A primary care clinic in a teaching hospital in Malaysia. Participants 967 patients’ records wer...

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Main Authors: Chia, Yook Chin, Yu , Sarah Weng Gray, Ching, Siew Mooi, Hooi, Min Lim, Chinna, Karuthan
Format: Article
Language:English
Published: BMJ Group 2015
Online Access:http://psasir.upm.edu.my/id/eprint/46850/
http://psasir.upm.edu.my/id/eprint/46850/1/Validation%20of%20the%20framingham%20general%20cardiovascular%20risk%20score%20in%20a%20multi-ethnic%20Asian%20population%20a%20retrospective%20cohort%20study.pdf
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author Chia, Yook Chin
Yu , Sarah Weng Gray
Ching, Siew Mooi
Hooi, Min Lim
Chinna, Karuthan
author_facet Chia, Yook Chin
Yu , Sarah Weng Gray
Ching, Siew Mooi
Hooi, Min Lim
Chinna, Karuthan
author_sort Chia, Yook Chin
building UPM Institutional Repository
collection Online Access
description Objective This study aims to examine the validity of the Framingham general cardiovascular disease (CVD) risk chart in a primary care setting. Design This is a 10-year retrospective cohort study. Setting A primary care clinic in a teaching hospital in Malaysia. Participants 967 patients’ records were randomly selected from patients who were attending follow-up in the clinic. Main outcome measures Baseline demographic data, history of diabetes and smoking, blood pressure (BP), and serum lipids were captured from patient records in 1998. Each patient's Framingham CVD score was computed from these parameters. All atherosclerotic CVD events occurring between 1998 and 2007 were counted. Results In 1998, mean age was 57 years with 33.8% men, 6.1% smokers, 43.3% diabetics and 59.7% hypertensive. Median BP was 140/80 mm Hg and total cholesterol 6.0 mmol/L (1.3). The predicted median Framingham general CVD risk score for the study population was 21.5% (IQR 1.2–30.0) while the actual CVD events that occurred in the 10 years was 13.1% (127/967). The median CVD points for men was 30.0, giving them a CVD risk of more than 30%; for women it is 18.5, a CVD risk of 21.5%. Our study found that the Framingham general CVD risk score to have moderate discrimination with an area under the receiver operating characteristic curve (AUC) of 0.63. It also discriminates well for Malay (AUC 0.65, p=0.01), Chinese (AUC 0.60, p=0.03), and Indians (AUC 0.65, p=0.001). There was good calibration with Hosmer-Lemeshow test χ2=3.25, p=0.78. Conclusions Taking into account that this cohort of patients were already on treatment, the Framingham General CVD Risk Prediction Score predicts fairly accurately for men and overestimates somewhat for women. In the absence of local risk prediction charts, the Framingham general CVD risk prediction chart is a reasonable alternative for use in a multiethnic group in a primary care setting.
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spelling upm-468502018-01-30T10:26:56Z http://psasir.upm.edu.my/id/eprint/46850/ Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study Chia, Yook Chin Yu , Sarah Weng Gray Ching, Siew Mooi Hooi, Min Lim Chinna, Karuthan Objective This study aims to examine the validity of the Framingham general cardiovascular disease (CVD) risk chart in a primary care setting. Design This is a 10-year retrospective cohort study. Setting A primary care clinic in a teaching hospital in Malaysia. Participants 967 patients’ records were randomly selected from patients who were attending follow-up in the clinic. Main outcome measures Baseline demographic data, history of diabetes and smoking, blood pressure (BP), and serum lipids were captured from patient records in 1998. Each patient's Framingham CVD score was computed from these parameters. All atherosclerotic CVD events occurring between 1998 and 2007 were counted. Results In 1998, mean age was 57 years with 33.8% men, 6.1% smokers, 43.3% diabetics and 59.7% hypertensive. Median BP was 140/80 mm Hg and total cholesterol 6.0 mmol/L (1.3). The predicted median Framingham general CVD risk score for the study population was 21.5% (IQR 1.2–30.0) while the actual CVD events that occurred in the 10 years was 13.1% (127/967). The median CVD points for men was 30.0, giving them a CVD risk of more than 30%; for women it is 18.5, a CVD risk of 21.5%. Our study found that the Framingham general CVD risk score to have moderate discrimination with an area under the receiver operating characteristic curve (AUC) of 0.63. It also discriminates well for Malay (AUC 0.65, p=0.01), Chinese (AUC 0.60, p=0.03), and Indians (AUC 0.65, p=0.001). There was good calibration with Hosmer-Lemeshow test χ2=3.25, p=0.78. Conclusions Taking into account that this cohort of patients were already on treatment, the Framingham General CVD Risk Prediction Score predicts fairly accurately for men and overestimates somewhat for women. In the absence of local risk prediction charts, the Framingham general CVD risk prediction chart is a reasonable alternative for use in a multiethnic group in a primary care setting. BMJ Group 2015 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/46850/1/Validation%20of%20the%20framingham%20general%20cardiovascular%20risk%20score%20in%20a%20multi-ethnic%20Asian%20population%20a%20retrospective%20cohort%20study.pdf Chia, Yook Chin and Yu , Sarah Weng Gray and Ching, Siew Mooi and Hooi, Min Lim and Chinna, Karuthan (2015) Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study. BMJ Open. ISSN 2044-6055 http://bmjopen.bmj.com 10.1136/bmjopen-2014-007324
spellingShingle Chia, Yook Chin
Yu , Sarah Weng Gray
Ching, Siew Mooi
Hooi, Min Lim
Chinna, Karuthan
Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study
title Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study
title_full Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study
title_fullStr Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study
title_full_unstemmed Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study
title_short Validation of the framingham general cardiovascular risk score in a multi-ethnic Asian population a retrospective cohort study
title_sort validation of the framingham general cardiovascular risk score in a multi-ethnic asian population a retrospective cohort study
url http://psasir.upm.edu.my/id/eprint/46850/
http://psasir.upm.edu.my/id/eprint/46850/
http://psasir.upm.edu.my/id/eprint/46850/
http://psasir.upm.edu.my/id/eprint/46850/1/Validation%20of%20the%20framingham%20general%20cardiovascular%20risk%20score%20in%20a%20multi-ethnic%20Asian%20population%20a%20retrospective%20cohort%20study.pdf