Table 2. Predictive factors for DN incidence risk in T2DM patients.

Intercept and variable	Prediction model
	β	z-value	P-value	OR	2.5% CI	97.5% CI
Intercept	-7.174	-8.97	<0.001***	0.001	0	0.003
SEX=Male	0.123	1.12	0.264	1.131	0.911	1.405
AGE=50-69	0.532	1.17	0.241	0.587	0.241	1.430
AGE=>=70	0.813	1.77	0.078	1.325	1.083	1.621
COURSE=5-9	-0.010	-0.07	0.942	1.010	0.781	1.305
COURSE=10-14	0.101	0.730	0.464	1.116	0.869	1.434
COURSE=15-19	0.225	1.48	0.139	1.265	0.957	1.672
COURSE=20-24	0.294	1.46	0.144	1.355	0.930	1.975
COURSE=25-29	0.075	0.22	0.823	1.089	0.568	2.086
COURSE=>=30	0.653	1.77	0.077	1.940	0.947	3.973
SMOKE=YES	-0.062	-0.49	0.628	0.939	0.730	1.209
DRINK=YES	-0.131	-1.05	0.293	0.877	0.730	1.209
SBP=130-139	0.355	2.10	0.036*	0.464	0.348	0.619
SBP>139	0.767	5.22	<0.001***	0.662	0.519	0.845
DBP=80-89	0.304	2.81	0.005**	1.355	1.096	1.674
DBP=>89	0.443	3.34	<0.001***	1.526	1.191	1.956
BMI=24-27.9	0.406	3.65	<0.001***	0.666	0.536	0.828
BMI=>=28	0.665	5.16	<0.001***	1.295	1.041	1.611
FBG=6.1-6.9	1.578	6.88	<0.001***	0.174	0.113	0.269
FBG=>6.9	1.748	7.89	<0.001***	0.844	0.660	1.079
PBG=7.8-11.0	0.194	1.14	0.256	0.740	0.539	1.015
PBG=>11.0	0.302	1.87	0.062	0.898	0.716	1.125
HbA1c=6.0-6.9	0.252	1.35	0.176	0.675	0.466	0.977
HbA1c>6.9	0.393	2.08	0.037*	0.868	0.707	1.065
TC=>=4.5	0.137	1.32	0.187	0.872	0.711	1.069
TGs=>=1.7	0.193	2.01	0.045*	1.213	1.005	1.465
HDL=>=1.0	0.229	0.73	0.468	0.795	0.429	1.476
BUN=3.2-7.09	1.639	3.14	0.002**	0.194	0.070	0.540
BUN=>=7.1	1.906	3.59	<0.001***	1.306	1.035	1.648
SCR=44-106	-0.1707	-0.70	0.485	1.186	0.735	1.915
SCR=>106	0.7949	2.20	0.028*	2.626	1.550	4.450

Note: β is the regression coefficient. “***” indicates P<0.001, “**” indicates P<0.01, “*” indicates P<0.05.