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

Table 3

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

Group	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
Men	Sample; ()	117	993	1,282	1,117	450	151	—	—
	Case; ()	3	38	84	66	51	16	—	—
	Model	0.60	1.00 (ref)	1.89	1.76	3.45	2.84	1.34	<0.001
		(0.18~ 1.93)		(1.28~ 2.78)	(1.16~ 2.65)	(2.22~ 5.35)	(1.56~ 5.12)	(1.20~1.49)
Women	Sample; ()	84	757	848	661	327	124	—	—
	Case; ()	2	15	46	41	17	10	—	—
	Model	1.28	1.00 (ref)	2.81	3.31	2.72	4.26	1.31	<0.001
		(0.26~ 4.96)		(1.56~ 5.06)	(1.81~ 6.02)	(1.35~ 5.51)	(1.86~ 9.73)	(1.13~1.51)
Age (<75 years)	Sample; ()	116	1,248	1,619	1,388	600	206	—	—
	Case; ()	2	28	77	70	40	18	—	—
	Model	0.77	1.00 (ref)	2.08	2.16	3.00	3.67	1.32	<0.001
		(0.18~ 3.23)		(1.35~ 3.23)	(1.38~ 3.39)	(1.80~ 4.84)	(2.00~ 6.76)	(1.18~1.48)
Age (≥75 years)	Sample; ()	85	502	511	390	177	69	—	—
	Case; ()	3	25	53	37	28	8	—	—
	Model	0.69	1.00 (ref)	2.19	2.08	3.58	2.21	1.31	<0.001
		(0.21~ 2.31)		(1.35~ 3.54)	(1.24~ 3.50)	(2.04~ 6.28)	(0.98~ 5.00)	(1.15~1.49)

Note: (1) model: 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), and eGFR (mL/min per 1.73 m²).