Akihiro Kuma1,2,3, Bungo Uchino4, Yoko Ochiai4, Masatoshi Kawashima5, Kazuhiko Enta5, Masahito Tamura6, Yutaka Otsuji7, Akihiko Kato8. 1. Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan. akihiro_k@me.com. 2. Blood Purification Unit, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3125, Japan. akihiro_k@me.com. 3. Health Care Center, Central Japan Railway Company, 1-21-19 Meieki-Minami, Nakamura-ku, Nagoya, 450-0003, Japan. akihiro_k@me.com. 4. Health Promotion Center, Yamaha Motor Co., Ltd., 2500 Shingai, Iwata, 438-8501, Japan. 5. Health Care Center, Central Japan Railway Company, 1-21-19 Meieki-Minami, Nakamura-ku, Nagoya, 450-0003, Japan. 6. Kidney Center, University Hospital of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8556, Japan. 7. Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan. 8. Blood Purification Unit, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3125, Japan.
Abstract
BACKGROUND: Obesity is a risk factor for the development of chronic kidney disease (CKD). However, it remains to be fully examined whether fatness is more useful in predicting incident CKD. We aimed this study to determine the association of body fat, body mass index and waist circumference (WC) with subsequent changes in estimated glomerular filtration rate (eGFR) and incident CKD in young- to middle-aged working men. METHODS: We analyzed data from annual health check-up in male workers aged from 20 to 60 years with basal eGFR of 60-90 mL/min/1.73 m2. Cut-off values of parameters and odds ratio (OR) for the incident CKD were calculated by receiver operator characteristics analysis andχ2 test, respectively. We also tested trends of changes in eGFR according to changes in WC in each age decade. RESULTS: There were 8,015 men participants. During the 5-year follow-up, 11.0% of the participants (N = 878) had developed to incident CKD. When basal WC was greater than 80.0 cm, which was decided by Youden's Index, there was a significantly higher risk of incident CKD [OR 1.57 (95% confident interval 1.35-1.84)]. Changes in WC over 5 years were significantly related to eGFR decline in young men (< 40 years old) with normal blood pressures and normoglycemia. CONCLUSIONS: These findings suggest that WC > 80.0 cm is a risk factor for incident CKD and strongly associated with a decline in eGFR in the young- to middle-aged working healthy men.
BACKGROUND: Obesity is a risk factor for the development of chronic kidney disease (CKD). However, it remains to be fully examined whether fatness is more useful in predicting incident CKD. We aimed this study to determine the association of body fat, body mass index and waist circumference (WC) with subsequent changes in estimated glomerular filtration rate (eGFR) and incident CKD in young- to middle-aged working men. METHODS: We analyzed data from annual health check-up in male workers aged from 20 to 60 years with basal eGFR of 60-90 mL/min/1.73 m2. Cut-off values of parameters and odds ratio (OR) for the incident CKD were calculated by receiver operator characteristics analysis andχ2 test, respectively. We also tested trends of changes in eGFR according to changes in WC in each age decade. RESULTS: There were 8,015 menparticipants. During the 5-year follow-up, 11.0% of the participants (N = 878) had developed to incident CKD. When basal WC was greater than 80.0 cm, which was decided by Youden's Index, there was a significantly higher risk of incident CKD [OR 1.57 (95% confident interval 1.35-1.84)]. Changes in WC over 5 years were significantly related to eGFR decline in young men (< 40 years old) with normal blood pressures and normoglycemia. CONCLUSIONS: These findings suggest that WC > 80.0 cm is a risk factor for incident CKD and strongly associated with a decline in eGFR in the young- to middle-aged working healthy men.
Entities:
Keywords:
Body mass index; Chronic kidney disease; Total body fatness; Waist circumference; Working men