Effect of combined cardiovascular risk factors on individual and population medical expenditures - A 10-year cohort study of National Health Insurance in a Japanese population

Tomonori Okamura, Koshi Nakamura, Hideyuki Kanda, Takehito Hayakawa, Atsushi Hozawa, Yoshitaka Murakami, Takashi Kadowaki, Yoshikuni Kita, Akira Okayama, Hirotsugu Ueshima

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Background: Although obesity is required for some criteria defining metabolic syndrome, clustering of other risk factors also indicates an increased risk of cardiovascular disease. Whether the relationship between cardiovascular risk factor clustering and medical expenditures differs with body mass index (BMI) requires investigation, especially in a population with a low prevalence of obesity such as that in Japan. Methods and Results: A 10-year cohort study of 4,478 Japanese National Health Insurance beneficiaries aged 40-69 years in a community between 1990 and 2001 was carried out in the present study. The clustering of cardiovascular risk factors showed a positive and graded relationship to personal medical expenditures in participants who are overweight (BMI ≥25.0) and normal weight (BMI <25.0). The individual medical expenditures per month were 1.7-fold higher for participants with 2 or 3 risk factors and overweight than for those without these factors (26,782 vs 15,377 Japanese yen). Differences in the geometric means were similarly significant after adjustment for other confounding factors. However, the excess medical expenditures by risk clustering of normal weight categories within the total medical expenditures were higher than those of overweight categories because more participants were of normal weight. Conclusions: Cardiovascular risk factor clustering and being overweight can be a useful predictor of medical expenditures in a Japanese population.

Original languageEnglish
Pages (from-to)807-813
Number of pages7
JournalCirculation Journal
Volume71
Issue number6
DOIs
Publication statusPublished - Jun 4 2007
Externally publishedYes

Fingerprint

antineoplaston A10
National Health Programs
Health Expenditures
Cluster Analysis
Cohort Studies
Body Mass Index
Population
Weights and Measures
Personal Financing
Obesity
Insurance Benefits
Japan
Cardiovascular Diseases

Keywords

  • Medical expenditures
  • Metabolic components
  • Overweight
  • Risk factors

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Effect of combined cardiovascular risk factors on individual and population medical expenditures - A 10-year cohort study of National Health Insurance in a Japanese population. / Okamura, Tomonori; Nakamura, Koshi; Kanda, Hideyuki; Hayakawa, Takehito; Hozawa, Atsushi; Murakami, Yoshitaka; Kadowaki, Takashi; Kita, Yoshikuni; Okayama, Akira; Ueshima, Hirotsugu.

In: Circulation Journal, Vol. 71, No. 6, 04.06.2007, p. 807-813.

Research output: Contribution to journalArticle

Okamura, Tomonori ; Nakamura, Koshi ; Kanda, Hideyuki ; Hayakawa, Takehito ; Hozawa, Atsushi ; Murakami, Yoshitaka ; Kadowaki, Takashi ; Kita, Yoshikuni ; Okayama, Akira ; Ueshima, Hirotsugu. / Effect of combined cardiovascular risk factors on individual and population medical expenditures - A 10-year cohort study of National Health Insurance in a Japanese population. In: Circulation Journal. 2007 ; Vol. 71, No. 6. pp. 807-813.
@article{7b0179eddf0b452bb3269abb906e6718,
title = "Effect of combined cardiovascular risk factors on individual and population medical expenditures - A 10-year cohort study of National Health Insurance in a Japanese population",
abstract = "Background: Although obesity is required for some criteria defining metabolic syndrome, clustering of other risk factors also indicates an increased risk of cardiovascular disease. Whether the relationship between cardiovascular risk factor clustering and medical expenditures differs with body mass index (BMI) requires investigation, especially in a population with a low prevalence of obesity such as that in Japan. Methods and Results: A 10-year cohort study of 4,478 Japanese National Health Insurance beneficiaries aged 40-69 years in a community between 1990 and 2001 was carried out in the present study. The clustering of cardiovascular risk factors showed a positive and graded relationship to personal medical expenditures in participants who are overweight (BMI ≥25.0) and normal weight (BMI <25.0). The individual medical expenditures per month were 1.7-fold higher for participants with 2 or 3 risk factors and overweight than for those without these factors (26,782 vs 15,377 Japanese yen). Differences in the geometric means were similarly significant after adjustment for other confounding factors. However, the excess medical expenditures by risk clustering of normal weight categories within the total medical expenditures were higher than those of overweight categories because more participants were of normal weight. Conclusions: Cardiovascular risk factor clustering and being overweight can be a useful predictor of medical expenditures in a Japanese population.",
keywords = "Medical expenditures, Metabolic components, Overweight, Risk factors",
author = "Tomonori Okamura and Koshi Nakamura and Hideyuki Kanda and Takehito Hayakawa and Atsushi Hozawa and Yoshitaka Murakami and Takashi Kadowaki and Yoshikuni Kita and Akira Okayama and Hirotsugu Ueshima",
year = "2007",
month = "6",
day = "4",
doi = "10.1253/circj.71.807",
language = "English",
volume = "71",
pages = "807--813",
journal = "Circulation Journal",
issn = "1346-9843",
publisher = "Japanese Circulation Society",
number = "6",

}

TY - JOUR

T1 - Effect of combined cardiovascular risk factors on individual and population medical expenditures - A 10-year cohort study of National Health Insurance in a Japanese population

AU - Okamura, Tomonori

AU - Nakamura, Koshi

AU - Kanda, Hideyuki

AU - Hayakawa, Takehito

AU - Hozawa, Atsushi

AU - Murakami, Yoshitaka

AU - Kadowaki, Takashi

AU - Kita, Yoshikuni

AU - Okayama, Akira

AU - Ueshima, Hirotsugu

PY - 2007/6/4

Y1 - 2007/6/4

N2 - Background: Although obesity is required for some criteria defining metabolic syndrome, clustering of other risk factors also indicates an increased risk of cardiovascular disease. Whether the relationship between cardiovascular risk factor clustering and medical expenditures differs with body mass index (BMI) requires investigation, especially in a population with a low prevalence of obesity such as that in Japan. Methods and Results: A 10-year cohort study of 4,478 Japanese National Health Insurance beneficiaries aged 40-69 years in a community between 1990 and 2001 was carried out in the present study. The clustering of cardiovascular risk factors showed a positive and graded relationship to personal medical expenditures in participants who are overweight (BMI ≥25.0) and normal weight (BMI <25.0). The individual medical expenditures per month were 1.7-fold higher for participants with 2 or 3 risk factors and overweight than for those without these factors (26,782 vs 15,377 Japanese yen). Differences in the geometric means were similarly significant after adjustment for other confounding factors. However, the excess medical expenditures by risk clustering of normal weight categories within the total medical expenditures were higher than those of overweight categories because more participants were of normal weight. Conclusions: Cardiovascular risk factor clustering and being overweight can be a useful predictor of medical expenditures in a Japanese population.

AB - Background: Although obesity is required for some criteria defining metabolic syndrome, clustering of other risk factors also indicates an increased risk of cardiovascular disease. Whether the relationship between cardiovascular risk factor clustering and medical expenditures differs with body mass index (BMI) requires investigation, especially in a population with a low prevalence of obesity such as that in Japan. Methods and Results: A 10-year cohort study of 4,478 Japanese National Health Insurance beneficiaries aged 40-69 years in a community between 1990 and 2001 was carried out in the present study. The clustering of cardiovascular risk factors showed a positive and graded relationship to personal medical expenditures in participants who are overweight (BMI ≥25.0) and normal weight (BMI <25.0). The individual medical expenditures per month were 1.7-fold higher for participants with 2 or 3 risk factors and overweight than for those without these factors (26,782 vs 15,377 Japanese yen). Differences in the geometric means were similarly significant after adjustment for other confounding factors. However, the excess medical expenditures by risk clustering of normal weight categories within the total medical expenditures were higher than those of overweight categories because more participants were of normal weight. Conclusions: Cardiovascular risk factor clustering and being overweight can be a useful predictor of medical expenditures in a Japanese population.

KW - Medical expenditures

KW - Metabolic components

KW - Overweight

KW - Risk factors

UR - http://www.scopus.com/inward/record.url?scp=34249687149&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34249687149&partnerID=8YFLogxK

U2 - 10.1253/circj.71.807

DO - 10.1253/circj.71.807

M3 - Article

C2 - 17526973

AN - SCOPUS:34249687149

VL - 71

SP - 807

EP - 813

JO - Circulation Journal

JF - Circulation Journal

SN - 1346-9843

IS - 6

ER -