TY - JOUR
T1 - Medical costs attributable to overweight and obesity in Japanese individuals
AU - Fujita, Misuzu
AU - Sato, Yasunori
AU - Nagashima, Kengo
AU - Takahashi, Sho
AU - Hata, Akira
N1 - Funding Information:
We greatly appreciate the help and support from the staff of Chiba City Hall, Masashi Nagashima, Yuki Nakamoto, Toshitaka Hosono, and Shinsuke Mizuma, who provided all the data analysed in this study. This work was supported by JSPS KAKENHI [grant number 26460826 and 17K09195 ] and the Chiba Foundation for Health Promotion & Disease Prevention.
Funding Information:
We greatly appreciate the help and support from the staff of Chiba City Hall, Masashi Nagashima, Yuki Nakamoto, Toshitaka Hosono, and Shinsuke Mizuma, who provided all the data analysed in this study. This work was supported by JSPS KAKENHI [grant number 26460826 and 17K09195] and the Chiba Foundation for Health Promotion & Disease Prevention.
Publisher Copyright:
© 2018 Asia Oceania Association for the Study of Obesity
PY - 2018/9/1
Y1 - 2018/9/1
N2 - Objective: We aimed to reveal the association between body mass index (BMI) and medical costs in the current Japanese population, and to estimate the population attributable fraction (PAF) of medical costs due to overweight and obesity. Methods: A generalized linear mixed model with log link function and gamma distribution was used to evaluate the association between BMI and medical costs in 34,537 beneficiaries of the National Health Insurance aged 40–69 years in Chiba City. Medical cost data were obtained from insurance claims submitted between April 2012 and March 2016. PAFs due to overweight (BMI ≥25.0 and <30.0 kg/m 2 ) and obesity (BMI ≥30.0 kg/m 2 ) were calculated. Results: Overweight and obesity were significant predictors of excessive medical costs in all age and sex groups. PAF due to overweight and obesity was estimated to be 9.62% (95% confidence interval, 8.52–10.73%). Additionally, PAFs in 40–59-year-old individuals (12.76% in men and 11.63% in women) were greater than those in 60–69-year-old subjects (6.55% in men and 7.80% in women) for both sexes. Conclusions: In the Japanese population, overweight and obesity are an excessive financial burden with an estimated PAF of 9.62% of total medical costs.
AB - Objective: We aimed to reveal the association between body mass index (BMI) and medical costs in the current Japanese population, and to estimate the population attributable fraction (PAF) of medical costs due to overweight and obesity. Methods: A generalized linear mixed model with log link function and gamma distribution was used to evaluate the association between BMI and medical costs in 34,537 beneficiaries of the National Health Insurance aged 40–69 years in Chiba City. Medical cost data were obtained from insurance claims submitted between April 2012 and March 2016. PAFs due to overweight (BMI ≥25.0 and <30.0 kg/m 2 ) and obesity (BMI ≥30.0 kg/m 2 ) were calculated. Results: Overweight and obesity were significant predictors of excessive medical costs in all age and sex groups. PAF due to overweight and obesity was estimated to be 9.62% (95% confidence interval, 8.52–10.73%). Additionally, PAFs in 40–59-year-old individuals (12.76% in men and 11.63% in women) were greater than those in 60–69-year-old subjects (6.55% in men and 7.80% in women) for both sexes. Conclusions: In the Japanese population, overweight and obesity are an excessive financial burden with an estimated PAF of 9.62% of total medical costs.
KW - Health insurance claims
KW - Medical costs
KW - Obesity
KW - Overweight
KW - Population attributable fraction
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U2 - 10.1016/j.orcp.2018.06.002
DO - 10.1016/j.orcp.2018.06.002
M3 - Article
C2 - 29937133
AN - SCOPUS:85048881236
SN - 1871-403X
VL - 12
SP - 479
EP - 484
JO - Obesity Research and Clinical Practice
JF - Obesity Research and Clinical Practice
IS - 5
ER -
