Hazard ratios for cause-specific mortality according joint categories of body mass index.

<p>Hazard ratios (95% CI) indicates the risk of body mass index (BMI) <18 kg/m² compared with the risk in all the other BMI groups. The adjusted model includes sex and age. The fully adjusted model includes smoking, drinking, physical activity, systolic blood pressure, history of cardiovascular disorders, serum lipid disturbance, diabetes mellitus and antihypertensive drug treatment additionally.</p>*<p>p<0.05,</p>§<p>p<0.01,</p>¶<p>p<0.001.