The Relationship between Body Mass Index and Incident Diabetes Mellitus in Chinese Aged Population: A Cohort Study

Table 2

The adjusted hazardous ratios and 95% confidence interval of the risk of diabetes mellitus for the baseline BMI groups ().

Model	BMI groups							trend
	BMI; <18.5	BMI; 18.5 to<22.5	BMI; 22.5 to<25.0	BMI; 25.0 to<27.5	BMI; 27.5 to<30	BMI; ≥30.0
Sample	201	1,750	2,130	1,778	777	275	—	—
Case	5	58	130	107	68	26	—	—
Model 1	0.73	1.00 (ref)	2.17	2.17	3.22	3.35	1.34	<0.001
	(0.29~ 1.83)		(1.56~3.00)	(1.56~ 3.02)	(2.25~ 4.62)	(2.09~ 5.31)	(1.23~ 1.45)
Model 2	0.73	1.00 (ref)	2.13	2.14	3.17	3.14	1.32	<0.001
	(0.29~ 1.82)		(1.54~2.95)	(1.53~3.00)	(2.19~4.59)	(1.94~5.09)	(1.21~ 1.44)
Model 3	0.77	1.00 (ref)	1.51	1.42	1.83	1.50	1.12	0.01
	(0.31~ 1.92)		(1.09~ 2.10)	(1.01~ 2.00)	(1.26~ 2.66)	(0.92~ 2.44)	(1.03~ 1.22)

Note: (1) model 1: adjusting age (y) and sex. (2) Model 2: adjusting age (y), sex, systolic blood pressure (mmHg), diastolic blood pressure (mmHg), total cholesterol (mmol/L), triglyceride (mmol/L), low-density lipoprotein cholesterol (mmol/L), high-density lipoprotein cholesterol (mmol/L), eGFR (mL/min per 1.73 m²). (3) Model 3: adjusting age (y), sex, systolic blood pressure (mmHg), diastolic blood pressure (mmHg), total cholesterol (mmol/L), triglyceride (mmol/L), low-density lipoprotein cholesterol (mmol/L), high-density lipoprotein cholesterol (mmol/L), eGFR (mL/min per 1.73 m²), fasting blood glucose(mmol/L), and glycated hemoglobin A1c (%).