Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study
Objectives People who are obese have higher demands for medical care than those of the normal weight people. However, in view of their shorter life expectancy, it is unclear whether obese people have higher lifetime medical expenditure. We examined the association between body mass index, life expec...
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BMJ Publishing Group
2012-05-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/2/3/e000940.full |
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| author | Shinichi Kuriyama Miyuki Kawado Shuji Hashimoto Ichiro Tsuji Atsushi Hozawa Toshimasa Sone Masato Nagai Masako Kakizaki Kaori Ohmori-Matsuda |
| author_facet | Shinichi Kuriyama Miyuki Kawado Shuji Hashimoto Ichiro Tsuji Atsushi Hozawa Toshimasa Sone Masato Nagai Masako Kakizaki Kaori Ohmori-Matsuda |
| author_sort | Shinichi Kuriyama |
| collection | DOAJ |
| description | Objectives People who are obese have higher demands for medical care than those of the normal weight people. However, in view of their shorter life expectancy, it is unclear whether obese people have higher lifetime medical expenditure. We examined the association between body mass index, life expectancy and lifetime medical expenditure.Design Prospective cohort study using individual data from the Ohsaki Cohort Study.Setting Miyagi Prefecture, northeastern Japan.Participants The 41 965 participants aged 40–79 years.Primary and secondary outcome measures The life expectancy and lifetime medical expenditure aged from 40 years.Results In spite of their shorter life expectancy, obese participants might require higher medical expenditure than normal weight participants. In men aged 40 years, multiadjusted life expectancy for those who were obese participants was 41.4 years (95% CI 38.28 to 44.70), which was 1.7 years non-significantly shorter than that for normal weight participants (p=0.3184). Multiadjusted lifetime medical expenditure for obese participants was £112 858.9 (94 954.1–131 840.9), being 14.7% non-significantly higher than that for normal weight participants (p=0.1141). In women aged 40 years, multiadjusted life expectancy for those who were obese participants was 49.2 years (46.14–52.59), which was 3.1 years non-significantly shorter than for normal weight participants (p=0.0724), and multiadjusted lifetime medical expenditure was £137 765.9 (123 672.9–152 970.2), being 21.6% significantly higher (p=0.0005).Conclusions According to the point estimate, lifetime medical expenditure might appear to be higher for obese participants, despite their short life expectancy. With weight control, more people would enjoy their longevity with lower demands for medical care. |
| format | Article |
| id | doaj-art-3ceae0fb05be48d5a8a620764c2a4b7f |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2012-05-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-3ceae0fb05be48d5a8a620764c2a4b7f2025-02-08T22:55:09ZengBMJ Publishing GroupBMJ Open2044-60552012-05-012310.1136/bmjopen-2012-000940Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort StudyShinichi Kuriyama0Miyuki Kawado1Shuji Hashimoto2Ichiro Tsuji3Atsushi Hozawa4Toshimasa Sone5Masato Nagai6Masako Kakizaki7Kaori Ohmori-Matsuda810 Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, JapanDepartment of Hygiene, Fujita Health University School of Medicine, Toyoake, JapanDepartment of Hygiene, Fujita Health University School of Medicine, Toyoake, JapanDivision of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan1 Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan4 Department of Rehabilitation, Faculty of Health Science, Tohoku Fukushi University, Sendai, Miyagi, JapanDepartment of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, JapanDivision of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, Sendai, JapanDivision of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, Sendai, JapanObjectives People who are obese have higher demands for medical care than those of the normal weight people. However, in view of their shorter life expectancy, it is unclear whether obese people have higher lifetime medical expenditure. We examined the association between body mass index, life expectancy and lifetime medical expenditure.Design Prospective cohort study using individual data from the Ohsaki Cohort Study.Setting Miyagi Prefecture, northeastern Japan.Participants The 41 965 participants aged 40–79 years.Primary and secondary outcome measures The life expectancy and lifetime medical expenditure aged from 40 years.Results In spite of their shorter life expectancy, obese participants might require higher medical expenditure than normal weight participants. In men aged 40 years, multiadjusted life expectancy for those who were obese participants was 41.4 years (95% CI 38.28 to 44.70), which was 1.7 years non-significantly shorter than that for normal weight participants (p=0.3184). Multiadjusted lifetime medical expenditure for obese participants was £112 858.9 (94 954.1–131 840.9), being 14.7% non-significantly higher than that for normal weight participants (p=0.1141). In women aged 40 years, multiadjusted life expectancy for those who were obese participants was 49.2 years (46.14–52.59), which was 3.1 years non-significantly shorter than for normal weight participants (p=0.0724), and multiadjusted lifetime medical expenditure was £137 765.9 (123 672.9–152 970.2), being 21.6% significantly higher (p=0.0005).Conclusions According to the point estimate, lifetime medical expenditure might appear to be higher for obese participants, despite their short life expectancy. With weight control, more people would enjoy their longevity with lower demands for medical care.https://bmjopen.bmj.com/content/2/3/e000940.full |
| spellingShingle | Shinichi Kuriyama Miyuki Kawado Shuji Hashimoto Ichiro Tsuji Atsushi Hozawa Toshimasa Sone Masato Nagai Masako Kakizaki Kaori Ohmori-Matsuda Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study BMJ Open |
| title | Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study |
| title_full | Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study |
| title_fullStr | Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study |
| title_full_unstemmed | Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study |
| title_short | Impact of obesity, overweight and underweight on life expectancy and lifetime medical expenditures: the Ohsaki Cohort Study |
| title_sort | impact of obesity overweight and underweight on life expectancy and lifetime medical expenditures the ohsaki cohort study |
| url | https://bmjopen.bmj.com/content/2/3/e000940.full |
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